Samsung Gear S2 vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Samsung Galaxy Watch vs. Fitbit Flex

 
Gear S2
Forerunner 935
645 Music
Galaxy Watch
Flex
 SamsungGear S2Remove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowSamsungGalaxy WatchRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$500$450$330$100
Release20152017201820182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 daysUp to 2 weeks7 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/aNA
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360240 x 240240 x 240360 x 360NA
Size1.2 inches1.2 inches1.2 inches1.2 inches or 1.3 inchesNA
TouchNA
TypeSuper AMOLEDLCDMIPAMOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM5 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizen OSNA
Apps
MusicSpotify

All Wearables