Samsung Gear S2 vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Fitbit Flex vs. Fitbit Sense 2

 
Gear S2
Forerunner 935
645 Music
Flex
Sense 2
 SamsungGear S2Remove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$300$500$450$100$300
Release20152017201820132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 daysUp to 2 weeks7 days5 days6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360240 x 240240 x 240NA336x336
Size1.2 inches1.2 inches1.2 inchesNA1.59 inches
TouchNA
TypeSuper AMOLEDLCDMIPLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenNA
Apps
Music

All Wearables