Fitbit Flex 2 vs. Amazfit Arc vs. Garmin 645 Music vs. Michael Kors Grayson vs. Michael Kors Grayson vs. HTC re Grip

 
Flex 2
Arc
645 Music
Grayson
Grayson
re Grip
 FitbitFlex 2Remove Buy NowAmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$100$69.99$450$350$350$199
Release201620162018201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days20 days7 days24 hours24 hours5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a72 x40240 x 240453 x 454453x454160 x 32
Sizen/a0.42 inches1.2 inches1.39 inches1.39 inches1.8 inches
Touchn/a
TypeLEDOLEDMIPAMOLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM1 ATM1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid WearNA
Apps
Music

All Wearables