Polar M400 vs. Polar V800 vs. Fitbit One vs. Fitbit Alta HR vs. Garmin Forerunner 45

 
M400
V800
One
Alta HR
Forerunner 45
 PolarM400Remove Buy NowPolarV800Remove Buy NowFitbitOneRemove Buy NowFitbitAlta HRRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$200$470$100$150$199
Release20142014201220172019

Activity & Fitness

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

Battery

Duration8 hours to 30 days13 hours to 30 days10-14 days7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a128 x 36208 x 208
Sizen/an/an/a1.4 inches1.04 inches
Touch
Typen/an/aOLEDOLEDLCD

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM3 ATMSplast Resistant5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aBuilt-in
Apps
Music

All Wearables