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

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

Basic Info

Suggested Price$120$269$100$99
Release2015201620132016

Activity & Fitness

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

Battery

Duration8 days (without notifications)18 hours5 daysNA
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312NANA
Sizen/a1.5 inches or 1.65 inchesNANA
TouchNANA
TypeLEDAMOLEDLEDNA

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5ATM1 ATMNA

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aWatch OSNANA
Apps
Music

All Wearables