Fitbit Surge vs. Garmin Forerunner 225 vs. Polar M400 vs. Fitbit Ionic vs. Garmin 645 Music

 
Surge
Forerunner 225
M400
Ionic
645 Music
 FitbitSurgeRemove Buy NowGarminForerunner 225Remove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$250$300$200$299$450
Release20162015201420172018

Activity & Fitness

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

Battery

Duration7 days10 hours to 4 weeks8 hours to 30 days4+ days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a180 x 180n/a348x250240 x 240
Size1.26 inches1 inchn/a1.421.2 inches
Touch
TypeMonochrome LCDn/an/aOLEDMIP

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATM50m5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aFitbit OS
Appsn/a
Musicn/a

All Wearables