Fitbit Flex 2 vs. Garmin Chronos vs. Fitbit Flex vs. Garmin Vivofit 4 vs. Amazfit T-Rex

 
Flex 2
Chronos
Flex
Vivofit 4
T-Rex
 FitbitFlex 2Remove Buy NowGarminChronosRemove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$1500$100$79.95$140
Release20162018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days8 days5 days1 year20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a218 x 218NA88 x 88360 x 360
Sizen/a1.2 inchesNANA1.3 inches
Touchn/aNA
TypeLEDMIPLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNABuild-in
Apps
Music

All Wearables