Polar Loop 2 vs. Fitbit Charge vs. Fitbit Flex vs. Garmin Vivofit 4 vs. Pebble Core

 
Loop 2
Charge
Flex
Vivofit 4
Core
 PolarLoop 2Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowPebbleCoreRemove Buy Now

Basic Info

Suggested Price$120$130$100$79.95$99
Release20152014201320182016

Activity & Fitness

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

Battery

Duration8 days (without notifications)7-10 days5 days1 yearNA
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANA88 x 88NA
Sizen/aNANANANA
TouchNANANA
TypeLEDOLEDLEDNANA

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM1 ATM5 ATMNA

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aNANANA
Apps
Music

All Wearables