ASUS ZenWatch 2 vs. Polar M400 vs. Swatch Touch Zero One vs. Xiaomi Mi Band 4

 
ZenWatch 2
M400
Touch Zero One
Mi Band 4
 ASUSZenWatch 2Remove Buy NowPolarM400Remove Buy NowSwatchTouch Zero OneRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$150$200$220$25
Release2016201420152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleepn/a
Steps
Swimn/a

Battery

Durationn/a8 hours to 30 daysn/a20 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/an/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/an/a120x240
Size1.63 inches or 1.45 inchn/an/a0.95 inches
Touch
TypeAMOLEDn/an/aAMOLED

Functions

Audio SpeakerAlerts onlyn/a
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water ResistanceIP673 ATM5 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/an/a

Software

Operating SystemAndroid Wearn/an/aAMAZFIT OS
Apps
Musicn/a

All Wearables