Polar M400 vs. Sony SmartBand Talk vs. Asus ZenWatch vs. Apple Watch 8

 
M400
SmartBand Talk
ZenWatch
Watch 8
 PolarM400Remove Buy NowSonySmartBand TalkRemove Buy NowAsusZenWatchRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$200$170$150$499
Release2014201420142022

Activity & Fitness

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

Battery

Duration8 hours to 30 days3 daysNA18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a296 x 128320 x 320340 x 272 or 390 x 312
Sizen/a1.4 inches1.63 inches1.5 inches or 1.65 inches
Touch
Typen/aE InkAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP68IP555 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearAndroid WearWatchOS 9
Apps
Music

All Wearables