Jump to: What’s new vs Pixel Watch | Specifications | Battery | Features | Quick answers | Further reading
Google Pixel Watch 2
Lighter aluminium Pixel Watch that adds a multi-path heart rate sensor, skin temperature and stress tracking.
Expert opinion
The Pixel Watch 2 kept the original’s look and changed what sits inside. A multi-path heart rate sensor gives steadier readings during exercise, and new sensors add skin temperature and continuous electrodermal activity, which the watch uses to flag moments of stress. Workouts gained heart rate zone and pace coaching, with reminders to start and stop recording for some activities, and Safety Check and emergency location sharing arrived with it.
The aluminium case makes it 5g lighter than the first Pixel Watch. Battery life is still rated at 24 hours with the always-on display, so daily charging remains part of owning one. Google’s guaranteed update window ended in October 2026, after the watch received Wear OS 7.
Specifications and features as at launch, with later software updates noted.
What’s new versus the first Pixel Watch
Hardware
- Recycled aluminium case in place of stainless steel, cutting the weight from 36g to 31g
- Qualcomm Snapdragon W5 Gen 1 in place of the Samsung Exynos 9110
- Multi-path optical heart rate sensor
- Continuous electrodermal activity (cEDA) sensor for stress tracking
- Skin temperature sensor
- IP68 dust and water rating alongside 5ATM
- 306mAh battery, up from 294mAh, with a full charge in about 75 minutes instead of about 110
- New USB-C fast charging cable; the first-generation charger does not fit
Software
- Wear OS 4.0 at launch
- Heart rate zone and pace coaching during workouts
- Automatic reminders to start and stop recording for selected activities
- Safety Check and emergency location sharing, plus Safety Signal on LTE models with a Fitbit Premium subscription
Specifications
Every figure comes from Google’s official Pixel Watch specifications.
| Feature | 41mm |
|---|---|
| Case diameter | 41mm (small) |
| Height | 12.3mm |
| Weight (without band) | 31g |
| Case material | 100% recycled aluminium |
| Display | 320ppi AMOLED, DCI-P3 colour, brightness boost up to 1,000 nits, always-on display, custom 3D Gorilla Glass 5 |
| Processor | Qualcomm Snapdragon W5 Gen 1 + Cortex-M33 co-processor |
| Storage and memory | 32GB eMMC, 2GB SDRAM |
| OS | Wear OS 4.0 at launch, updated to Wear OS 7 in June 2026 |
| GPS | GPS, GLONASS, BeiDou, Galileo, QZSS |
| Connectivity | Bluetooth 5.0, Wi-Fi 802.11 b/g/n (2.4GHz), NFC, 4G LTE (LTE model) |
| Sensors | Multi-path optical heart rate, ECG, blood oxygen (red and infrared), cEDA skin conductance, skin temperature, barometer, altimeter, compass, magnetometer, accelerometer, gyroscope, ambient light |
| Interaction | Side button, haptic crown, premium haptics |
| Audio | Microphone, speaker |
| Water resistance | 5ATM, IP68 |
| Band (included) | Active band, fluoroelastomer, small and large sizes |
| Band fit | Small 130-175mm, large 165-210mm |
| Android compatibility | Android 9.0 or newer (not Android Go, no iPhone) |
| Warranty | Two years (UK, EEA, Switzerland, Australia), one year (US, Canada, Japan, Taiwan) |
| Software support | Guaranteed updates ended October 2026 |
| © the5krunner. Link required. | |
| In box | Watch, Active band (small and large), USB-C fast charging cable |
| Announced | 4 October 2023 |
| On sale | 12 October 2023 |
| Predecessor | Pixel Watch (1st Gen) (October 2022) |
| Successor | Pixel Watch 3 (September 2024) |
| UK price at launch (Wi-Fi / LTE) | £349 / £399 |
| US price at launch (Wi-Fi / LTE) | $349 / $399 |
Battery life
| Mode | 41mm |
|---|---|
| Always-on display | Up to 24 hours |
| Capacity | 306mAh |
| Charge to 50% | ~30 minutes |
| Charge to 80% | ~43 minutes |
| Charge to 100% | ~75 minutes |
| © the5krunner. Link required. | |
Key features
Heart rate and stress
The multi-path optical sensor reads heart rate through more LEDs and photodiodes than the first Pixel Watch, which helps it hold a signal during exercise. The cEDA sensor measures skin conductance to log body responses that may point to stress, and the watch prompts a check-in when it spots one.
