| Manufacturer | Google (Fitbit) |
|---|---|
| Type | Screenless activity tracker |
| Released | May 2026 |
| Price at launch | £84.99 / $99.99 |
| Band size | Textile/polyurethane: one size, 130mm to 210mm. Silicone: small 130mm to 175mm, large 165mm to 210mm |
| Colours | Obsidian Band with Matte Black stainless steel buckle, Berry Band with Polished Champagne Gold buckle, Lavender Band with Polished Silver buckle, Fog Band with Polished Silver buckle |
Specifications and features as at launch.
Expert opinion | How it compares | Specifications | Battery life | Features | Sensors and health features | Quick answers | Further reading
Expert opinion
The Fitbit Air delivers on its core promise as a $99 screenless tracker. The 7-day battery claim holds up in testing, a 5-minute fast charge covers a full day, and 24/7 wear genuinely goes unnoticed at 12g. The Gemini-powered Health Coach is the standout feature of the package, and steady-state heart rate tracking on the wrist is reliable for running and cycling at constant effort.
The limitations show up under load. Wrist heart rate degrades during intervals, weights and gym work, and testing found a cadence-lock failure on the treadmill. There is no screen, no on-device GPS, no manual ECG, and no bicep band at launch, the accessory that fixes the Air’s wrist accuracy problems on rival devices. It suits casual wellness buyers, existing Pixel Watch owners and first-time wearable buyers who resist subscription-only models. Serious athletes wanting training-grade data are still better served by Whoop or a proper sports watch.
Full testing, including bicep-worn accuracy and a multi-sport heart rate breakdown, is in the Fitbit Air review.
Google Fitbit Air
Activity tracker
How it compares
The Air enters the screenless tracker category alongside Whoop, Polar Loop and the Amazfit Helio Strap, plus the ring-format Oura Ring 4. It undercuts all of them on price and is the only one with no subscription requirement for core features.
| Device | Price | Subscription | Battery life | Bicep option |
|---|---|---|---|---|
| Fitbit Air | $99.99 | Optional ($99/year) | 7 days | No (at launch) |
| Whoop 5.0 | From $199/year | Mandatory, hardware included | 14 days | Yes |
| Polar Loop | $199 | None | 8 days | No |
| Amazfit Helio Strap | $99.99 | Optional ($69.99/year) | 10 days | Yes |
| Oura Ring 4 | From $349 | Mandatory ($69.99/year) | 8 days | Ring format, not applicable |
Whoop leads on battery life and its band and bicep accessory ecosystem. The Fitbit Air’s advantage is the Google Health app and the Gemini-based Health Coach, which is more developed at launch than the equivalent tools from Polar or Amazfit.
Comparisons and upgrade guides
- Google Fitbit Edge, the screen-equipped Fitbit with built-in GPS and the same heart rate hardware, at £159.99
- Fitbit Edge vs Fitbit Air: which to buy
- Fitbit tracker upgrade guide, with the Air as an alternative to the Edge
- Garmin CIRQA vs Whoop vs Polar Loop vs Fitbit Air vs Helio Strap Pro, five screenless trackers ranked
Specifications
| Physical | |
|---|---|
| Dimensions (pebble, without band) | 34.9mm (L) x 17mm (W) x 8.3mm (H) |
| Weight | 5.2g without band, 12g with band |
| Materials | Recycled polycarbonate and PBT housing, textile band with stainless steel buckle |
| Water resistance | 50 metres (5 ATM, ISO 22810:2010) |
| Sensors and positioning | |
| Positioning | None on-device. Uses connected GPS from a paired phone |
| Heart rate | Optical heart rate sensor, sampled at 2-second intervals |
| Motion | 3-axis accelerometer and gyroscope |
| Blood oxygen | Red and infrared SpO2 sensors |
| Skin temperature | Device temperature sensor, variation shown in the Google Health app |
| Other | Vibration motor. No display, no buttons, no altimeter, no NFC |
| © the5krunner. Link required. | |
| Connectivity and storage | |
| Radio | Bluetooth 5.0 |
| Sync range | Up to 30ft (9m) |
| On-device storage | 7 days of minute-by-minute motion data, 1 day of workout data, 30 days of daily totals, heart rate at 2-second intervals |
Battery life
| Mode | Battery life |
|---|---|
| Typical use | Up to 7 days |
| Full charge, 0 to 100% | 90 minutes |
| Quick charge | 5 minutes for 1 day of use |
| © the5krunner. Link required. | |
Battery type is lithium-polymer. The charger is magnetic and bidirectional, using a USB-C cable, a different format to the Pixel Watch charger. The device must come off the wrist to charge, unlike Whoop’s on-wrist battery pack.
Features
The Air pairs with the Google Health app and requires a Google account. There is no screen, so all data lives in the app; a single status LED communicates charging, low battery and firmware states through pulse patterns.
- Activity tracking covers steps, calories, distance, Cardio Load and Daily Readiness.
- Sleep tracking includes Sleep Score, sleep schedule, duration and stages, plus a Smart Wake vibration alarm timed to the optimal point in the sleep cycle.
- Health tracking covers heart rate, HRV, breathing rate and SpO2.
- Manual logging covers weight, nutrition, water intake, mood and menstrual cycles.
- Automatic detection covers running, walking, cycling, rowing and elliptical training. Roughly 40 other activity types can be started manually from the app, with more than 140 available for retrospective logging.
- Three months of Google Health Premium are included at launch, unlocking the Gemini-powered Health Coach, adaptive fitness plans and detailed sleep insights. It renews at $9.99 a month or $99 a year after the trial.
- Health Guardian features, covering blood pressure trends, insulin resistance trends and sleep breathing quality trends, are listed as coming soon and require Google Health Premium.
Sensors and health features
The Air has no manual ECG app. Instead, background AFib detection, FDA certified, monitors heart rhythm continuously and flags irregular rhythms without the wearer needing to trigger a reading, though it is not intended for users under 22 or those with other known arrhythmias. The SpO2 and skin temperature sensors are not available in all countries and are not intended for medical diagnosis.
Heart rate is sampled at 2-second intervals, but independent testing found the exported data records at roughly 5-second intervals during exercise, with a gated confidence mechanism discarding lower-confidence readings. Wrist accuracy is reliable for steady-state cardio but degrades during intervals, weights and treadmill sessions.
Quick answers
When was the Google Fitbit Air released?
Google released the Fitbit Air in May 2026. The launch price was GBP 84.99 or USD 99.99.
Is the Fitbit Air waterproof?
Fitbit Air is water resistant to 50 metres, rated 5 ATM under ISO 22810:2010.
What is the Fitbit Air battery life?
Google claims up to 7 days of typical use, and the claim held up in testing. A full charge takes 90 minutes, and a 5-minute quick charge gives a day of use.
Does the Fitbit Air need a subscription?
No, Fitbit Air has no subscription requirement for core features. Google Health Premium, with three months included, unlocks the Gemini-powered Health Coach and renews at USD 9.99 a month or USD 99 a year.
Does the Fitbit Air have GPS?
No, Fitbit Air has no on-device GPS. It uses connected GPS from a paired phone.
How much does the Fitbit Air weigh?
Fitbit Air weighs 5.2g without the band and 12g with it. The pebble measures 34.9 x 17 x 8.3mm, and the bands fit wrists from 130mm to 210mm.
Further reading
- Fitbit Air review: 31 cons, 21 pros
- Who should buy the Fitbit Air: three buyer paths
- Google Fitbit Edge specifications
- Fitbit Charge 6 specifications
- Google Fitbit specifications
- All specifications
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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