Google Pixel Watch 4 Review: Wear OS 6.1 Tested

This detailed Google Pixel Watch 4 review covers everything from the new 40-hour battery life to the dual-frequency GPS and the Gemini AI integration – all tested. It’s clearly the best Android smartwatch ever.

The new Pixel feels great on the wrist. It’s polished. Easy-to-use. Finished. It’s a complete smartwatch experience that has put to bed almost all the niggles of the last five years or so.

This product has been awarded the the5krunner Editor's Choice 2026. The award is given to products that achieve an exceptional standard in independent testing.See all Editor's Choice awards.

Wear OS 6.1 Update: Double-Pinch & Wrist Gestures Tested

Wear OS 6.1, now on Pixel Watch 4, adds double-pinch and wrist-turn gestures:

• Double Pinch (Pixel Watch 4 exclusive): Pinch index finger + thumb twice to scroll notifications, send Smart Reply, manage timer/stopwatch, snooze alarms, play/pause music. Answer/end calls coming soon.
• Wrist Turn: Flick your wrist away/back to instantly dismiss calls/notifications.
• 2x Faster Smart Replies: On-device AI cuts messaging lag—noticeable improvement (not Pixel Watch 2).
• Always-On Extras: Media Controls, Now Playing, Stopwatch/Timer stay visible. Screenshots now save to the companion app.

Pixel Watch March 2026 update – adds these:

• Satellite SOS: now in Canada, Europe, Alaska, Hawaii
• Standalone earthquake alerts (PW2+)
• Express Pay (tap without opening Wallet, PW2+)
• One-handed gestures now on PW3
• Phone-left-behind alerts + auto-lock on BT disconnect
• Faster biometrics with Pixel 8 Pro+ phone

Jan 2026 retest: Smart replies 2x faster. Double-pinch solid daily but flaky with gloves mid-run. Still a clear step forward.

Pixel Watch 4 Stand-Out Features – Battery, Design & Performance

I can’t fault the hardware. I tried. The physical watch looks great with its domed display. Many of its watchfaces and on-screen interactions look great and work well.

The latest generation of processor might have an odd name – Snapdragon W5 Gen 2 – what that means to you is smooth, zippy and efficient performance everywhere. The heart rate sensor delivers similar levels of accuracy to the Apple Watch at night, during the day and during sports. The GPS (GNSS) accuracy is also very good due to the newly added dual-frequency precision.

That’s now up to 40 hours, which is better than the Apple Watch and on par with the bulky Apple Watch Ultra 3.

“Garmin is better!” you shout. Garmin makes sports watches and has to make some significant compromises on smart features, whilst excelling in sports features and uber-long battery life. Google answers this with the supreme practicality of incredibly good, fast charging, getting a 50% charge in 15 minutes.

Every smartwatch has built-in obsolescence of various sorts. Usually, it’s the battery which effectively degrades to the point of annoyance within 3-5 years. Google is the first modern smartwatch to let you change the battery. Wow.

Who Should Buy the Pixel Watch 4 (and Who Should Skip)

Pixel Watch Suits

• Android phone owners looking for their first proper smartwatch experience
• Earlier Pixel Watch or Fitbit owners are seeking a mature alternative.
• Anyone fed up with poor Google Assistant performance – Market-leading Gemini AI is baked in.

Skip Pixel Watch if

• You own an iPhone or a Samsung Galaxy. Galaxy Watch is worth a look for the latter.
• You are a committed athlete looking to pair sports sensors (e.g., heart rate straps, power meters) and grab support for Triathlons, Hyrox or CrossFit.
• You need multi-day endurance-grade battery life. Buy a sports watch.

Pixel Watch 4 – Everyday Use & Interface

The Pixel Watch runs Wear OS 6, which is super easy to get to grips with.

For your main watchface, you can choose from a large selection of often good-looking Pixel faces. Certain parts of the face are called ‘complications’ that might reveal nuggets of information, like the temperature, and, when tapped, lead to more detailed insights, such as today’s weather. Here are some of my favourites.

Swiping left or right takes you through your ten favourite tiles. These are rich screens dedicated to a particular feature. Like complications, these can show you information from the associated app without opening the app. Including 3rd-party tiles, there are about 50 choices.

