Apple Watch Series 3 vs. Polar M400 vs. Polar M600 vs. Pebble Time 2 vs. Xiaomi Mi Band 4

 
Watch Series 3
M400
M600
Time 2
Mi Band 4
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowPolarM600Remove Buy NowPebbleTime 2Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$329$200$330$199$25
Release20172014201620162019

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days2 days10 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a240 x 240NA120x240
Size1.5 inches or 1.65 inchesn/a1.3 inchesNA0.95 inches
Touchn/a
TypeAMOLEDn/aTFTe-paperAMOLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIPX83 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aAndroid WearPebble OSAMAZFIT OS
Apps
Music

All Wearables