Apple Watch Series 3 vs. Polar M400 vs. Garmin Forerunner 45

 
Watch Series 3
M400
Forerunner 45
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$329$200$199
Release201720142019

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days7 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/a208 x 208
Size1.5 inches or 1.65 inchesn/a1.04 inches
Touch
TypeAMOLEDn/aLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aBuilt-in
Apps
Music

All Wearables