Fitbit Alta vs. Polar A360 vs. Fitbit Charge HR vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Alta
A360
Charge HR
Vivosmart 4
T-Rex
 FitbitAltaRemove Buy NowPolarA360Remove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$200$150$130$140
Release20162015201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days5 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 80NA48 x 128360 x 360
Sizen/a1.18 inchesNA0.74 inches1.3 inches
Touchn/aNA
TypeOLEDn/aOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aWR301 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aNABuild-in
Apps
Music

All Wearables