Apple Watch Series 3 vs. Polar M400 vs. Fitbit Ionic vs. Amazfit Pace vs. Amazfit Stratos

 
Watch Series 3
M400
Ionic
Pace
Stratos
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowAmazfitPaceRemove Buy NowAmazfitStratosRemove Buy Now

Basic Info

Suggested Price$329$200$299$130$199
Release20172014201720172018

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days4+ days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a348x250320 x 300320 x 300
Size1.5 inches or 1.65 inchesn/a1.421.34 inches1.34 inches
Touch
TypeAMOLEDn/aOLEDTFT LCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM50mIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aFitbit OSProprietaryProprietary
Apps
Music

All Wearables