Garmin Vivoactive HR vs. Fitbit One vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Amazfit T-Rex

 
Vivoactive HR
One
Forerunner 935
645 Music
T-Rex
 GarminVivoactive HRRemove Buy NowFitbitOneRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$100$500$450$140
Release20162012201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days10-14 daysUp to 2 weeks7 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 240240 x 240360 x 360
Size1.38 inchesn/a1.2 inches1.2 inches1.3 inches
Touch
Typen/aOLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables