Samsung Gear S2 vs. TomTom Spark vs. Michael Kors Grayson vs. Sony SmartBand vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Gear S2
Spark
Grayson
SmartBand
Grayson
T-Rex
 SamsungGear S2Remove Buy NowTomTomSparkRemove Buy NowMichael KorsGraysonRemove Buy NowSonySmartBandRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$150$350$100$350$140
Release201520152018201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 daysn/a24 hours5 days24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/aNA
Resolution360 x 360n/a453 x 454NA453x454360 x 360
Size1.2 inchesn/a1.39 inchesNA1.39 inches1.3 inches
TouchNA
TypeSuper AMOLEDLCDAMOLEDNAAMOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM1 ATMIP581 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemTizenn/aAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables