Garmin Forerunner 225 vs. Samsung Gear S3 vs. Fitbit Alta vs. Samsung Gear 2 vs. Amazfit T-Rex

 
Forerunner 225
Gear S3
Alta
Gear 2
T-Rex
 GarminForerunner 225Remove Buy NowSamsungGear S3Remove Buy NowFitbitAltaRemove Buy NowSamsungGear 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$350$130$300$140
Release20152016201620142019

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks4 days5 days2-3 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Color
Resolution180 x 180360 x 360n/a320 x 320360 x 360
Size1 inch1.3 inchesn/a1.63 inches1.3 inches
Touchn/a
Typen/aFullcolor AODOLEDSuper AMOLEDAMOLED

Functions

Audio Speaker22Bluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP68n/aIP675 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating Systemn/aTizenn/aTizen OSBuild-in
Appsn/a
Musicn/a

All Wearables