Polar M400 vs. Apple Watch vs. Garmin 645 Music vs. Misfit Flare vs. Garmin Instinct

 
M400
Watch
645 Music
Flare
Instinct
 PolarM400Remove Buy NowAppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowMisfitFlareRemove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$200$349$450$59.95$300
Release20142015201820172018

Activity & Fitness

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

Battery

Duration8 hours to 30 days18 hours7 days4 months14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312240 x 240NA128 x 128
Sizen/a1.5 inches or 1.65 inches1.2 inchesNA0.9 inches
Touch
Typen/aAMOLEDMIPLEDOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX75 ATM5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OS
Apps
Music

All Wearables