Garmin Forerunner 225 vs. Garmin Vivofit 3 vs. Fitbit Alta HR vs. Amazfit T-Rex vs. Apple Series 6

 
Forerunner 225
Vivofit 3
Alta HR
T-Rex
Series 6
 GarminForerunner 225Remove Buy NowGarminVivofit 3Remove Buy NowFitbitAlta HRRemove Buy NowAmazfitT-RexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$300$100$150$140$399
Release20152016201720192020

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks1 year7 days20 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 18064 x 64128 x 36360 x 360384 x 480
Size1 inch0.55 inches1.4 inches1.3 inches40mm
Touch
Typen/an/aOLEDAMOLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aBuild-inWatchOS 5
Appsn/a
Musicn/a

All Wearables