• Core/System: Gemini, Next Event, Tasks, Google Wallet, Weather, Media, Google Maps, Home Favourites, Alarms, Timer, Stopwatch, Contacts
• Fitbit: Fitbit Today, Exercise, Heart Rate, Cardio Load, Sleep, Stress, Safety Check, ECG, Blood Oxygen (SpO2)
• Selected 3rd Party tiles: Spotify, Strava, Authenticator, AllTrails, Home Assistant

Swiping up shows your notifications. My favourite notification is a video clip from my Nest doorbell camera. Swiping down reveals settings and the control centre.

The rotating crown to the right is pressed to bring up a scrollable list of apps, whereas the smaller, flush presser above it brings up Gemini or recent apps.

Tip: Place the watch on charge on its side, and it becomes a pretty little bedside digital clock.

Pixel Watch 4 – Sports Use & Interface

I usually start a workout either from a complication on my main watchface or from the quickstart tile. If I wanted to do something unusual for me, like Yoga, I’d choose that from the full list of sports. Typically, I did an open run or ride with no goals, but I always used the 1km splits when running and sometimes the HR alerts.

When in the workout itself, it’s easy enough to use the crown to scroll between pages. There’s no easy manual lap option, though, which is a pain (tap to lap would be a welcome addition), but the autolap was good enough for me most of the time. It is a little awkward to swipe the END WORKOUT tile from the left, but that awkwardness prevents you from accidentally stopping your workout.

Whilst the Watch felt mostly bug-free in sports usage, there were a few oddities on the Fitbit smartphone app where workouts sometimes appeared on the wrong day (with the correct date shown), heart rate was sometimes exported but not shown in the destination software platform, and sometimes workouts without ‘enough’ GPS/HR never synchronised to Strava.

Bugs aside, the Fitbit (premium) app itself is more than capable for recreational use and syncing to other sports platforms for a deeper dive or social sharing (e.g. Strava). I can’t see how it adds enough value to justify a subscription – the addition of AI might change that. Still, everything I need see in the subscription version is pretty much available for free in the non-subscription parts of other platforms (e.g. Garmin Connect).

If you have the premium (subscription) version of the Fitbit app, you’ll see additional insights, such as Daily Readiness. Oddly, mine appeared on the app but not the watch.

Advanced Running Metrics

Pixel Watch 4 also bags advanced running metrics, similar to those on many other smart and sport watches. However, advanced runners realise that it is difficult to change these through drills. Advice: Don’t worry about these.

• Cadence (Steps Per Minute)
• Ground Contact Time (GCT) – your ‘foot on the ground’ factor
• Vertical Oscillation (VO) – your bounce factor
• Vertical Ratio % (VR)
• Stride Length

Cadence is the exception. Typically, you would aim for 170-180spm to reduce the risk of injury and probably run faster. You will also find that when you run faster, all the other advanced metrics improve.

I was unable to compare and test their accuracy because the data was not exported from the Fitbit app.

One noteworthy point is that many recent additions to the Fitbit subscription app do not require a wrist device with a screen, tentatively suggesting that a screenless Fitbit band to rival Whoop is in the offing for 2026.

Pixel Watch 4 Gemini AI – The Smarter Assistant – Tested

Google adds Gemini as the replacement for Google Assistant. It’s a core feature of the Pixel Watch 4, intended to be more conversational and practical than before. It’s free, but the link between AI and the health/sports-coaching side of things requires a subscription (fair enough).

How Gemini Works – On test

• Instant Access: Gemini is accessed via the flush-mounted button on the side of the watch.
• Conversational Flow: It performs simple commands or handles complex, multi-step queries (planning a trip, getting detailed recipe steps).
• Contextual Awareness: It uses the watch’s data to provide smarter answers, such as showing your step count from Fitbit.

The table below compares Gemini’s real-world performance with Apple’s Siri. Overall, Gemini wins.

Pixel Watch 4 Accuracy – GPS & Heart Rate Real-World Tests

I performed highly detailed testing on various aspects of the sporty side of the watch. Typically, I compared two of the very best and most accurate watches on the market – Apple Watch Ultra 3 and Garmin Forerunner 970, but I use other devices too, like Whoop MG and Polar SENSE. Let’s start with some of the easier test results.

ECG Test

Apple Watch Ultra 3, Garmin Forerunner 970 and Pixel Watch 4 each performed two 30-second ECG tests. All detected a normal sinus rhythm. This is the expected result. A few years ago, I had a proper 5-Lead hospital ECG, which confirmed the same.

