Wear Radar

Fitbit AirvsFitbit Versa

$51
price gap
Fitbit Air cheaper
0.5 Hz
HR sampling
Fitbit Air only — Fitbit Versa undisclosed
26g
lighter
Fitbit Air
Fitbit Air
Buy/Wait:good

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

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Fitbit Versa
Buy/Wait:bad

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

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Fitbit AirFitbit Versa
Pricing
Starting price$99$150
Subscriptionℹ️ Optional — $99/yrℹ️ Optional — $79/yr
Hardware
Weight12g38g
Water resistance50m50m
Battery7 days6 days
Always-on display
GPS
Cellular
PlatformiOS & AndroidiOS & Android
TierFitness TrackerSmartwatch
Buy timing
ReleasedMay 7, 2026Sep 25, 2022
Cycle advicegoodbad
Deals advicegoodgood
Next model

Health Sensors

Fitbit Air only
2 exclusive sensors
Skin TempOvernight changes linked to illness or cycle tracking
Irregular RhythmBackground optical check for irregular heart rhythms
Both
3 shared
Heart RateContinuous or on-demand pulse tracking
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Fitbit Versa only
1 exclusive sensor
EDA / StressSkin conductance sensor measuring stress responses

Why buy each?

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.

Fitbit Versa

Works with Android and iPhone

Rare for a smartwatch with real GPS and health sensors to work fully on both platforms — Versa 4 does.

Google Maps and Google Wallet on wrist

Turn-by-turn navigation and NFC payments without needing your phone in hand.

6-day battery and Fitbit health coaching

Sleep stages, daily readiness score, Active Zone Minutes, and SpO2 — all on a 6-day charge.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Fitbit Versa wins

$387 vs $396 over 3 years · no required subscription.

For battery life
Fitbit Air wins

7 days vs 6 days battery.

For health depth
Fitbit Air wins

5 sensors · 0.5 Hz HR sampling.

For daily comfort
Fitbit Air wins

12g · no required subscription.

Bottom Line

Technical gaps
  1. Air-only sensors: Skin Temp, Irregular Rhythm.
  2. Versa-only sensors: EDA / Stress.
  3. Weight. Air is 26g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Air is $51 cheaper upfront ($99 vs $150).
Pick the Fitbit Air if…

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.

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Pick the Fitbit Versa if…

Android or iPhone users who want a balanced smartwatch with solid Fitbit health tracking, multi-day battery, and a clean square watch design — without the premium price of a Galaxy Watch or Apple Watch.

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