Polar A360 vs. Fitbit Ionic vs. Amazfit Stratos vs. Casio WSD-F20A

 
A360
Ionic
Stratos
WSD-F20A
 PolarA360Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$200$299$199$399
Release2015201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days4+ days5 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 80348x250320 x 300320 x 320
Size1.18 inches1.421.34 inches1.32 inches
Touch
Typen/aOLEDOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR3050m5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSProprietaryWear OS
Apps
Music

All Wearables