Polar M400 vs. Samsung Gear S vs. Fitbit Ionic vs. Casio G-Shock GBA800 vs. Fitbit Charge 3

 
M400
Gear S
Ionic
G-Shock GBA800
Charge 3
 PolarM400Remove Buy NowSamsungGear SRemove Buy NowFitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitCharge 3Remove Buy Now

Basic Info

Suggested Price$200$250$299$120$150
Release20142013201720182018

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a4+ days2 years7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a480 x 360348x25066 x 18
Sizen/a2 inches1.42.721 inches
Touch
Typen/aSuper AMOLEDOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP6750m20 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenFitbit OSNA
Apps
Music

All Wearables