Polar M400 vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. LG G Watch vs. Apple Series 6

 
M400
Watch Series 2
ZenWatch 3
G Watch
Series 6
 PolarM400Remove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowLGG WatchRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$200$269$229$230$399
Release20142016201720142020

Activity & Fitness

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

Battery

Duration8 hours to 30 days18 hours48 hours1.5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312400 x 400280 x 280384 x 480
Sizen/a1.5 inches or 1.65 inches1.39 inches1.65 inches40mm
Touch
Typen/aAMOLEDAMOLEDIPS LCDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance3 ATM5ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2Android WearWatchOS 5
Apps
Music

All Wearables