Wear Radar

Fitbit ChargevsFitbit Sense

$79
price gap
Fitbit Charge cheaper
11g
lighter
Fitbit Charge
Fitbit Charge
Buy/Wait:bad

Late in cycle — a new model is likely coming

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Fitbit Sense
Buy/Wait:bad

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

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Fitbit ChargeFitbit Sense
Pricing
Starting price$120$199
Subscriptionℹ️ Optional — $79/yrℹ️ Optional — $79/yr
Hardware
Weight15g26g
Water resistance50m50m
Battery7 days6 days
Always-on display
GPS
Cellular
PlatformiOS & AndroidiOS & Android
TierFitness TrackerSmartwatch
Buy timing
ReleasedSep 28, 2023Sep 28, 2022
Cycle advicebadbad
Deals advicegreatgood
Next modelFitbit Charge 7 (Expected 2026)

Health Sensors

Fitbit Charge only
No exclusive sensors
Both
6 shared
ECGDetects irregular heart rhythms (AFib)
SpO2Blood oxygen saturation, tracked during sleep
EDA / StressSkin conductance sensor measuring stress responses
Heart RateContinuous or on-demand pulse tracking
HRVHeart rate variability — stress & recovery scores
Skin TempOvernight changes linked to illness or cycle tracking
Fitbit Sense only
No exclusive sensors

Why buy each?

Fitbit Charge

ECG and EDA stress in a slim band

Full ECG, electrodermal activity stress sensing, SpO2, and continuous heart rate in a tracker thinner than most smartwatches.

Google apps integration

Google Maps navigation, Google Wallet NFC payments, and YouTube Music controls — more useful on-device apps than any previous Charge.

7-day battery with GPS

7 days of typical use, dropping to around 30 minutes per GPS workout session before needing a charge.

Fitbit Sense

Continuous EDA stress tracking

The EDA (electrodermal activity) sensor tracks physiological stress throughout the day — a feature absent from most competitors at this price.

6 months Fitbit Premium included

Comes with Fitbit Premium for advanced sleep analysis, HRV trends, stress management scores, and personalised health insights.

6-day battery, works with iPhone

Unlike Apple Watch or Galaxy Watch, Sense 2 pairs with any smartphone and runs 6 days before charging.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Fitbit Charge wins

$357 vs $436 over 3 years · no required subscription.

For battery life
Fitbit Charge wins

7 days vs 6 days battery.

For health depth
Fitbit Charge wins

6 sensors.

For daily comfort
Fitbit Charge wins

15g · no required subscription.

Bottom Line

Technical gaps
  1. Weight. Charge is 11g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Charge is $79 cheaper upfront ($120 vs $199).
Pick the Fitbit Charge if…

Anyone who wants serious health and fitness tracking without the bulk or cost of a full smartwatch. Works with both Android and iPhone, making it the most accessible Fitbit tracker in the lineup.

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Pick the Fitbit Sense if…

Health-conscious users on any platform who want continuous stress monitoring (EDA sensor), ECG, and Fitbit's deep wellness coaching — without paying Galaxy Watch or Apple Watch prices. Particularly strong for iPhone users who want serious health tracking at under $250.

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