Polar Loop 2 vs. Withings Pulse Ox vs. Amazfit Stratos vs. Polar Loop vs. Garmin Forerunner 45

 
Loop 2
Pulse Ox
Stratos
Loop
Forerunner 45
 PolarLoop 2Remove Buy NowWithingsPulse OxRemove Buy NowAmazfitStratosRemove Buy NowPolarLoopRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$120$120$199$100$199
Release20152014201820132019

Activity & Fitness

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

Battery

Duration8 days (without notifications)2 weeks5 days5 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorblue
Resolutionn/a128 x 32320 x 300NA208 x 208
Sizen/an/a1.34 inchesNA1.04 inches
TouchSwipe
TypeLEDOLEDOLEDLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aProprietaryNABuilt-in
Apps
Music

All Wearables