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

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

Basic Info

Suggested Price$300$500$349$450$100
Release20152017201520182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 daysUp to 2 weeks18 hours7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360240 x 240340 x 272 or 390 x 312240 x 240NA
Size1.2 inches1.2 inches1.5 inches or 1.65 inches1.2 inchesNA
TouchNA
TypeSuper AMOLEDLCDAMOLEDMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMIPX75 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenWatch OSNA
Apps
Music

All Wearables