Polar M400 vs. Apple Watch Series 2 vs. Garmin 645 Music vs. Pebble Core vs. Huawei Band 3 Pro

 
M400
Watch Series 2
645 Music
Core
Band 3 Pro
 PolarM400Remove Buy NowAppleWatch Series 2Remove Buy NowGarmin645 MusicRemove Buy NowPebbleCoreRemove Buy NowHuaweiBand 3 ProRemove Buy Now

Basic Info

Suggested Price$200$269$450$99$70
Release20142016201820162018

Activity & Fitness

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

Battery

Duration8 hours to 30 days18 hours7 daysNA12 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312240 x 240NA454 x 454
Sizen/a1.5 inches or 1.65 inches1.2 inchesNA1.39 inches
TouchNA
Typen/aAMOLEDMIPNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5ATM5 ATMNAIP68

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aWatch OSNAAMAZFIT OS
Apps
Music

All Wearables