Polar M400 vs. Garmin Vivosmart HR Plus vs. Garmin Forerunner 45 vs. Fossil Gen 5 Smartwatch Carlyle vs. Apple Watch 8

 
M400
Vivosmart HR Plus
Forerunner 45
Gen 5 Smartwatch Carlyle
Watch 8
 PolarM400Remove Buy NowGarminVivosmart HR PlusRemove Buy NowGarminForerunner 45Remove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$200$179$199$295$499
Release20142017201920192022

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days7 days1 day18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 68208 x 208328 x 328340 x 272 or 390 x 312
Sizen/a0.5 inches x 0.8 inches1.04 inches1.3 inches1.5 inches or 1.65 inches
Touch
Typen/aLCDLCDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inWear OSWatchOS 9
Apps
Music

All Wearables