Polar Loop 2 vs. Apple Watch vs. Fitbit Versa vs. Pebble Core vs. Apple Watch Series 4

 
Loop 2
Watch
Versa
Core
Watch Series 4
 PolarLoop 2Remove Buy NowAppleWatchRemove Buy NowFitbitVersaRemove Buy NowPebbleCoreRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$120$349$199.99$99$329
Release20152015201820162018

Activity & Fitness

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

Battery

Duration8 days (without notifications)18 hours4 daysNANot Yet
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312300 x300NA384 x 480
Sizen/a1.5 inches or 1.65 inches1.34 inchesNA1.78 inches
TouchNA
TypeLEDAMOLEDOLEDNAMicroLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIPX75 ATMNANot Yet

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aWatch OSNAWatch OS 5
Apps
Music

All Wearables