Polar Loop 2 vs. Withings Pulse Ox vs. Fitbit Flex vs. Garmin Vivofit 4 vs. Polar Loop

 
Loop 2
Pulse Ox
Flex
Vivofit 4
Loop
 PolarLoop 2Remove Buy NowWithingsPulse OxRemove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$120$120$100$79.95$100
Release20152014201320182013

Activity & Fitness

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

Battery

Duration8 days (without notifications)2 weeks5 days1 year5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorblue
Resolutionn/a128 x 32NA88 x 88NA
Sizen/an/aNANANA
TouchSwipeNA
TypeLEDOLEDLEDNALED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM5 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNANA
Apps
Music

All Wearables