Amazfit Arc vs. Garmin 645 Music vs. Fitbit Alta HR vs. Apple Watch Series 5 vs. Garmin Vivosmart 4

 
Arc
645 Music
Alta HR
Watch Series 5
Vivosmart 4
 AmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 5Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$69.99$450$150$329$130
Release20162018201720192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration20 days7 days7 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution72 x40240 x 240128 x 36384 x 48048 x 128
Size0.42 inches1.2 inches1.4 inches1.78 Inches0.74 inches
Touch
TypeOLEDMIPOLEDMicroLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 5
Apps
Music

All Wearables