Samsung Gear S2 vs. Fitbit Flex 2 vs. Samsung Galaxy Watch vs. Garmin Forerunner 45 vs. Amazfit GTR

 
Gear S2
Flex 2
Galaxy Watch
Forerunner 45
GTR
 SamsungGear S2Remove Buy NowFitbitFlex 2Remove Buy NowSamsungGalaxy WatchRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$300$100$330$199$199
Release20152016201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days7 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/aNA
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolution360 x 360n/a360 x 360208 x 208454 x 454
Size1.2 inchesn/a1.2 inches or 1.3 inches1.04 inches1.39 inches
Touchn/a
TypeSuper AMOLEDLEDAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aTizen OSBuilt-inBuild-in
Apps
MusicSpotify

All Wearables