Polar Loop 2 vs. Amazfit Stratos vs. LG Watch Urbane 2 vs. Fitbit Charge HR vs. Fitbit Flex

 
Loop 2
Stratos
Watch Urbane 2
Charge HR
Flex
 PolarLoop 2Remove Buy NowAmazfitStratosRemove Buy NowLGWatch Urbane 2Remove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$120$199$300$150$100
Release20152018201520152013

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 daysNA5 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300480 x 480NANA
Sizen/a1.34 inches1.38 inchesNANA
TouchNANA
TypeLEDOLEDP-OLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATMNA1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryAndroid WearNANA
Apps
Music

All Wearables