Samsung Gear S2 vs. Fitbit Flex 2 vs. Sony SmartBand 2 vs. Fitbit Alta HR vs. Amazfit GTR

 
Gear S2
Flex 2
SmartBand 2
Alta HR
GTR
 SamsungGear S2Remove Buy NowFitbitFlex 2Remove Buy NowSonySmartBand 2Remove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$300$100$130$150$199
Release20152016201520172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days2 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/an/a
Resolution360 x 360n/an/a128 x 36454 x 454
Size1.2 inchesn/an/a1.4 inches1.39 inches
Touchn/an/a
TypeSuper AMOLEDLEDn/aOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMIP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/an/aBuild-in
Apps
Music

All Wearables