ASUS ZenWatch 2 vs. Fitbit Alta vs. Fitbit Charge vs. Polar A370 vs. Garmin Vivosmart 4

 
ZenWatch 2
Alta
Charge
A370
Vivosmart 4
 ASUSZenWatch 2Remove Buy NowFitbitAltaRemove Buy NowFitbitChargeRemove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$130$130$179.95$130
Release20162016201420172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days7-10 daysUp to 3 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/aNA160 x 8048 x 128
Size1.63 inches or 1.45 inchn/aNA1.18 inches0.74 inches
Touchn/aNA
TypeAMOLEDOLEDOLEDTFT LCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67n/a1 ATMWR305 ATM

Notifications

Phone
Emailsn/an/a
Textsn/a

Software

Operating SystemAndroid Wearn/aNA
Apps
Music

All Wearables