Fitbit Charge 2 vs. Garmin 645 Music vs. Motorola Moto 360 (1st Gen) vs. Fitbit Flex vs. Amazfit GTR

 
Charge 2
645 Music
Moto 360 (1st Gen)
Flex
GTR
 FitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$450$150$100$199
Release20162018201420132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days1 day5 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240320 x 260NA454 x 454
Sizen/a1.2 inches1.56 inchesNA1.39 inches
Touchn/aNA
TypeOLEDMIPLCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNABuild-in
Apps
MusicNA

All Wearables