This guide is for anyone who already owns a Google Pixel Watch and is weighing up the Pixel Watch 5.
The watch you own decides the answer far more than anything new in the Pixel Watch 5. The first Pixel Watch lost Google’s software support in October 2025 and is the only model with a clear case to move. The Pixel Watch 2 runs Wear OS 7 but will get no more updates, the Pixel Watch 3 is supported until October 2027, and the Pixel Watch 4 has the same case, screen and battery life as the Pixel Watch 5.
Full specifications are on the spec pages for the Pixel Watch 4, Pixel Watch 3, Pixel Watch 2 and first Pixel Watch.
The four things that decide it
- What you missed. Each generation added hardware that no update can bring to an older watch: new sensors on the Pixel Watch 2, a bigger screen and Ultra-Wideband on the 3, then dual-frequency GPS and satellite SOS on the 4. Google also keeps some new software for the newer models.
- How long Google keeps updating it. Google guarantees three years of software updates from the month each watch went on sale. After that the watch keeps working, and apps from the Play Store still update, but it gets no new features or security fixes.
- How the battery has aged. Every Pixel Watch before the 4 is rated at 24 hours with the always-on display, so most owners charge it every day and add hundreds of charge cycles a year.
- What the Pixel Watch 5 adds. Cloud processing of GPS tracks, Smart Wake alarms and offline Gemini lead the list. For most owners they are the smallest part of the decision.
How long people keep a Pixel Watch
Google has launched a new Pixel Watch every autumn since 2022, so every owner is now one to four generations behind. How far back you sit says a lot about what to do.
| Your watch is | Who you probably are | What makes sense |
|---|---|---|
| One to two years old (Pixel Watch 4 or 3) | You bought recently and the watch still does what you bought it for | Stay, unless a specific feature such as dual-frequency GPS or satellite SOS matters to your training |
| Three to four years old (Pixel Watch 2 or first Pixel Watch) | Your battery has been charged more than a thousand times and updates have stopped | Move when the battery no longer lasts the day, either to the Pixel Watch 5 or to a discounted Pixel Watch 4 |
Quick planning table: upgrade now or wait?
| Your watch | On sale | Updates guaranteed until | What you missed | Verdict |
|---|---|---|---|---|
| Pixel Watch 4 | October 2025 | October 2028 | Nothing that changes how you train | Stay |
| Pixel Watch 3 | September 2024 | October 2027 | Dual-frequency GPS, satellite SOS, brighter screen, longer battery | Stay, or buy a discounted Pixel Watch 4 |
| Pixel Watch 2 | October 2023 | October 2026 (ended) | Loss of Pulse Detection, Health Guardian trends, then everything the 3 and 4 added | Stay until the battery fades |
| First Pixel Watch | October 2022 | October 2025 (ended) | Every generation since, plus Wear OS 6 and 7 | Upgrade |
What each generation added that never passed down
Add up every row below the watch you own, because that is what a new watch gives you.
| Generation | Hardware you only get by buying | Software limited to the newer watches |
|---|---|---|
| Pixel Watch 2 (2023) over the first Pixel Watch | Multi-path heart rate sensor, skin temperature sensor, skin conductance sensor for stress tracking, lighter aluminium case, faster charging | Car Crash Detection, emergency contact dialling, Irregular Rhythm Notifications, extra workout modes, Wear OS 6 and 7 |
| Pixel Watch 3 (2024) over Pixel Watch 2 | 45mm size, 2,000-nit screen with thinner bezels, bigger battery with a 36-hour Battery Saver, Ultra-Wideband for phone unlock and digital car keys | Loss of Pulse Detection, blood pressure, insulin resistance and sleep breathing quality trends, automatic detection of up to 100 activities, step-by-step workouts |
| Pixel Watch 4 (2025) over Pixel Watch 3 | Dual-frequency GPS, satellite SOS on LTE models, 3,000-nit domed screen, Snapdragon W5 Gen 2 processor, up to 40 hours of battery, 50% charge in 15 minutes, battery and screen you can replace yourself | Raise to Talk for Gemini, double-pinch gesture, Breathing Emergency Detection (EU only) |
| Pixel Watch 5 (2026) over Pixel Watch 4 | 64GB of storage and a two-year warranty | GPS reprocessing in the cloud, Smart Wake alarm, offline Gemini, strength rep tracking, Daily Readiness without a Premium subscription |
How long Google will keep updating your watch
- First Pixel Watch: updates ended in October 2025 on Wear OS 5.1, so it never received Wear OS 6 or 7.
- Pixel Watch 2: updates ended in October 2026, after Wear OS 7 arrived in June. Google’s November 2026 Pixel Drop lists Wear OS 7.1 features for the Pixel Watch 3, 4 and 5 only.
