Samsung Gear S2 vs. Apple Watch vs. Casio WSD-F20A vs. Fitbit Alta HR vs. HTC re Grip

 
Gear S2
Watch
WSD-F20A
Alta HR
re Grip
 SamsungGear S2Remove Buy NowAppleWatchRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$300$349$399$150$199
Release20152015201820172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days18 hours1 day7 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360340 x 272 or 390 x 312320 x 320128 x 36160 x 32
Size1.2 inches1.5 inches or 1.65 inches1.32 inches1.4 inches1.8 inches
Touch
TypeSuper AMOLEDAMOLEDLCDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IPX75 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenWatch OSWear OSNA
Apps
Music

All Wearables