Apple Watch Series 3 vs. Pebble Time Steel vs. Fitbit Flex 2 vs. Pebble Core vs. Polar Loop

 
Watch Series 3
Time Steel
Flex 2
Core
Loop
 AppleWatch Series 3Remove Buy NowPebbleTime SteelRemove Buy NowFitbitFlex 2Remove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$329$250$100$99$100
Release20172015201620162013

Activity & Fitness

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

Battery

Duration18 hours10 days5 daysNA5 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/an/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312168 x 144n/aNANA
Size1.5 inches or 1.65 inches1.26 inchesn/aNANA
Touchn/aNA
TypeAMOLEDe-paperLEDNALED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATMNA2 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemWatchOS 4Pebble OSn/aNANA
Apps
Music

All Wearables