Fitbit Flex 2 vs. Garmin Forerunner 235 vs. Polar Loop vs. Apple Watch Series 4

 
Flex 2
Forerunner 235
Loop
Watch Series 4
 FitbitFlex 2Remove Buy NowGarminForerunner 235Remove Buy NowPolarLoopRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$100$299.99$100$329
Release2016201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days9 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a215 x 180NA384 x 480
Sizen/a1.23 inchesNA1.78 inches
Touchn/a
TypeLEDMIPLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM2 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatch OS 5
Apps
Music

All Wearables