Garmin Vivosmart vs. Garmin Vivosmart HR vs. Apple Watch Series 2 vs. Casio WSD-F20A vs. Amazfit T-Rex

 
Vivosmart
Vivosmart HR
Watch Series 2
WSD-F20A
T-Rex
 GarminVivosmartRemove Buy NowGarminVivosmart HRRemove Buy NowAppleWatch Series 2Remove Buy NowCasioWSD-F20ARemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$170$269$399$140
Release20142015201620182019

Activity & Fitness

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

Battery

Duration7 days5 days18 hours1 day20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 16160 x 68340 x 272 or 390 x 312320 x 320360 x 360
Size1.41 inches1.08 inches1.5 inches or 1.65 inches1.32 inches1.3 inches
Touch
TypeOLEDn/aAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OSWear OSBuild-in
Apps
Music

All Wearables