Specifications for Google Pixel Watch and Fitbit hardware. Each page carries the full manufacturer specification, battery data, features and activity profiles, alongside an assessment of who the device suits.
Pixel Watch
- Google Pixel Watch 5: Wear OS 7.0, cloud GPS post-processing, Health Guardian, workout builder. Announced 12 August 2026.
- Google Pixel Watch 4: Wear OS 6.0, dual-frequency GNSS, satellite SOS, user-replaceable battery. Announced 20 August 2025.
- Google Pixel Watch 3: Second 45mm size, 2,000-nit screen, Cardio Load and Loss of Pulse Detection. Announced 13 August 2024.
- Google Pixel Watch 2: Aluminium case, multi-path heart rate, skin temperature and stress sensors. Announced 4 October 2023.
- Google Pixel Watch (1st Gen): The first Pixel Watch, with Fitbit tracking in a stainless steel case. Updates ended October 2025. Announced 6 October 2022.
Fitbit
- Google Fitbit Edge: Charge 6 successor with a 1.34in AMOLED display, multi-system GPS, altimeter and user-replaceable battery. No NFC. Announced 12 October 2026.
- Fitbit Charge 6: SpO2, skin temperature, ECG and EDA sensors, with a machine-learning heart rate algorithm adapted from Pixel Watch. Released October 2023.
- Fitbit Versa 4: Smartwatch with built-in GPS, Amazon Alexa, Google Wallet and Google Maps. Released September 2022.
- Fitbit Sense 2: Continuous EDA (cEDA) stress sensor, ECG app, altimeter and Wi-Fi hardware, disabled. Released September 2022.
- Fitbit Air: Screenless activity tracker with no display, connected GPS only, and background AFib detection. Released May 2026.
Related
- Google Fitbit and Wear OS hub: the full editorial cluster covering Fitbit Air, Google Health, Pixel Watch and the Wear OS platform
- All specifications: every brand and model on this site
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin with any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafing 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 arches, perfect position. 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.
Health, recovery and sleep
- Kineon MOVE+: Red and infrared light for sore knees, Achilles and other joints after hard training. I use it.
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet. Occasional use.
- hDrop: Measures my sweat loss in summer and indoors. I use it.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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. Occasional use.
- 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.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions. I use both.
- 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 via Starling. I use it.
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