Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Asus VivoWatch vs. Garmin Vivofit 4 vs. Amazfit T-Rex

 
Flex 2
Forerunner 935
VivoWatch
Vivofit 4
T-Rex
 FitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowAsusVivoWatchRemove Buy NowGarminVivofit 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$500$160$79.95$140
Release20162017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks24 hours to 10 days1 year20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240128 x 12888 x 88360 x 360
Sizen/a1.2 inchesNANA1.3 inches
Touchn/a
TypeLEDLCDNANAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aKoodOSBuild-in
Apps
Music

All Wearables