Garmin Vivoactive HR vs. Fitbit Zip vs. Garmin 645 Music vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
Vivoactive HR
Zip
645 Music
Forerunner 45
T-Rex
 GarminVivoactive HRRemove Buy NowFitbitZipRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$60$450$199$140
Release20162012201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days6 months7 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205n/a240 x 240208 x 208360 x 360
Size1.38 inchesn/a1.2 inches1.04 inches1.3 inches
Touch
Typen/an/aMIPLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplash Resistant5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuilt-inBuild-in
Apps
Music

All Wearables