Polar Loop 2 vs. Amazfit Bip vs. Asus VivoWatch vs. Fitbit Charge vs. Apple Watch Series 4

 
Loop 2
Bip
VivoWatch
Charge
Watch Series 4
 PolarLoop 2Remove Buy NowAmazfitBipRemove Buy NowAsusVivoWatchRemove Buy NowFitbitChargeRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$120$99.99$160$130$329
Release20152018201820142018

Activity & Fitness

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

Battery

Duration8 days (without notifications)30 days24 hours to 10 days7-10 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a176 x 176128 x 128NA384 x 480
Sizen/a1.28 inchesNANA1.78 inches
TouchNA
TypeLEDNANAOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance2 ATMIP68IP671 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aKoodOSNAWatch OS 5
Apps
Music

All Wearables