Note: I used the Pixel Watch’s on-demand ECG during a 30-second manual test. This limits its usefulness. However, after publication, I was made aware that Pixel supports background detection of irregular rhythms (not tested).

Steps Test

I went for a ‘normal’ walk. At least it was normal if wearing three watches and taking a dog (mostly off-lead) counts as normal. There’s considerable variation in the number of steps recorded here.

• Pixel Watch 4 – 6231
• Garmin Forerunner 970 – 6146
• Apple Watch Ultra 3 – 5654

The devices showed a step count variation of 577 steps (9.2% spread), with Pixel Watch 4 the highest (+577 vs lowest)

Scored Running GNSS/GPS Test

For the last decade, I’ve run with most sports watches over my standard 10-mile course following a proven methodology. It presents difficult-to-impossible GPS challenges in places. The biggest longitudinal takeaway for me is that the latest dual-frequency chpsets are noticeably more accurate than previous generations. Accuracy has generally improved, but we are now at a point where further improvements will be hard to achieve.

Another takeaway for me is that two tiers of dual-frequency accuracy have emerged over the last couple of years. Pixel Watch 4 definitely falls into the accurate-but-less-so camp along with the likes of Suunto, Amazfit and Garmin’s prior gen. The latest generation of dual-frequency from Coros, Garmin, and Apple is very slightly better. It makes little difference to you.

Watch 4 scored 83% in the test (full methodology, detailed scores and links to source files), which is very good. It did very well on the test’s sections with low difficulty and performed well on those with medium or hard difficulty.

More GPS Tests

Comparators in the following tests are the excellent Forerunner 970 and Apple Watch Ultra 3.

Easy Run GPS Test

From the overview, Pixel (black) is the top route trace and where there is a difference, the red/green from the other watches clearly shows through. From a high level (the one reviewers normally would show you), everything looks perfect.

I’m comparing two of the best-ever GPS watches, and there are differences when zoomed in. Google and Apple both have similar algorithms that smooth the corners. Still, there is some unnecessary deviation from the Pixel, especially near the Ranelagh Harriers club, and the brand needs to address situations like that under tree cover.

Easy bike Test

Repeated 11km laps of my local park make error patterns easy to spot. You can see here that Apple is the one struggling this time, being about 3m from where it should be.

GPS tracks on regular road cycling are nearly always as good as this; you rarely get close to buildings to affect the GPS signal.

Pixel Watch 4’s Hard GPS Run Test –

Here is an overview of a hard GPS run test, followed by five images showing performance through challenging sections. Pixel watch appears to perform broadly similarly to FR970 and AWU3. Indeed, at least in these examples, it performs slightly better, being closer to the real track when buildings are present and recovering well after a long tunnel.

The dual-frequency conundrum – a definitive explanation

In all GPS watches, dual-frequency performance is not as good as the literature implies. Tracks still deviate near large buildings because the watch accepts reflected (multipath) signals from them. The primary purpose of dual-frequency is ionospheric correction, not multipath rejection. While the two frequencies experience slightly different multipath delays, reliable multipath mitigation only works when the additional path length is at least 20–30 m. A fellow sports-GNSS expert (MIKEG, speed sailor) correctly pointed out that shorter reflections cannot be separated — hence the remaining errors in urban environments, as I found! Now you know.

Optical HR Accuracy Tests

The wrist is the worst place to take optical HR readings, so a watch is fighting an uphill battle to be accurate given the moving, flexing wrist. Exaggerated movements during some sports compound the difficulty. To be blunt, you simply can’t expect a watch to be accurate for HR during sport.

I compare to a Garmin ECG chest strap and to biceps-based PPG (optical) sensors, all of which are generally accurate.

My testing was in November. It’s colder outside, which can affect blood flow near the skin’s surface, making it even harder for watches to record accurate HR.

Hopefully, that’s set your expectations sufficiently low!

Several themes run through the tests.

• All devices on test experienced perfect and less-than-perfect results
• Apple Watch has dropouts. This affects the workout average and will impact exercise load calculations
• Pixel Watch mistakenly used cadence instead of HR (cadence lock) during one run. This old-school error needs fixing.
• Even my Garmin chest strap seemed to have several bad moments. This should not happen.
• Pixel Watch experiences several under- and over-reporting blips.
• The Pixel Watch generally got a good average HR for every workout.

