Fitbit Sense 2 smartwatchFitness~$250

Fitbit

Fitbit Sense 2

iPhone and AndroidPaid tier: Google Health Premium2 FDA-cleared features

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. Google rates it at 6+ days, several times any Wear OS watch here, but it runs Fitbit's own software with no app store, no music storage and single-band GPS.

Approx. price

~$250

maker's list price, not a live price

Battery, smartwatch mode

6 days

the maker's headline

Battery, always-on display

not published

the maker gives no figure

Battery, GPS workout

5 h

maker's figure

Works with

iPhone and Android

see the limits below

Weight

37.64 g

Google spec page 'Weight: 0.08 lb (37.64 g)'; Google does not say whether the band is included

Best for: iPhone or Android owners who want ECG and stress tracking with multi-day battery and no app ecosystem

Battery: the claim and the other two figures

Claimed (smartwatch mode)
6 days
With always-on display
not published
GPS workout
5 h
  • Headline: Google: 'Battery life of 6+ days' (6 days = 144 h).
  • GPS: Google: 'Up to 5 hours with continuous GPS' (GPS + GLONASS).
  • Google: 'Use of the always-on display, SpO2 and the cEDA sensor will require more frequent charging'; no AOD figure published

The ring’s outer track is the headline claim; the inner two are the always-on and GPS figures as a share of it. An empty track means Fitbit does not publish that figure. Why the figures differ

Phones, paid tier and updates

iPhone:
Yes.
Android:
Yes.
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: '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
Watch plus two years of Google Health Premium: ~$490.
Software updates:
Fitbit does not publish a guaranteed number of update years for this model.

Cleared health features

  • ECG app (FDA)FDA 510(k) K200948 'Fitbit ECG App', Fitbit, Inc., decision 09/11/2020; Google lists the ECG app on this model's store page Source
  • Irregular rhythm notifications (FDA)FDA 510(k) K212372 'Fitbit Irregular Rhythm Notifications', Fitbit, Inc., decision 04/08/2022; listed on this model's store page Source

A clearance says what a feature is allowed to claim, not that it replaces a doctor. Cleared versus wellness features

What the extra money buys: Against the Fitbit Versa 4, the extra ~$50 buys more cleared health features. See the Fitbit Versa 4.

Specifications

Approx. price
~$250 ($249.95 on store.google.com)
Type
Fitness
Platform
Fitbit
Case sizes
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)
Battery, smartwatch mode
6 days (Google: 'Battery life of 6+ days' (6 days = 144 h))
Battery, always-on display
Not published by the maker
Battery, GPS workout
5 h (Google: 'Up to 5 hours with continuous GPS' (GPS + GLONASS))
Battery note
Google: 'Use of the always-on display, SpO2 and the cEDA sensor will require more frequent charging'; no AOD figure published
Works with
iPhone and Android
iPhone
Yes
Android
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+'
Paid tier
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
Update years
Not published by the maker
Cleared health features
ECG app (FDA), Irregular rhythm notifications (FDA)
Display
AMOLED
Always-on display
Yes
Dual-band GPS
No
Maps
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
LTE
No LTE version
Contactless pay
Yes
Water rating
Water resistant to 50m
Case
aluminum

Features, per Fitbit

  • ECG app and irregular rhythm notifications
  • cEDA sensor for body-response (stress) tracking
  • Skin temperature variation and SpO2
  • Built-in GPS + GLONASS
  • Google Maps and Google Wallet on the wrist
  • Works with iPhone and Android

Where the specs put it ahead

  • Works with both iPhone and Android, unlike Pixel or Galaxy watches
  • 6+ day rating means charging a couple of times a week, not nightly
  • ECG and irregular rhythm alerts at a lower price than any watch with the same clearances here
  • Google Wallet payments on the wrist

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

The two lists above are drawn from the maker’s own pages and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.

What owners say

No owner discussion has been read for the Fitbit Sense 2 yet. This section stays empty until there is something real to put in it.

Others in the same part of the catalog

Fitbit Versa 4 smartwatch
Fitbit~$200

Fitbit Versa 4

Fitness · Fitbit

iPhone and AndroidPaid tier: Google Health PremiumIrregular rhythm notifications, FDA-cleared
smartwatch mode
6 days
always-on display
not published
GPS workout
not published
  • 6+ day battery
  • Works with iPhone
  • Built-in GPS

Best for: Budget buyers on either phone platform who mainly want activity, sleep and workout tracking

Garmin vívoactive 6 smartwatch
Garmin~$300

Garmin vívoactive 6

Fitness · Garmin

Android; iPhone with limitsPaid tier: Garmin Connect+
smartwatch mode
11 days
always-on display
5 days
GPS workout
21 h
  • 11-day battery
  • 5 days always-on
  • Music + Pay

Best for: A gym-goer or casual runner who wants music, payments and sleep tracking at the lowest Garmin price with both

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