Apple Watch vs. Garmin 645 Music vs. Fitbit Charge vs. Garmin Vivosmart 3 vs. HTC re Grip

 
Watch
645 Music
Charge
Vivosmart 3
re Grip
 AppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitChargeRemove Buy NowGarminVivosmart 3Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$349$450$130$139.99$199
Release20152018201420172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days7-10 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312240 x 240NA64 x 128160 x 32
Size1.5 inches or 1.65 inches1.2 inchesNANA1.8 inches
TouchNA
TypeAMOLEDMIPOLEDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM1 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNANA
Apps
Music

All Wearables