Polar M430 vs. Samsung Gear 2 vs. Fitbit Alta HR vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
M430
Gear 2
Alta HR
Forerunner 45
T-Rex
 PolarM430Remove Buy NowSamsungGear 2Remove Buy NowFitbitAlta HRRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$255$300$150$199$140
Release20172014201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration30 hours2-3 days7 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128320 x 320128 x 36208 x 208360 x 360
Size1.4 inch1.63 inches1.4 inches1.04 inches1.3 inches
Touch
TypeLCDSuper AMOLEDOLEDLCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR30IP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizen OSBuilt-inBuild-in
Apps
Music

All Wearables