- Pixel Watch 3: guaranteed until October 2027.
- Pixel Watch 4: guaranteed until October 2028.
- Pixel Watch 5: guaranteed until October 2029.
The dates come from Google’s Pixel Watch software update policy.
How the hardware inside has aged
| Component | First Pixel Watch | Pixel Watch 2 | Pixel Watch 3 | Pixel Watch 4 | Pixel Watch 5 |
|---|---|---|---|---|---|
| Processor | Samsung Exynos 9110 | Snapdragon W5 Gen 1 | Snapdragon W5 Gen 1 | Snapdragon W5 Gen 2 | Snapdragon W5 Gen 2 |
| GPS | Single-frequency | Single-frequency | Single-frequency | Dual-frequency | Dual-frequency, with cloud reprocessing |
| Heart rate sensor | Optical | Multi-path optical | Multi-path optical | Multi-path optical | Multi-path optical |
| Peak screen brightness | 1,000 nits | 1,000 nits | 2,000 nits | 3,000 nits | 3,000 nits |
| Battery, always-on display | 24 hours | 24 hours | 24 hours | 30 hours (41mm), 40 hours (45mm) | 30 hours (41mm), 40 hours (45mm) |
- GPS is the biggest hardware step. Moving from any watch before the Pixel Watch 4 brings dual-frequency GPS, which holds a track better between tall buildings and under trees. The Pixel Watch 4 scored 83% on the5krunner’s GPS test course.
- The processor changed once. The Pixel Watch 2 and 3 share the W5 Gen 1, and the Pixel Watch 4 and 5 share the W5 Gen 2.
- Batteries wear. A first Pixel Watch charged daily since October 2022 has been through about 1,500 charges, and a Pixel Watch 2 about 1,100. If yours no longer lasts the day, that is age, and a new watch fixes it.
What the Pixel Watch 5 adds that no update can deliver
- GPS reprocessing. After a run, walk or ride, the watch’s track is corrected in the cloud using 3D building models. Google claims route accuracy twice that of earlier Pixel Watches in difficult places such as city centres.
- Smart Wake. The alarm wakes you at a light point in your sleep within a window before your set time.
- Offline Gemini. Gemini answers on the watch without a phone or data connection.
- Strength rep tracking. The watch counts reps in strength sessions, with cues for every set and rest.
- Daily Readiness without Premium and a two-year warranty, up from one year.
Google Pixel Watch 5
GPS smartwatch: 41mm, 45mm.
If you have a Pixel Watch 4
| Factor | Position |
|---|---|
| What you missed | Nothing. You own the last generation, and it already has the Health Guardian trends and Breathing Emergency Detection |
| Hardware age | One year, with the same case, screen, processor and battery life as the Pixel Watch 5 |
| Software support | On Wear OS 7, and guaranteed until October 2028 |
| Pixel Watch 5 extras | GPS reprocessing, Smart Wake, offline Gemini, strength rep tracking and a longer warranty |
- Stay if your watch does what you need, which for most owners it will. Battery and screen wear are not reasons to move, because you can replace both yourself.
- Upgrade only if you run or ride in city centres and want the most accurate GPS track a Pixel Watch can record.
Verdict: stay. The Pixel Watch 4 review has the GPS and heart rate test results.
If you have a Pixel Watch 3
| Factor | Position |
|---|---|
| What you missed | The Pixel Watch 4 hardware: dual-frequency GPS, satellite SOS, a brighter screen, longer battery life, Raise to Talk and the double-pinch gesture |
| Hardware age | Two years. Older processor and single-frequency GPS; heart rate sensor still current |
| Software support | Guaranteed until October 2027, and it is listed for the Wear OS 7.1 features |
| Pixel Watch 5 extras | Everything the Pixel Watch 4 added, plus GPS reprocessing, Smart Wake and offline Gemini |
- Stay if your watch still lasts the day and you do not need better GPS or satellite SOS. You already have Loss of Pulse Detection and the Health Guardian trends.
- Move to a discounted Pixel Watch 4 if you want dual-frequency GPS, satellite SOS on an LTE model, or a battery that lasts more than a day. It costs £249 for the Wi-Fi model in the UK, against £369 for the Pixel Watch 5.
Verdict: stay, or buy a discounted Pixel Watch 4.
If you have a Pixel Watch 2
| Factor | Position |
|---|---|
| What you missed | Loss of Pulse Detection, the Health Guardian trends, automatic detection of up to 100 activities, then the Pixel Watch 4 hardware |
| Hardware age | Three years. Older processor, single-frequency GPS, and a 24-hour battery with about 1,100 charges behind it |
| Software support | Ended in October 2026, on Wear OS 7 |
| Pixel Watch 5 extras | Everything above |
- Stay if the battery still gets you through the day. Your watch runs the current version of Wear OS, and most of what you have missed does not change how you train.
