Wear Radar

Xiaomi WatchvsFitbit Air

Xiaomi Watch
Buy/Wait:good

Current model just released

Best for: Android users who want a full-featured Wear OS smartwatch — ECG, eSIM, a large bright screen — at a price well below Samsung and Google competitors. A natural pairing with Xiaomi phones but fully compatible with any Android device.

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Fitbit Air
Buy/Wait:good

First-generation product — no historical cycle data to predict a successor

Best for: Health-focused users who want passive, 24/7 biometric tracking without a screen on their wrist. Particularly strong for those drawn to WHOOP but put off by the subscription model — the Fitbit Air delivers comparable core health data for $99 outright. Works with both iOS and Android.

Full details →
Xiaomi WatchFitbit Air
TierSmartwatchFitness Tracker
PlatformAndroid onlyiOS & Android
Battery6 days7 days
Always-on display
GPS
Cellular
ReleasedFeb 28, 2026May 7, 2026
Cycle length365 days
Cycle advicegoodgood
Deals adviceneutralgood
Next model

Health Sensors

Xiaomi Watch only
ECGDetects irregular heart rhythms (AFib)
Both
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Skin TempOvernight changes linked to illness or cycle tracking
Heart RateContinuous or on-demand pulse tracking
Fitbit Air only

Why buy each?

Xiaomi Watch

6-day battery on Wear OS

Dual-chip design keeps the main Snapdragon W5 dormant during light tasks, dramatically extending battery life beyond any rival Wear OS watch.

Wear OS 6 with ECG and eSIM

First Wear OS 6 device on the market — with ECG monitoring, EMG gesture control, and eSIM for standalone calling.

1.54" AMOLED at a competitive price

Larger and brighter display than Galaxy Watch 8 or Pixel Watch 4, with Hasselblad-tuned health sensors, starting at around $285.

Fitbit Air

$99 with no subscription

Unlike WHOOP, there is no mandatory membership — pay $99 once and use Fitbit Air with the free Google Health app. Google Health Premium ($9.99/month) is optional.

24/7 health monitoring in 12 grams

Continuous heart rate, SpO2, HRV, and skin temperature tracking plus background FDA-certified AFib detection, in a 12g pebble designed to be worn and forgotten.

7-day battery with 5-minute fast charge

A week between charges, with a 5-minute top-up delivering a full day of use — significantly less downtime than WHOOP's slide-on charging system.