Wear Radar

Samsung Galaxy WatchvsFitbit Charge

7d vs 1.5d
battery life
Fitbit Charge lasts longer
$229
price gap
Fitbit Charge cheaper
14g
lighter
Fitbit Charge
4
more health sensors
Samsung Galaxy Watch
Samsung Galaxy Watch
Buy/Wait:bad

Late in cycle — a new model is likely coming

Full details →
Fitbit Charge
Buy/Wait:bad

Late in cycle — a new model is likely coming

Full details →
Samsung Galaxy WatchFitbit Charge
Pricing
Starting price$349$120
Subscription✓ Noneℹ️ Optional — $79/yr
Hardware
Weight29g15g
Water resistance5ATM50m
Battery1.5 days7 days
Always-on display
GPS
Cellular
PlatformAndroid onlyiOS & Android
TierSmartwatchFitness Tracker
Buy timing
ReleasedJul 25, 2025Sep 28, 2023
Cycle advicebadbad
Deals advicegoodgreat
Next modelGalaxy Watch 9 (Expected summer 2026)Fitbit Charge 7 (Expected 2026)

Health Sensors

Samsung Galaxy Watch only
5 exclusive sensors
Irregular RhythmBackground optical check for irregular heart rhythms
Fall DetectionAuto-calls emergency services after a hard fall
Sleep ApneaFDA-cleared detection of signs of moderate to severe sleep apnea
Blood PressureDetects hypertension patterns — trend tracking, not clinical mmHg
Body CompositionEstimates body fat & muscle mass
Both
5 shared
Heart RateContinuous or on-demand pulse tracking
ECGDetects irregular heart rhythms (AFib)
SpO2Blood oxygen saturation, tracked during sleep
Skin TempOvernight changes linked to illness or cycle tracking
HRVHeart rate variability — stress & recovery scores
Fitbit Charge only
1 exclusive sensor
EDA / StressSkin conductance sensor measuring stress responses

Why buy each?

Samsung Galaxy Watch

Best-in-class health tracking

ECG, blood pressure, body composition, SpO2, and advanced sleep coaching — all processed on-device with Galaxy AI.

Deep Samsung ecosystem integration

Answer calls, control SmartThings, and use Galaxy AI features seamlessly across Galaxy phones and tablets.

Full Wear OS with Google apps

Access Google Play, Google Maps, Google Wallet, and Samsung's polished One UI Watch 7 interface.

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.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Samsung Galaxy Watch wins

$349 vs $357 over 3 years · no required subscription.

For battery life
Fitbit Charge wins

7 days vs 1.5 days battery.

For health depth
Samsung Galaxy Watch wins

10 sensors.

For daily comfort
Fitbit Charge wins

15g · no required subscription.

Bottom Line

Technical gaps
  1. Galaxy Watch-only sensors: Irregular Rhythm, Fall Detection, Sleep Apnea, Blood Pressure, Body Composition.
  2. Charge-only sensors: EDA / Stress.
  3. Weight. Charge is 14g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Charge is $229 cheaper upfront ($120 vs $349).
Pick the Samsung Galaxy Watch if…

Android users — especially those in the Samsung ecosystem — who want a premium smartwatch with comprehensive health tracking, Wear OS flexibility, and strong software support. The Ultra suits outdoor-active users who need longer battery life.

Full details →
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.

Full details →