Polar Loop 2 vs. Casio WSD-F20A vs. Fitbit Flex vs. Pebble Core vs. Apple Watch 8

 
Loop 2
WSD-F20A
Flex
Core
Watch 8
 PolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$120$399$100$99$499
Release20152018201320162022

Activity & Fitness

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

Battery

Duration8 days (without notifications)1 day5 daysNA18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NANA340 x 272 or 390 x 312
Sizen/a1.32 inchesNANA1.5 inches or 1.65 inches
TouchNANA
TypeLEDLCDLEDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM1 ATMNA5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aWear OSNANAWatchOS 9
Apps
Music

All Wearables