Elevation Accuracy Test

Google’s Pixel Watch 4 has a barometric altimeter, which autocalibrates based on GPS elevation, Barometric sensor data, Weather/pressure data, and Known location information. As you can see from this ride, my starting elevation is noted as 14m…which is spot on. The subsequent elevation gains/losses are broadly in line with those of the other two devices (Wahoo BOLT and Apple Watch Ultra 3).

The Pixel Watch is likely the most accurate of the three over an hour.

Sleep Tracker Accuracy Comparison

Over 25 nights, I compared the Google Pixel Watch 4, Apple Watch Ultra 3, and Eight Sleep Pod for total sleep time, awake time, REM, light sleep, deep sleep, and overall sleep score. Note: this is personal data only (n=1) — no polysomnography (PSG) gold standard was used.

Key Findings

1. All three devices agree extremely well

• Strong correlations between every pair (r > 0.85 for all metrics)
• Night-to-night differences are small: typically ±10–15 min for stages, ±3–5 points for score

2. Most accurate device per metric (lowest MAE vs. three-device consensus)

3. If we treat Eight Sleep as the reference (ground truth)

• Apple Watch Ultra 3 is more accurate overall (average MAE ≈ 14 min across all stages + score)
• Google Pixel Watch 4 is slightly behind (average MAE ≈ 18 min)

4. Published validation studies (vs. lab PSG)

In short, all three trackers are broadly consistent with each other in real-world use. Apple Watch tends to match Eight Sleep the closest, while Pixel Watch edges out on deep sleep detection.

Pixel Watch 4 Battery Life – Real 40-Hour Test + Fast Charging

I found no evidence to doubt any of the battery claims for the 45mm model. If anything, the AOD battery life slightly exceeded 40 hours, although the battery performance will inevitably degrade over time.

The stated charging time of 15 minutes to 50% was also correct, give or take a minute.

Pixel Watch 4 – What’s New vs Pixel Watch 3

Google started Wear OS as an open ecosystem, allowing many watch companies to easily access Google-designed software that works well with Android phones.

The company pivoted on May 18, 2021, when it effectively merged its efforts with Samsung (Galaxy Watch). Pixel and Galaxy soon became the dominant higher-end watch brands, and Google’s Fitbit will likely re-emerge in 2026 as a sports-focused sub-brand using the same software.

Many Wear OS watch companies, like Fossil, soon fell by the wayside. Still, OnePlus, Mobvoi (TicWatch), and Xiaomi (2023) remain committed to Wear OS, though they seem to always use older versions of Google’s software.

Pixel Watch 4 – All the New Features vs Pixel Watch 3

There are many changes compared to the earlier Pixel Watch 3, which, in total, make the Pixel 4 as good or better than its competitors. If you like lists…here you go, it’s time to fill your boots:

New Sensors

• Satellite SOS emergency assistance (off-grid)
• Dual-frequency GNSS (more accurate GPS)
• More accurate skin temperature sensor
• (Retains cEDA stress sensor, compass, barometric altimeter)

New display & components

• 50% brighter (3,000 nit)
• 10% larger display
• 16% smaller bezel
• 25% faster processor,
• 50% less power required
• Co-processor chip architecture added
• 15% stronger haptics
• Better spoken-sound quality
• Improved speaker volume
• Water ejection capability added for the speaker

Battery & Charging

• Battery life is 25% better
• Faster charging, 0-50% in 15 minutes
• New charging dock
• User-serviceable battery and display

Sports Features

• Updated Fitbit app, AI features in Fitbit Premium Personal Health Coach
• AI workout detection
• Real-time ‘screen share’ to a bike-mounted Phone
• (Retains offline maps)

Smart and wellness features

• 18% more accurate sleep stage detection
• Wear OS 6.0, including Material 3 UI
• Many Gemini features, including AI smart replies to texts

Pixel Watch 4 Build Quality and Core Specifications

The Snapdragon processor is specifically designed for optimum Wear OS performance, so the latest gen is an obvious inclusion. The watches are industry-standard ‘medium’ and ‘small’ sizes, and they are very light. The only negative aspect of the specs is the Gorilla Glass, which is not as good as sapphire (not offered – it is on the Apple LTE equivalents). Despite that, Gorilla Glass 5 is the highest rated of its kind.

Pixel watch – A Potted History

Some more lists for you, in the form of a timeline, to help you understand the progress of Pixel’s capabilities over the years.

