Garmin Vivosmart HR vs. Apple Watch Series 2 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Apple Watch 7

 
Vivosmart HR
Watch Series 2
645 Music
Alta HR
Watch 7
 GarminVivosmart HRRemove Buy NowAppleWatch Series 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$170$269$450$150$429
Release20152016201820172021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours7 days7 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68340 x 272 or 390 x 312240 x 240128 x 36396 x 484
Size1.08 inches1.5 inches or 1.65 inches1.2 inches1.4 inches1.9 inches
Touch
Typen/aAMOLEDMIPOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWatchOS 8
Apps
Music

All Wearables