Fitbit One vs. Fitbit Flex vs. Polar Loop vs. Garmin VivoActive 4

 
One
Flex
Loop
VivoActive 4
 FitbitOneRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$100$100$349
Release2012201320132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days5 days5 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANA260 x 260
Sizen/aNANA1.3ionches
TouchNA
TypeOLEDLEDLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant1 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANAWear OS
Apps
Music

All Wearables