ASUS ZenWatch 2 vs. Polar Loop 2 vs. Sony SmartBand 2 vs. Sony SmartBand vs. Xiaomi Mi Band 4

 
ZenWatch 2
Loop 2
SmartBand 2
SmartBand
Mi Band 4
 ASUSZenWatch 2Remove Buy NowPolarLoop 2Remove Buy NowSonySmartBand 2Remove Buy NowSonySmartBandRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$150$120$130$100$25
Release20162015201520142019

Activity & Fitness

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

Battery

Durationn/a8 days (without notifications)2 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/aNA
Resolution320 x 320n/an/aNA120x240
Size1.63 inches or 1.45 inchn/an/aNA0.95 inches
Touchn/aNA
TypeAMOLEDLEDn/aNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP672 ATMIP58IP585 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aNAAMAZFIT OS
Apps
Music

All Wearables