Samsung Gear S2 vs. Fitbit Alta vs. Garmin Vivosmart HR Plus vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
Gear S2
Alta
Vivosmart HR Plus
Inspire HR
T-Rex
 SamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowGarminVivosmart HR PlusRemove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$130$179$99$140
Release20152016201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days5 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a160 x 68139 x 60360 x 360
Size1.2 inchesn/a0.5 inches x 0.8 inches1.4 inches1.3 inches
Touchn/a
TypeSuper AMOLEDOLEDLCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/aNAFitbit OSBuild-in
Apps
Music

All Wearables