ASUS ZenWatch 2 vs. Fitbit Surge vs. Fitbit Alta vs. Fitbit Charge 2 vs. Xiaomi Mi Band 4

 
ZenWatch 2
Surge
Alta
Charge 2
Mi Band 4
 ASUSZenWatch 2Remove Buy NowFitbitSurgeRemove Buy NowFitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$150$250$130$150$25
Release20162016201620162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a7 days5 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/an/an/a120x240
Size1.63 inches or 1.45 inch1.26 inchesn/an/a0.95 inches
Touchn/an/a
TypeAMOLEDMonochrome LCDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATMn/an/a5 ATM

Notifications

Phone
Emailsn/an/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/an/aAMAZFIT OS
Apps
Music

All Wearables