Samsung Gear S2 vs. Fitbit Flex 2 vs. Samsung Gear 2 vs. Fitbit Charge HR vs. Amazfit GTR

 
Gear S2
Flex 2
Gear 2
Charge HR
GTR
 SamsungGear S2Remove Buy NowFitbitFlex 2Remove Buy NowSamsungGear 2Remove Buy NowFitbitCharge HRRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$300$100$300$150$199
Release20152016201420152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration2-3 days5 days2-3 days5 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolution360 x 360n/a320 x 320NA454 x 454
Size1.2 inchesn/a1.63 inchesNA1.39 inches
Touchn/aNA
TypeSuper AMOLEDLEDSuper AMOLEDOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMIP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aTizen OSNABuild-in
Apps
Music

All Wearables