Fitbit One vs. Fitbit Zip vs. Polar Loop 2 vs. Apple Watch Series 4 vs. Fitbit Inspire 3

 
One
Zip
Loop 2
Watch Series 4
Inspire 3
 FitbitOneRemove Buy NowFitbitZipRemove Buy NowPolarLoop 2Remove Buy NowAppleWatch Series 4Remove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$100$60$120$329$100
Release20122012201520182022

Activity & Fitness

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

Battery

Duration10-14 days6 months8 days (without notifications)Not Yet10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a384 x 48032x18
Sizen/an/an/a1.78 inches46 inches
Touch
TypeOLEDn/aLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast ResistantSplash Resistant2 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWatch OS 5
Apps
Music

All Wearables