- Move if the battery no longer lasts, or if you want Loss of Pulse Detection or dual-frequency GPS. The end of updates will matter more each year, as newer software passes your watch by.
- A discounted Pixel Watch 4 gives you nearly everything the Pixel Watch 5 does for less.
Verdict: stay for now, and move when the battery fades.
If you have a first Pixel Watch
The first Pixel Watch went on sale in October 2022. Since then Google has added a multi-path heart rate sensor, skin temperature and stress sensors, Car Crash Detection, Loss of Pulse Detection, a bigger and brighter screen, dual-frequency GPS, satellite SOS and battery life beyond a day. Its updates ended in October 2025, and its battery has been through about 1,500 charges.
Verdict: upgrade. A discounted Pixel Watch 4 gives you almost everything for less, and the Pixel Watch 5 is worth the extra only for GPS reprocessing, Smart Wake or offline Gemini. Neither uses your old charger.
Battery life compared
These are Google’s figures for new watches. Your own watch will have lost some capacity with age.
| Watch | Always-on display | Battery Saver |
|---|---|---|
| First Pixel Watch | 24 hours | Not rated |
| Pixel Watch 2 | 24 hours | Not rated |
| Pixel Watch 3 (41mm and 45mm) | 24 hours | 36 hours |
| Pixel Watch 4 and 5 (41mm) | 30 hours | 48 hours |
| Pixel Watch 4 and 5 (45mm) | 40 hours | 72 hours |
A 45mm Pixel Watch 4 or 5 is the first Pixel Watch that most owners can wear for two days between charges, including overnight sleep tracking.
Considering a discounted Pixel Watch 4 instead?
The Pixel Watch 4 has the same case, screen, processor and battery life as the Pixel Watch 5, along with dual-frequency GPS, satellite SOS on LTE models and a battery and screen you can replace yourself. It is guaranteed updates until October 2028. You give up GPS reprocessing, Smart Wake, offline Gemini and the second year of warranty. For a Pixel Watch 1, 2 or 3 owner, that makes it the better-value move.
Google Pixel Watch 4
GPS smartwatch: 41mm, 45mm.
Quick answers
Should I upgrade from the Pixel Watch 4 to the Pixel Watch 5?
Usually not. The two watches share the same case, screen, processor and battery life. The Pixel Watch 5 adds GPS reprocessing in the cloud, Smart Wake alarms and offline Gemini, which are not reasons for most owners to buy again a year later.
Does the Pixel Watch 2 still get updates?
No. Google’s guaranteed update period has ended, so the Pixel Watch 2 gets no new features or security fixes. It still works, and apps from the Play Store still update.
Is the Pixel Watch 3 worth upgrading?
Only for dual-frequency GPS, satellite SOS or a battery that lasts more than a day. A discounted Pixel Watch 4 gives you all three for less than a Pixel Watch 5.
Should I replace my first Pixel Watch?
Yes. Its updates have ended, it lacks Car Crash Detection, Loss of Pulse Detection and dual-frequency GPS, and its battery is rated at only 24 hours when new.
Does the Pixel Watch 4 get the Pixel Watch 5 features?
Some of them. The Health Guardian trends and Breathing Emergency Detection run on both. GPS reprocessing, Smart Wake and offline Gemini are limited to the Pixel Watch 5.
Which Pixel Watches have Loss of Pulse Detection?
The Pixel Watch 3, 4 and 5 have Loss of Pulse Detection, in countries where regulators have approved it. The first Pixel Watch and Pixel Watch 2 do not.
Google Pixel Watch 5
GPS smartwatch: 41mm, 45mm.
For more help choosing, see all the buying guides, the Fitbit tracker upgrade guide and the Google Fitbit hub.
Explore the full resource library
This site covers endurance sport technology across a range of dedicated reference sections. Each one collects the most relevant articles, tests, and analysis on its topic in one place.
