Apple Watch Series 3 vs. Polar M400 vs. Samsung Gear S vs. Fitbit Ionic vs. Casio G-Shock GBA800

 
Watch Series 3
M400
Gear S
Ionic
G-Shock GBA800
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowSamsungGear SRemove Buy NowFitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy Now

Basic Info

Suggested Price$329$200$250$299$120
Release20172014201320172018

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 daysn/a4+ days2 years
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a480 x 360348x250
Size1.5 inches or 1.65 inchesn/a2 inches1.42
Touch
TypeAMOLEDn/aSuper AMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIP6750m20 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aTizenFitbit OS
Apps
Music

All Wearables