Wear Radar

Apple Watch SEvsFitbit Air

Apple Watch SE
Buy/Wait:good

Early in release cycle

Best for: iPhone users who want Apple Watch's core experience — activity tracking, notifications, crash detection, and Apple Pay — at a lower price point. Ideal for kids, teens, or anyone upgrading from a much older watch without needing the advanced health sensors.

Full details →
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 →
Apple Watch SEFitbit Air
TierSmartwatchFitness Tracker
PlatformiOS onlyiOS & Android
Battery18h7 days
Always-on display
GPS
Cellular
ReleasedSep 19, 2025May 7, 2026
Cycle length1098 days
Cycle advicegoodgood
Deals adviceneutralgood
Next modelApple Watch SE 4 (Expected fall 2027)

Health Sensors

Apple Watch SE only
Irregular RhythmBackground optical check for irregular heart rhythms
Crash DetectionDetects vehicle crashes and alerts emergency contacts
Fall DetectionAuto-calls emergency services after a hard fall
Both
Heart RateContinuous or on-demand pulse tracking
Fitbit Air only
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Skin TempOvernight changes linked to illness or cycle tracking

Why buy each?

Apple Watch SE

Full watchOS at a lower price

Access the entire watchOS app ecosystem, Apple Pay, Siri, and Family Setup — for $150 less than the Series 11.

Crash and fall detection

Emergency SOS, fall detection, and Crash Detection give real safety value even without premium health sensors.

Aluminium in four colours

Available in Midnight, Starlight, Silver, and (PRODUCT)RED with a wide range of Apple Watch-compatible bands.

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.