Fitbit Sense 2 vs Fitbit Versa 4
The Fitbit Sense 2 lists for about $50 more than the Fitbit Versa 4. Every other published figure for both is in the table, with the rows where they differ tinted.

Fitbit
Fitbit Sense 2
iPhone and AndroidPaid tier: Google Health Premium
~$250
Fitbit's health-focused watch adds an ECG app and a cEDA skin-conductance sensor for body-response tracking to the Versa 4's design.
Best for: iPhone or Android owners who want ECG and stress tracking with multi-day battery and no app ecosystem

Fitbit
Fitbit Versa 4
iPhone and AndroidPaid tier: Google Health Premium
~$200
Google's cheapest Fitbit smartwatch drops the Sense 2's ECG app and cEDA stress sensor but keeps its case, display, built-in GPS and 6+ day rating.
Best for: Budget buyers on either phone platform who mainly want activity, sleep and workout tracking
| Specification | Fitbit Sense 2 | Fitbit Versa 4 |
|---|---|---|
| Approx. price | ~$250 ($249.95 on store.google.com) | ~$200 ($199.95 on store.google.com) |
| Type | Fitness | Fitness |
| Platform | Fitbit | Fitbit |
| Case sizes | 40.5 mm | 40.5 mm |
| Weight | 40.5 mm: 37.64 g (Google spec page 'Weight: 0.08 lb (37.64 g)'; Google does not say whether the band is included) | 40.5 mm: 37.64 g (Google spec page 'Weight: 0.08 lb (37.64 g)'; Google does not say whether the band is included) |
| Battery, smartwatch mode | 6 days (Google: 'Battery life of 6+ days' (6 days = 144 h)) | 6 days (Google: 'Battery life of 6+ days' (6 days = 144 h)) |
| Battery, always-on display | Not published by the maker | Not published by the maker |
| Battery, GPS workout | 5 h (Google: 'Up to 5 hours with continuous GPS' (GPS + GLONASS)) | Not published by the maker |
| Battery note | Google: 'Use of the always-on display, SpO2 and the cEDA sensor will require more frequent charging'; no AOD figure published | Google publishes no GPS or AOD figure for Versa 4; charge time 0-100% about two hours |
| Works with | iPhone and Android | iPhone and Android |
| iPhone | Yes | Yes |
| Android | Yes | Yes |
| Phone limits | Google: works with Apple iOS 16.4+ and Android 11+ through the Google Health app; 'Certain features like smartphone notifications may require Android 11+' | Google: works with Apple iOS 16.4+ and Android 11+ through the Google Health app; 'Certain features like smartphone notifications may require Android 11+' |
| Paid tier | Google Health Premium, $119.88/year | Google Health Premium, $119.88/year |
| What the paid tier gates | Google: 'Most workouts require a Google Health Premium membership', 'Most [mindfulness] sessions require a Premium membership', Stress Management Score 'Detailed score breakdown available with Premium', plus Gemini coaching | Google: 'Most workouts require a Google Health Premium membership', 'Most [mindfulness] sessions require a Premium membership', Stress Management Score 'Detailed score breakdown available with Premium', plus Gemini coaching |
| Update years | Not published by the maker | Not published by the maker |
| Cleared health features | ECG app (FDA), Irregular rhythm notifications (FDA) | Irregular rhythm notifications (FDA) |
| Display | AMOLED | AMOLED |
| Always-on display | Yes | Yes |
| Dual-band GPS | No | No |
| Maps | No maps (Google Maps gives turn-by-turn directions on the wrist with a paired phone; no maps stored on the watch) | No maps (Google Maps gives turn-by-turn directions on the wrist with a paired phone; no maps stored on the watch) |
| Music on the watch | No | No |
| LTE | No LTE version | No LTE version |
| Contactless pay | Yes | Yes |
| Water rating | Water resistant to 50m | Water resistant to 50m |
| Case | aluminum | aluminum |
Fitbit Sense 2: what it gives up
- No third-party app store and no music storage
- Single-band GPS with only a 5-hour continuous figure
- Most guided workouts and mindfulness content need Google Health Premium at $9.99 a month
- Battery drops with always-on display, SpO2 and cEDA, and Google gives no figure for that
- Google publishes no software-update commitment
Fitbit Versa 4: what it gives up
- No ECG app, which the Sense 2 has for a small step up
- No app store, no music storage
- No published GPS battery figure
- Most workout and mindfulness content needs Google Health Premium at $9.99 a month
Full pages: Fitbit Sense 2 · Fitbit Versa 4