• Gen 1 October 13, 2022: Established the core design (round, domed glass), but was held back by large bezels, poor battery life (24 hours), and slower chargers.
• Gen 2: October 12, 2023
• Gen 3 September 10, 2024 (The Fitness Pivot): Introduced the essential 45mm size option and dramatically ramped up fitness tracking via Fitbit platform integration. Key additions included advanced training metrics such as Cardio Load, Target Load, Daily Readiness Score, and running-efficiency tracking (ground-contact time and vertical oscillation). Display brightness increased to 2,000 nits.
• Gen 4 August 2025 (Fine-tuning): New processor (Snapdragon W5 Gen 2), 3,000nits max brightness, and incorporates Dual-frequency GPS/GNSS accuracy. The 45mm battery capacity increased to 455mAh.

Wear OS – Decline and Rebirth

Android Wear languished until the Samsung partnership. That bedded down after a couple of years, but we have only seen a polished interface since Wear OS 5.0. The Pixel Gen 4 is the first proper Google hardware to use it.

• Android Wear 1.0 – March 18, 2014: Initial release; notifications, Siri-like voice, basic apps.
• Android Wear 1.3 – December 10, 2014: Watch face API.
• Android Wear 2.0 – February 9, 2017: Standalone apps, keyboard, Google Assistant.
• Rebranded to Wear OS – March 15, 2018
• Wear OS 3.0 – May 11, 2021: Tiles API, dynamic theming, 30% faster performance, Fitbit integration.
• Wear OS 3.5 – October 11, 2022: Gesture controls, improved battery, Samsung collaboration.
• Wear OS 4.0 – August 10, 2023: Watch Face Format, security enhancements, power optimisations.
• Wear OS 5.0 – August 13, 2024 (announced May 2024): Efficiency for battery, grid app launcher, running metrics, and Watch Face Format upgrades.
• Wear OS 6.0 – August 2025 (announced May 2025, Galaxy Watch8 July 29): Material 3 Expressive design, AI enhancements, media controls, kids mode.
  • Boosts battery life using a secondary, low-powered processor for certain tasks
  • Advanced Running Metrics: Ground Contact Time, Vertical Oscillation, and Stride Length.
  • Improved alerts and notifications (incl. in sports)
  • Gemini AI adds smarter text replies and all-around interaction.

Pixel Watch 4 – Design, Display & Replaceable Battery

The most striking design element is the Actua 360 domed display. When I first saw it in the marketing materials, I thought, “That looks nice enough,” but I didn’t think it would suit my personal style. I was wrong. It’s a beautiful-looking timepiece in the flesh. But you need decent watch faces to make the visuals pop, and, luckily, Google absolutely nails the watchfaces. I’ve got over 100 smart watches, and this looks as good as the very best of them.

Let’s Talk Battery Anxiety

Sports watches from Garmin, Coros, and Co. have impressive battery life, whereas smartwatches from Apple and Google lag significantly behind. Invariably, smartwatches need to be charged daily. A few years ago, smartwatches struggled to deliver day-long battery life, and if you had a long workout with GPS or used LTE/4G features too much, you could drop to below 24-hours and worry about it.

Pixel Watch 4 (and Apple Watch Ultra 3) have moved beyond that. The acute battery anxiety is no longer there. What’s really improved, though, is the often-overlooked fast charging. Google can now charge to 50% in 30 minutes, so if you’re organised enough to charge your watch whilst showering or getting ready for bed, that will be the only charging routine you need.

Eco Warrior or Greenwashing

I usually gloss over reviewing the eco aspects of smartwatches. Mainly because companies like Apple have tended to greenwash their credentials. Pieces of complex 21st-century tech just aren’t eco-friendly, no matter how many trees you plant.

Like Apple, Google now uses recycled aluminium, which must be good for the environment. Google has gone further. I criticised Apple in a review a couple of years ago, stating that, regardless of how many solar panels they built, it would be far better to have interchangeable batteries to prolong how long we keep our tech for – of course, that makes less money, so Apple doesn’t do it. But now Google does. You can replace the battery and screen by yourself.

Gemini – Yet another ‘Powered by AI’ or the real deal

Google Digital Assistant, aka Gemini, is a first step replacement for the old one. I call it the ‘first step’ because it has pretty much replaced what was there before, but there is still a long way to go. The obvious next step is baking Gemini into the Fitbit app. At the time of writing, any question about your personal sports performance or physiology just opens the Fitbit app. Not good.

