Fitbit Flex 2 vs. Polar Loop 2 vs. Casio WSD-F20A vs. Pebble Core vs. Fitbit Sense 2

 
Flex 2
Loop 2
WSD-F20A
Core
Sense 2
 FitbitFlex 2Remove Buy NowPolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowPebbleCoreRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$100$120$399$99$300
Release20162015201820162022

Activity & Fitness

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

Battery

Duration5 days8 days (without notifications)1 dayNA6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320NA336x336
Sizen/an/a1.32 inchesNA1.59 inches
Touchn/aNA
TypeLEDLEDLCDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM5 ATMNA5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/an/aWear OSNA
Apps
Music

All Wearables