Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Garmin Chronos vs. Fitbit Flex vs. Amazfit T-Rex

 
Flex 2
ZenWatch 3
Chronos
Flex
T-Rex
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowGarminChronosRemove Buy NowFitbitFlexRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$229$1500$100$140
Release20162017201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours8 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400218 x 218NA360 x 360
Sizen/a1.39 inches1.2 inchesNA1.3 inches
Touchn/aNA
TypeLEDAMOLEDMIPLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM10 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Wear OSNABuild-in
Apps
Music

All Wearables