Polar M400 vs. Polar M600 vs. Fossil Q Dreamer vs. Diesel On Full Guard vs. Apple Watch 7

 
M400
M600
Q Dreamer
On Full Guard
Watch 7
 PolarM400Remove Buy NowPolarM600Remove Buy NowFossilQ DreamerRemove Buy NowDieselOn Full GuardRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$330$125$325$429
Release20142016201520172021

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days7 days1 day18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240n/a454 x 454396 x 484
Sizen/a1.3 inchesn/a1.4 inches1.9 inches
Touchn/an/a
Typen/aTFTn/aOMOLEDMicroLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX8IP67IP67water resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/aAndroid Wear 2.0WatchOS 8
Apps
Music

All Wearables