Apple Watch Series 3 vs. Polar M400 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Fitbit Alta HR

 
Watch Series 3
M400
Ionic
Forerunner 935
Alta HR
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$329$200$299$500$150
Release20172014201720172017

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days4+ daysUp to 2 weeks7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a348x250240 x 240128 x 36
Size1.5 inches or 1.65 inchesn/a1.421.2 inches1.4 inches
Touch
TypeAMOLEDn/aOLEDLCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM50m5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aFitbit OS
Apps
Music

All Wearables