Fitbit Surge vs. ASUS ZenWatch 3 vs. Fitbit Alta HR vs. Polar A370 vs. Amazfit T-Rex

 
Surge
ZenWatch 3
Alta HR
A370
T-Rex
 FitbitSurgeRemove Buy NowASUSZenWatch 3Remove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$229$150$179.95$140
Release20162017201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days48 hours7 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400128 x 36160 x 80360 x 360
Size1.26 inches1.39 inches1.4 inches1.18 inches1.3 inches
Touch
TypeMonochrome LCDAMOLEDOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Build-in
Apps
Music

All Wearables