Training
Heart rate zone coaching vibrates when an effort drifts out of the chosen zone, and pace coaching does the same for running speed. Active Zone Minutes, Sleep Score and Daily Readiness come through Google’s health app, formerly Fitbit, with Readiness and deeper trends on a Premium subscription.
Safety
Safety Check sends the wearer’s location to emergency contacts if they do not respond after a set time, and emergency location sharing works with or without a phone on LTE models. Fall detection and Emergency SOS carry over from the first Pixel Watch.
Workouts
The Pixel Watch 2 offers 40 workout modes, including extra modes the first Pixel Watch does not get, and reminds you to start or stop a workout automatically for seven exercises.
Health and sleep
The ECG app checks for signs of atrial fibrillation, Irregular Rhythm Notifications flag an uneven heartbeat in the background, and high and low heart rate alerts warn you about unusual readings. Blood oxygen tracking is available where Google has approved it. A skin temperature sensor records changes while you sleep, and Sleep Score, sleep stages and Bedtime mode with wind-down reminders cover the night. Calorie tracking is included, and Daily Readiness comes with a Premium subscription.
More safety features
Car Crash Detection uses location and motion sensors to spot a severe crash and calls emergency services. You can call an emergency contact straight from the watch, and Medical Info lets people see your medical details in an emergency even when the watch is locked. Car Crash Detection does not work in airplane mode or with Battery Saver on.
Smart features
Google Assistant has its own tile for shortcuts. Wear OS 4 brought smarter notifications, watch transfer to a new phone, and backup and restore. Gmail, Google Calendar, YouTube Music podcasts, Google Maps nearby places, Find My Phone and audio switching to headphones are built in, and apps such as AllTrails, Audible and WhatsApp install from the Play Store. Bold text and improved text to speech help with accessibility, and six new watch face families arrived with this model. Google says Gemini is rolling out to Wear OS 4 and later watches. It does not name individual Pixel Watches, so check the Gemini app on your watch.
What the Pixel Watch 3 adds
The Pixel Watch 3 adds Loss of Pulse Detection, Workout Builder, Form Analysis, Cardio Load, Target Load and Morning Brief. Blood pressure trends, insulin resistance trends and sleep breathing quality trends went live on 24 September 2026, and they are limited to the Pixel Watch 3 and later.
Software support
The watch launched on Wear OS 4.0 and received Wear OS 5, 6 and 7, the last in June 2026. Google’s guaranteed update window ended in October 2026.
Google Pixel Watch 2
Lighter aluminium Pixel Watch that adds a multi-path heart rate sensor, skin temperature and stress tracking.
Quick answers
When was the Google Pixel Watch 2 released?
Google announced the Pixel Watch 2 on 4 October 2023, and it went on sale on 12 October 2023. Launch prices were GBP 349 or USD 349 for the Wi-Fi model and GBP 399 or USD 399 for the LTE model.
Is the Pixel Watch 2 waterproof?
The Pixel Watch 2 has a 5ATM water rating and an IP68 dust and water rating, so it can be worn swimming in a pool.
What size is the Pixel Watch 2?
It came in one size, 41mm across and 12.3mm high, and weighs 31g without the band.
What is the Pixel Watch 2 battery life?
Google quotes up to 24 hours with the always-on display. A full charge takes about 75 minutes.
Does the Pixel Watch 2 still get updates?
The Pixel Watch 2 received Wear OS 7 in June 2026. Google’s guaranteed update window ended in October 2026.
Does the Pixel Watch 2 use the same charger as the first Pixel Watch?
No, the Pixel Watch 2 uses a new USB-C fast charging cable, and the first-generation charger does not fit it.
Further reading
- Pixel Watch (1st Gen) specifications: the predecessor
- Pixel Watch 3 specifications: the successor
- Pixel Watch 4 specifications
- Google Pixel Watch 4 review: GPS and heart rate accuracy data, sleep comparison and Gemini
- Google Fitbit specifications: every Pixel Watch and Fitbit model
- Pixel Watch upgrade guide: whether to move to a newer Pixel Watch
- Google Fitbit and Wear OS 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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