Polar Loop 2 vs. Withings Go vs. Fitbit Flex vs. Pebble Core vs. Apple Watch 7

 
Loop 2
Go
Flex
Core
Watch 7
 PolarLoop 2Remove Buy NowWithingsGoRemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$120$80$100$99$429
Release20152016201320162021

Activity & Fitness

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

Battery

Duration8 days (without notifications)8 months5 daysNA18 Hours
Rechargeable

Compatibility

Androidn/a
iOSn/aNA
Windows Phonen/an/aNANA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/aNANA396 x 484
Sizen/an/aNANA1.9 inches
Touchn/aNANA
TypeLEDE-InkLEDNAMicroLED

Functions

Audio Speaker
Clock
Phonen/aNA
Vibrationn/aNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM1 ATMNAwater resistant but not waterproof

Notifications

Phonen/aNA
Emailsn/aNA
Textsn/aNA

Software

Operating Systemn/an/aNANAWatchOS 8
Appsn/a
Music

All Wearables