Garmin Forerunner 935 vs. Garmin 645 Music vs. Samsung Gear 2 vs. Garmin Vivofit 4

 
Forerunner 935
645 Music
Gear 2
Vivofit 4
 GarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowSamsungGear 2Remove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$500$450$300$79.95
Release2017201820142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

DurationUp to 2 weeks7 days2-3 days1 year
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240240 x 240320 x 32088 x 88
Size1.2 inches1.2 inches1.63 inchesNA
Touch
TypeLCDMIPSuper AMOLEDNA

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizen OS
Apps
Music

All Wearables