Garmin Forerunner 225 vs. Amazfit Bip vs. Garmin 645 Music vs. Fitbit Alta HR vs. Apple Series 6

 
Forerunner 225
Bip
645 Music
Alta HR
Series 6
 GarminForerunner 225Remove Buy NowAmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$300$99.99$450$150$399
Release20152018201820172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks30 days7 days7 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180176 x 176240 x 240128 x 36384 x 480
Size1 inch1.28 inches1.2 inches1.4 inches40mm
Touch
Typen/aNAMIPOLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATMIP685 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aWatchOS 5
Appsn/a
Musicn/a

All Wearables