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

 
Loop 2
Charge
Flex
Core
Watch Series 4
 PolarLoop 2Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$120$130$100$99$329
Release20152014201320162018

Activity & Fitness

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

Battery

Duration8 days (without notifications)7-10 days5 daysNANot Yet
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANANA384 x 480
Sizen/aNANANA1.78 inches
TouchNANANA
TypeLEDOLEDLEDNAMicroLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM1 ATMNANot Yet

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aNANANAWatch OS 5
Apps
Music

All Wearables