Amazfit Arc vs. Casio WSD-F20A vs. Michael Kors Access Sofie vs. Fitbit Alta HR vs. Fitbit Charge HR

 
Arc
WSD-F20A
Access Sofie
Alta HR
Charge HR
 AmazfitArcRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge HRRemove Buy Now

Basic Info

Suggested Price$69.99$399$395$150$150
Release20162018201720172015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration20 days1 day1 day7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution72 x40320 x 320390 x 390 1.19 inches128 x 36NA
Size0.42 inches1.32 inches1.4 inchesNA
TouchAMOLDEDNA
TypeOLEDLCDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSAndroid Wear 2.0NA
Apps
Music

All Wearables