Polar V800 vs. Amazfit Stratos vs. LG Watch Urbane 2 vs. Fitbit Flex vs. Xiaomi Mi Band 4

 
V800
Stratos
Watch Urbane 2
Flex
Mi Band 4
 PolarV800Remove Buy NowAmazfitStratosRemove Buy NowLGWatch Urbane 2Remove Buy NowFitbitFlexRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$470$199$300$100$25
Release20142018201520132019

Activity & Fitness

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

Battery

Duration13 hours to 30 days5 daysNA5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300480 x 480NA120x240
Sizen/a1.34 inches1.38 inchesNA0.95 inches
TouchNA
Typen/aOLEDP-OLEDLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMNA1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryAndroid WearNAAMAZFIT OS
Apps
Music

All Wearables