Garmin Vivosmart HR vs. ASUS ZenWatch 3 vs. Fitbit Flex vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Vivosmart HR
ZenWatch 3
Flex
Vivosmart 3
T-Rex
 GarminVivosmart HRRemove Buy NowASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$229$100$139.99$140
Release20152017201320172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/a

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68400 x 400NA64 x 128360 x 360
Size1.08 inches1.39 inchesNANA1.3 inches
TouchNA
Typen/aAMOLEDLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2NABuild-in
Apps
Music

All Wearables