Fitbit Flex 2 vs. Samsung Galaxy Watch vs. Fitbit Charge vs. Fitbit Flex vs. Amazfit GTR

 
Flex 2
Galaxy Watch
Charge
Flex
GTR
 FitbitFlex 2Remove Buy NowSamsungGalaxy WatchRemove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$330$130$100$199
Release20162018201420132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days7-10 days5 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Mac
Windows

Connectivity

Bluetooth
CellularNA
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a360 x 360NANA454 x 454
Sizen/a1.2 inches or 1.3 inchesNANA1.39 inches
Touchn/aNANA
TypeLEDAMOLEDOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizen OSNANABuild-in
Apps
MusicSpotify

All Wearables