Buyer guides
- Best sports watch: tested recommendations by sport and athlete type (triathlon, running, marathon, cycling, hiking, and women)
- Best Garmin watch: Forerunner versus Fenix by series, sport, and budget
- Best wearables: fitness trackers, recovery trackers, heart rate monitors, running power meters, and female athlete tech
- Best cycling products: computers, smart trainers, indoor cycling apps, power meters, and cycling heart rate monitors
- Buying guides: every upgrade guide and product comparison in one place, by brand, for owners deciding whether to move to the newest model
- Gear I use: the watches, bikes, sensors, fuel and sleep kit tfk actually trains and races with, and what his partner uses
Brand and product guides
- Amazfit: the full Amazfit range from Balance to Cheetah to T-Rex, accuracy tests, HYROX partnership, and Zepp Health analysis
- Apple Watch: athlete-first coverage of Apple Watch across running, cycling, and triathlon
- COROS: watches, features, and firmware across the full COROS range
- Garmin: the company, the platform and the full range, and the starting point for choosing across every Garmin product line
- Garmin Edge: bike computers from entry-level navigation to flagship endurance and mountain biking
- Bike computers: Garmin, Wahoo, Hammerhead, COROS and the value brands compared
- Bryton: the Rider range compared, from basic GPS units to the S810 with maps
- Garmin Fenix: every model, feature, and firmware development for Garmin's flagship outdoor watch
- Garmin Fenix 8 Series: which variant to buy, upgrade advice, accuracy data, and the full Fenix 8 review and firmware coverage
- Garmin Forerunner: the full Forerunner line covered from entry level to triathlon flagship
- Garmin Instinct: rugged GPS watches for endurance and adventure athletes
- Garmin Features Explained: how Garmin's metrics work, from Training Load and Body Battery to Race Predictor and HRV Status
- Garmin Connect IQ charts: the most popular watch faces, apps, data fields and music services on the Connect IQ Store, updated monthly
- Google Fitbit: Fitbit Edge, Fitbit Air, Google Health, Pixel Watch and the Wear OS platform
- Magene: which Magene bike computer to buy, from the C506 to the C706, with tested verdicts
- Polar: watches, sensors, Polar Flow and training science across the full Polar range
- Runna: coach-written running plans that adapt as you train
- Suunto: Race, Vertical, Run and the SuuntoPlus ecosystem
- Strava: features, privacy, segments, and how Strava fits into a serious training setup
- Ride with GPS: route planning, navigation and how it works alongside Strava
- Wahoo: KICKR trainers, ELEMNT bike computers, and the Wahoo ecosystem
- WHOOP: strain, recovery, sleep and the full WHOOP ecosystem
Specifications database
- Full Specifications Database: detailed spec sheets, battery life, sensor lists and generation-on-generation comparisons for current Garmin, COROS, Amazfit, Samsung, Google Fitbit, Huawei, Polar, Suunto, Wahoo and Apple Watch models
Glossary
- Sports Technology Glossary: non-branded terminology across running, cycling, swimming, triathlon, hiking, strength training, HYROX, sensors, ecosystems, and brands
Sport and topic guides
- Running Watches: how to choose by discipline (road racing, trail, track, beginner, and multisport)
- Triathlon and Multisport Technology: watches, sensors, and race-day tools for swimmers, cyclists, and runners
- HYROX: training science, race analysis, and technology for the functional fitness race format
- parkrun: technology, training, and performance for the weekly 5K
- Hiking Technology: navigation, safety, and trail tech for walkers and hikers
- Heart Rate Monitoring: optical sensors, chest straps, accuracy comparisons, and how to set training zones
- Optical Sensors (PPG): the 40 things a wrist optical sensor could measure, from heart rate to glucose, ranked by evidence
- GPS Accuracy: how satellite systems perform across brands, terrains, and conditions
- Sports Watch Battery Life: battery claims, real-world tests, and how to manage battery life across Garmin, Apple, Amazfit and COROS
- Recovery Trackers: WHOOP, Oura, and the science of readiness scoring
- Muscle Oxygen Sensors: SmO2 and NIRS explained, Train Red and Moxy compared, and the category from BSX and Humon to Garmin and WHOOP
- Female Athlete Tech: wearables, physiology, and performance for female endurance athletes, covering cycle-synced training, RED-S, HR accuracy, and VO2max
- Sports Science: peer-reviewed research on HRV, VO2max, lactate threshold, running power, wearable accuracy, and supplementation
- Testing Methodology: how this site tests GPS accuracy, heart rate, battery life, and other performance claims
Content series
- Release Radar: confirmed launches, leaks, and rumours across Garmin, Apple, COROS, Polar, Suunto, and Wahoo
- Deep Dive Feature Files: weekly firmware feature updates across all brands (bug fixes excluded)
- Fix Files: weekly firmware bug fix tracking across all brands
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Ravemen FR1000: The light and the computer mount in one unit, so nothing else goes on the bars. Better than mine.
- Ravemen FR1500SE: 1,500 lumens hanging under your Garmin, for proper night rides.
- Ravemen FR1100SE: 1,100 lumens under your Garmin, and up to 46 hours on slow flash.
- Ravemen FR500: A brighter FR300 with the same mount.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Kineon MOVE+: Red and infrared light for sore knees, Achilles and other joints after hard training. I use it.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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