Amazfit Arc vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Garmin VivoActive 4 vs. HTC re Grip

 
Arc
645 Music
Vivofit 4
VivoActive 4
re Grip
 AmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowGarminVivoActive 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$69.99$450$79.95$349$199
Release20162018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration20 days7 days1 year8 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution72 x40240 x 24088 x 88260 x 260160 x 32
Size0.42 inches1.2 inchesNA1.3ionches1.8 inches
Touch
TypeOLEDMIPNAMIPPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNA
Apps
Music

All Wearables