Ignoring the sports stuff, Gemini is a good, smart assistant. It provides excellent answers to a wide range of requests, with the required level of detail. I found the odd poorly presented response (e.g. with technical code included in the response) and some responses that were not suited to the small screen format (e.g. I asked for a detailed plan for visiting Japan – my bad…I did ask!)

Should You Upgrade to Pixel Watch 4 from Gen 3 / 2 / 1?

You have many choices of smart or sports watches to pair with your Android phone. Even though you can’t use an Apple Watch, I’ll contrast the market leader with the Pixel to help you appreciate how the technologies influence each other.

Pixel Watch 4 vs. Samsung Galaxy Watch 8

You can use either watch on your Android phone. If you’re on a Pixel or Galaxy phone, you will (and should) buy a watch of the same brand.

Despite a different aesthetic, the two watches are broadly similar under the hood. However, the Pixel Watch 4 is better: it uses the latest-generation processor and offers a shorter charging time (15-minute fast charge). Pixel Watch 4 is slim (12.3mm), but Galaxy Watch 8 is slimmer still (8.6mm).

Pixel Watch also edges out the competition in sports and wellness features. e.g., Samsung phones restrict ECG to their own-branded watches. Through its Fitbit ecosystem, Pixel offers quite decent sports tracking, sports coaching (160 plans), and advanced metrics covering running form and sports physiology, such as Cardio Load.

Pixel Watch 4 vs. Apple Watch

Apple Watch (non-ultra) can struggle to reach the one-day mark. Pixel Watch doubles it and matches what Watch Ultra offers (i.e. over two days). Other reviewers note the Pixel’s superior sports tracking performance for GPS and heart rate. I don’t buy that argument. My extensive tests in this review show that the Pixel Watch is good but not market-leading. That said, Apple Watch has a longstanding annoyance: it fails to record heart rate unless it is confident of signal quality, so what’s recorded is usually excellent, but there are gaps.

Apple Watch GPS accuracy (single frequency) is broadly the same as Pixel Watch (dual frequency), but Apple Watch Ultra 3 (dual frequency) is more accurate than both – market-leading. They are all good enough for almost everyone. Even me!

Pixel Watch 4 vs. Garmin

It depends on which Garmin you compare to. Pixel Watch is generally more accurate than Garmin’s previous generation, but not quite as good as the current generation of Synaptics GNSS dual frequency chipsets and Elevate 5 optical HR sensors. Compared to Garmin’s direct competitor, the Venu 4 ($550), the Venu 4 has better optical HR and comparable GPS accuracy.

But don’t get bogged down with the accuracy details. Neither the Venu 4 nor the Pixel Watch 4 are perfectly accurate, but they will likely be accurate enough for the job and face the same problem of wrist usage (the worst place to locate an optical sensor).

But you should get bogged down with the side sports ecosystem. Pixel Watch has some fledgling features in these areas, but Garmin is streets ahead with a broad, extensive set of sports features. Pixel Watch is years behind and, in reality, will never catch up – that might be the job for the Fitbit brand one day.

Do you plan to be a competitive age triathlete (like me), compete in extensive CrossFit training for a HYROX event (like me), and cycle a lot with advanced 3rd-party sensors such as power meters and indoor smart trainers (me again)? You simply have no choice but to use Garmin for those. That’s what I do (Garmin Forerunner 970 – the best sports watch)

We’ve talked about the Pixel Watch’s 2-day battery life, which is OK. With Garmin, it is hard to buy a watch with a battery life of only 2 days. Some Garmin watches can last 2 days on battery-hungry GPS and sports-tracking modes. Pixel Watch lasts two days as a plain old watch, doing a few smart things here and there. That’s a big difference.

But! (There’s always a but, sometimes a big one).

How often do you plan to use your watch? Every day, right? Garmin watches have a very steep learning curve and are not easy to use, even when you know them intimately.

Garmin’s watch software is notoriously buggy (Evidence: Active garmin forums and Reddit). There is always something wrong with one watch or feature somewhere in the ecosystem. Garmin’s software development is unnecessarily complex, with multiple versions and branches of code that are too complicated for it to keep a professional grip on. It’s really quite bad, but you’ll only notice the obscure problems if you’re doing obscure things with the watch.

Like Pixel, Garmin has a large watch app store that is heavily focused towards sports-related uses. That’s great if you are into your sports (super-great), but less so if you do one 5k parkrun a week. Pixel, like Apple, has a diverse range of apps and crucially also more and deeper smart capabilities – for example, Pixel Watch can interact visually with your video doorbell, Garmin will never do that.

