Fitbit Flex 2 vs. Apple Watch Series 2 vs. Fitbit Ionic vs. Pebble Core vs. Polar Loop

 
Flex 2
Watch Series 2
Ionic
Core
Loop
 FitbitFlex 2Remove Buy NowAppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$269$299$99$100
Release20162016201720162013

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration5 days18 hours4+ daysNA5 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a340 x 272 or 390 x 312348x250NANA
Sizen/a1.5 inches or 1.65 inches1.42NANA
Touchn/aNA
TypeLEDAMOLEDOLEDNALED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5ATM50mNA2 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aWatch OSFitbit OSNANA
Apps
Music

All Wearables