Fitbit Flex 2 vs. Garmin Vivosmart vs. Garmin 645 Music vs. Michael Kors Access Runway vs. Amazfit T-Rex

 
Flex 2
Vivosmart
645 Music
Access Runway
T-Rex
 FitbitFlex 2Remove Buy NowGarminVivosmartRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess RunwayRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$170$450$350$140
Release20162014201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days7 days1 day20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 16240 x 240390 x 390360 x 360
Sizen/a1.41 inches1.2 inches1.19 inches1.3 inches
Touchn/a
TypeLEDOLEDMIPAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSBuild-in
Apps
Music

All Wearables