Samsung Gear S vs. Samsung Gear S2 vs. Fitbit Alta vs. Garmin Fenix 5 vs. Amazfit T-Rex

 
Gear S
Gear S2
Alta
Fenix 5
T-Rex
 SamsungGear SRemove Buy NowSamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowGarminFenix 5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$300$130$599.99$140
Release20132015201620172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days5 days2 Weeks20 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 360n/a240 x 240360 x 360
Size2 inches1.2 inchesn/a1.2 inches1.3 inches
Touchn/a
TypeSuper AMOLEDSuper AMOLEDOLEDnaAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP68n/a10 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenTizenn/aBuild-in
Apps
Music

All Wearables