Garmin Fenix 3 vs. Samsung Gear S2 vs. Amazfit Stratos vs. Garmin 645 Music vs. Fitbit Alta HR

 
Fenix 3
Gear S2
Stratos
645 Music
Alta HR
 GarminFenix 3Remove Buy NowSamsungGear S2Remove Buy NowAmazfitStratosRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$500$300$199$450$150
Release20152015201820182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration50 hours to 6 weeks2-3 days5 days7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution218 x 218360 x 360320 x 300240 x 240128 x 36
Size1.2 inches1.2 inches1.34 inches1.2 inches1.4 inches
Touch
TypeChroma LEDSuper AMOLEDOLEDMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATMIP685 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenProprietary
Apps
Music

All Wearables