Samsung Gear S vs. Samsung Gear S2 vs. Amazfit GTR vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
Gear S
Gear S2
GTR
T-Rex
VivoActive 4
 SamsungGear SRemove Buy NowSamsungGear S2Remove Buy NowAmazfitGTRRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$250$300$199$140$349
Release20132015201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days24 days20 days8 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
Resolution480 x 360360 x 360454 x 454360 x 360260 x 260
Size2 inches1.2 inches1.39 inches1.3 inches1.3ionches
Touch
TypeSuper AMOLEDSuper AMOLEDAMOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP685 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizenBuild-inBuild-inWear OS
Apps
Music

All Wearables