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

 
M400
Gear S
Ionic
G-Shock GBA800
Watch Ultra
 PolarM400Remove Buy NowSamsungGear SRemove Buy NowFitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$200$250$299$120$799
Release20142013201720182022

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a4+ days2 years36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 360348x250502x410 pixels
Sizen/a2 inches1.421.92 inches
Touch
Typen/aSuper AMOLEDOLED

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP6750m20 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenFitbit OSWatchOS 9
Apps
Music

All Wearables