Apple Watch Series 3 vs. Polar M400 vs. Pebble Time 2 vs. Apple Watch Series 4 vs. Fitbit Inspire 3

 
Watch Series 3
M400
Time 2
Watch Series 4
Inspire 3
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowPebbleTime 2Remove Buy NowAppleWatch Series 4Remove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$329$200$199$329$100
Release20172014201620182022

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days10 daysNot Yet10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/aNA384 x 48032x18
Size1.5 inches or 1.65 inchesn/aNA1.78 inches46 inches
Touch
TypeAMOLEDn/ae-paperMicroLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM3 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aPebble OSWatch OS 5
Apps
Music

All Wearables