Fitbit Alta vs. Samsung Gear Fit2 vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
Alta
Gear Fit2
Forerunner 45
T-Rex
 FitbitAltaRemove Buy NowSamsungGear Fit2Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$180$199$140
Release2016201620192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3-4 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a432 x 216208 x 208360 x 360
Sizen/a1.5 inches1.04 inches1.3 inches
Touchn/a
TypeOLEDSuper AMOLEDLCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP685 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aTizenBuilt-inBuild-in
Apps
Music

All Wearables