Fitbit Alta HR vs. Fitbit Flex vs. Polar A370 vs. Huawei Band 3 Pro vs. Amazfit T-Rex

 
Alta HR
Flex
A370
Band 3 Pro
T-Rex
 FitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowHuaweiBand 3 ProRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$100$179.95$70$140
Release20172013201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 daysUp to 3 days12 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 36NA160 x 80454 x 454360 x 360
Size1.4 inchesNA1.18 inches1.39 inches1.3 inches
TouchNA
TypeOLEDLEDTFT LCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMWR30IP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAAMAZFIT OSBuild-in
Apps
Music

All Wearables