Samsung Gear S2 vs. TomTom Adventurer vs. Casio WSD-F20A vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Gear S2
Adventurer
WSD-F20A
Vivosmart 3
T-Rex
 SamsungGear S2Remove Buy NowTomTomAdventurerRemove Buy NowCasioWSD-F20ARemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$350$399$139.99$140
Release20152016201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 daysn/a1 day5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a320 x 32064 x 128360 x 360
Size1.2 inchesn/a1.32 inchesNA1.3 inches
Touch
TypeSuper AMOLEDn/aLCDOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemTizenn/aWear OSBuild-in
Apps
Music

All Wearables