Fitbit Air
Fitness band · iOS 16.4 or higher, Android 11 or higher
- Cheapest price
- £84.99
- Subscription
- Optional
- Over 3 years
- £84.99
Prices
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What it measures
- Heart rate
- Resting heart rate
- HRV
- Sleep stages
- Deep sleep
- Blood oxygen
- Breathing rate
- Skin temperature
- Readiness score
- Steps
- ECG (no)
- Blood pressure (limited)
- Cycle tracking
As store.google.com states it.
What it does
A small screenless tracker pod (5.2 g) that clips into a textile or silicone wristband and is worn through the day and night. An optical heart rate sensor, SpO2 sensors, a temperature sensor and motion sensors feed steps, heart rate and sleep data to the Google Health app.
From the description on store.google.com.
Fitbit Air specs
- Type
- Fitness band
- Works with
- iOS 16.4 or higher, Android 11 or higher
- Battery
- Up to 7 days (maker's claim)
- Water resistance
- Water resistant to 50 m
- Size (without band)
- 34.9 x 17 x 8.3 mm
- Weight
- 5.2 g without band; 12 g with band
- Materials
- Recycled polycarbonate and PBT housing; textile band with stainless steel buckle
- Sensors
- Optical heart rate, 3-axis accelerometer + gyroscope, red and infrared (SpO2), device temperature, vibration motor
- Connectivity
- Bluetooth 5.0
- Charging time
- 90 minutes, 0 to 100%; 5 minutes gives 1 day
- Memory
- 7 days of minute-by-minute motion data, 1 day of workouts, 30 days of daily totals
- Band sizes
- Textile one size 130 to 210 mm; silicone small 130 to 175 mm, large 165 to 210 mm
- Colours
- Obsidian, Berry, Lavender, Fog
Further specs from store.google.com.
How it compares
- To buy, it is the 4th cheapest of 14 fitness bands we compare (the middle one costs £144.75).
- Over three years, subscription included, it is the 4th cheapest of 14 fitness bands.
- It measures 5 of the 8 features we compare; the middle fitness band measures 5.
- It needs no subscription; 3 of the 14 do.
Fitbit Air reviews and discussions
Reviews
- Which? review of the Fitbit Air
- TechRadar review of the Fitbit Air
- Expert Reviews review of the Fitbit Air
- Android Authority review of the Fitbit Air
Which?
- Which? review of the Fitbit Air members' content
- Which? tests of this kind of product members' content
Owners talking about it
- Question about Fitbit Air Fitbit Community
Links to other sites' reviews and discussions; we do not run them and they are not ours.
Subscription
- Google Health Premium optional: £95.88 a year (£7.99 a month).
- Adds: AI health coach, fitness plans, sleep insights, blood pressure trends; 3 months included
- Source: store.google.com
Questions
- Where is the Fitbit Air cheapest?
- EE, at £84.99 when checked on 2026-10-29.
- Does the Fitbit Air need a subscription?
- Google Health Premium optional: £95.88 a year. It adds: AI health coach, fitness plans, sleep insights, blood pressure trends; 3 months included
- What does the Fitbit Air cost over three years?
- £84.99, the price plus any required subscription.
- How does the Fitbit Air compare with other fitness bands?
- To buy, it is the 4th cheapest of 14 fitness bands we compare (the middle one costs £144.75). Over three years, subscription included, it is the 4th cheapest of 14 fitness bands. It measures 5 of the 8 features we compare; the middle fitness band measures 5.
Compare with
- 1
- 3 years
- £69.99
- Price
- £69.99
- Subscription
- None
- 2
- 3 years
- £84
- Price
- £84
- Subscription
- Optional
- 3
- 3 years
- £119
- Price
- £119
- Subscription
- Optional
Readings are not a diagnosis. If you are worried about your health, speak to your GP, pharmacist or NHS 111. How we earn.