Samsung Gear S vs. Fitbit Charge 2 vs. Garmin 645 Music vs. Sony SmartBand vs. Amazfit GTR

 
Gear S
Charge 2
645 Music
SmartBand
GTR
 SamsungGear SRemove Buy NowFitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowSonySmartBandRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$250$150$450$100$199
Release20132016201820142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days7 days5 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution480 x 360n/a240 x 240NA454 x 454
Size2 inchesn/a1.2 inchesNA1.39 inches
Touchn/aNA
TypeSuper AMOLEDOLEDMIPNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67n/a5 ATMIP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aNABuild-in
Apps
Music

All Wearables