The watchfaces on Garmin watches tend to be visually poor, and the watches themselves are designed to look rugged (Fenix) or sporty (Forerunner, plastic-like). Its looks are appropriate for the target demographic. However, where Garmin tries to compete with smart watches (Venu, vivoactive), its looks are hit-or-miss. You might want to contrast the beautiful domed lens of the Pixel Watch with a similar domed lens on Venu, but surrounded by a somewhat ugly bezel. Garmin struggles to do ‘pretty’ and ‘refined’.

Pixel Watch 4 vs Apple Watch

Apple Watch is the best-selling watch ever and is widely believed to be the best smart watch. You’ll never get to choose between Apple and Google on the same phone because of compatibility issues.

The apparent difference is the shape. Apple’s rectangular shape makes designing screen elements easier, enabling it to make excellent use of screen real estate. Pixel has a round format and a similar control/screen; however, unlike many other companies (Garmin) that work with a round face, Google Pixel has employed competent designers to deliver a generally excellent-looking interface (e.g. it handles the curved display well).

Google has better performing batteries, but Apple edges it with slightly more accurate sensors and a wider range of price points – its SE 3 version is excellent value.

Overall, in terms of capabilities, they’re close. Let’s leave it at that, since your phone will dictate which you buy, so you don’t really have a choice.

Pixel Watch 4 Review Conclusion – The Best Android Smartwatch, Finally?

Pixel Watch 4 is now ready to buy. It’s a significant marker in the sand and will signal a turning point in the fortunes of Google’s premier smartwatch.

The shock update was a world-first satellite connectivity option. Perhaps most of us will never need that, but we will all love and use the significantly improved 40-hour battery life and charging speed (50% in 15 minutes).

I was impressed by the overall aesthetics and the super-easy-to-use interface. Yet when it came to the sports and activity features, it was more of a good-but-meh. Don’t get me wrong, they’re perfectly fine, and in line with some smart watches and better than others, but I don’t see anything to justify the Fitbit app subscription other than the tailored training plans and workout videos, which only some of you will want. The accuracy was fine as well (better than most) and would benefit from a tweak or two.

Taking all this into account, Google will likely add a sportier Fitbit alternative (or two) next year and will undoubtedly double down on deeper AI integration for your sports and wellness metrics.

Pixel Watch 4 Prices, Sizes & Where to Buy

Pixel Watch 4 comes in 2 sizes, each with an LTE/4G option for an additional $100. The LTE model is otherwise identical to the base model, although battery life shortens considerably with LTE usage.

Google Pixel Watch 4

GPS Smart Watch: 41mm, 45mm.

$349

£349, 399€

+other retailers

Further Product Help and Information

• Product Page: Pixel Watch 4 – Google Store Overview
• Manual / Help: Set up Google Pixel Watch (Includes instructions and setup guide)
• Firmware Updates: Google Pixel Watch Help Community (Official update announcements)
• Firmware Update Instructions: Keep Pixel Watch software and apps updated (Instructions on how to check/force updates)

Key Health and Fitness Sensor Validation

• NIH Study: Validation of Fitbit/Pixel Watch Sleep Stages (vs. PSG) (Fitbit/Pixel Watch, Sleep Stages)
• Google Research: Loss of Pulse Detection on the Google Pixel Watch 3 (Google Pixel Watch 3/4, PPG & Accelerometer for HR/Cardiac Arrest)
• NIH Study: Accuracy of Smartwatch ECG for Atrial Fibrillation Detection (Smartwatch, ECG)
• ResearchGate: Heart Rate Variability Measurement through a Smart Wearable Device (Wearables, HRV derived from PPG)
• MDPI Study: Low-Cost Wearable Device to Estimate Body Temperature from Wrist (Wearable Device, Skin Temperature)
• PLOS Digital Health: Accuracy Study of SpO2 in Consumer Smartwatches (Smartwatches, SpO2)
• ResearchGate: Performance Analysis of Multi-GNSS cm-Level Positioning in Smartwatches (Smartwatch, GNSS/GPS)
• MDPI Study: Does Smartphone Accelerometer Technology Provide Accurate Data? (Smartphone, Accelerometer)
• ResearchGate: Comparative Evaluation of Wearable Devices for Measuring Elevation Gain (Wearable Devices, Altimeter/Barometer)

Last Updated on 2 April 2026 by the5krunner

the5krunner

tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors.