Polar Loop 2 vs. ASUS ZenWatch 3 vs. Fitbit Flex vs. Jawbone UP2 vs. Apple Watch Series 4

 
Loop 2
ZenWatch 3
Flex
UP2
Watch Series 4
 PolarLoop 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowJawboneUP2Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$120$229$100$100$329
Release20152017201320152018

Activity & Fitness

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

Battery

Duration8 days (without notifications)48 hours5 days7 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400NANA384 x 480
Sizen/a1.39 inchesNANA1.78 inches
TouchNANA
TypeLEDAMOLEDLEDNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATMSplash resistantNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2NANAWatch OS 5
Apps
Music

All Wearables