Polar M400 vs. Acer Liquid Leap vs. Fitbit Flex vs. Skagen Falster 2 vs. Amazfit GTS

 
M400
Liquid Leap
Flex
Falster 2
GTS
 PolarM400Remove Buy NowAcerLiquid LeapRemove Buy NowFitbitFlexRemove Buy NowSkagenFalster 2Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$200$90$100$199$150
Release20142015201320192019

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 to 7 days5 days1 day14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 32NA320 x 320348 x 442
Sizen/a1 inchNA1.19 inches1.65 inches
TouchNA
Typen/aOLEDLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX41 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSWear OS
Apps
Music

All Wearables