Fitbit Blaze vs. Polar M400 vs. Amazfit Cor vs. Garmin 645 Music vs. Apple Watch 7

 
Blaze
M400
Cor
645 Music
Watch 7
 FitbitBlazeRemove Buy NowPolarM400Remove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$200$79.99$450$429
Release20162014201820182021

Activity & Fitness

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

Battery

Duration5 Days8 hours to 30 days12 days7 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialn/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a80 x 160240 x 240396 x 484
Sizen/an/a1.23 inches1.2 inches1.9 inches
Touch
TypeLCDn/aIPS LCDMIPMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a3 ATM5 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatchOS 8
Apps
Music

All Wearables