Samsung Gear S vs. Fitbit Alta vs. Casio WSD-F20A vs. Garmin Forerunner 235 vs. Amazfit GTR

 
Gear S
Alta
WSD-F20A
Forerunner 235
GTR
 SamsungGear SRemove Buy NowFitbitAltaRemove Buy NowCasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$250$130$399$299.99$199
Release20132016201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days1 day9 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution480 x 360n/a320 x 320215 x 180454 x 454
Size2 inchesn/a1.32 inches1.23 inches1.39 inches
Touchn/a
TypeSuper AMOLEDOLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67n/a5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/aWear OSBuild-in
Apps
Music

All Wearables