Garmin Vivoactive HR vs. Garmin 645 Music vs. LG G Watch vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex

 
Vivoactive HR
645 Music
G Watch
On Full Guard 2.5
T-Rex
 GarminVivoactive HRRemove Buy NowGarmin645 MusicRemove Buy NowLGG WatchRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$450$230$325$140
Release20162018201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days7 days1.5 days4 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205240 x 240280 x 280454x454360 x 360
Size1.38 inches1.2 inches1.65 inches1.39 inches1.3 inches
Touch
Typen/aMIPIPS LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP673 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OSBuild-in
Apps
Music

All Wearables