Samsung Gear S3 vs. Fitbit Ionic vs. Amazfit Stratos vs. Amazfit GTR vs. Amazfit T-Rex

 
Gear S3
Ionic
Stratos
GTR
T-Rex
 SamsungGear S3Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowAmazfitGTRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$350$299$199$199$140
Release20162017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleepn/a
Steps
Swim

Battery

Duration4 days4+ days5 days24 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Color
Resolution360 x 360348x250320 x 300454 x 454360 x 360
Size1.3 inches1.421.34 inches1.39 inches1.3 inches
Touch
TypeFullcolor AODOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6850m5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenFitbit OSProprietaryBuild-inBuild-in
Apps
Music

All Wearables