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Withings Steel HR 40 mm Black

Withings Connected Watch

Discover the Withings Steel HR watch in its 40mm version.

Steel HR is the first activity tracker with heart rate monitoring to offer a long-lasting battery life of 25 days, all housed in a classic watch style perfect for transitioning from the gym to the office to a night out.

Plus stay connected with smartphone notifications that appear right on the watch screen, and enjoy the latest activity recognition features launched in Health Mate.

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Site Reference : RA_TIL050
Manufacturer Reference : NOK-HWA03-40BLK

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Shipped within 2 to 8 Days
179,95 €

Easy & Intuitive HR Monitoring

During workouts, see your heart rate at a glance. After, assess your overall performance with a personalized in-app report that delivers insights on maximum heart rate and time spent in each heart rate zone.

Day & Night, Get to the Heart of Your Matter

Heart rate is a good indicator of overall health. Steel HR automatically activates when you run, on demand, and takes readings around the clock to give a holistic view of your heart at work, at play, and at rest.

Round The Clock Activity Tracking

Steel HR is a comprehensive activity tracker that automatically recognizes walk, run, swim, and sleep and delivers in-depth reporting right to your smartphone.

And now, 10 new activities can be recognized — from ping-pong to volleyball to dancing. To experience how easy learned recognition is, log your activities in Health Mate and soon Steel HR will know and track all your moves.

On Time & In the Know

Steel HR has been designed to include a screen that shows you all the information you want at a glance, but with no compromise on style. The subtle but easy-to-read digital screen displays heart rate, number of steps, distance, calories burned, set alarm time, and smartphone alerts — all housed within a sleek watch case.

  • Heart rate tracker : Continuous HR monitoring when running and in workout mode
  • Activity companion : 10+ activities tracked via automatic and learned recognition
  • Sleep monitor : Automatic analysis of sleep cycles, wake-ups, and sleep duration, plus silent alarm
  • Personal assistant : Text, call and event alerts
  • Battery up to 25 days : Steel HR goes from the office, to the gym, to a night on the town, and boasts serious endurance — it has the longest battery life of any HR tracker on the market.
  • Water resistant to 50m : Steel HR is a heart rate monitor that can accompany you to the pool, hit the showers, and survive a downpour.
  • Automatic sleep mode : Steel HR automatically detects sleep and can wake you up gently with the silent vibrating alarm.

Technical specifications :

  • Connectivity :
    • iOS compatibility (8 or higher) : 
      • iPhone (4S and above)
      • iPod touch (5th generation or higher)
    • Android compatibility (6 or higher) :
      • Requires a Bluetooth Low Energy device
    • Battery life :
      • Up to 25 days in normal use 
      • Up to 5 days in workout mode 
      • + 20 additional days in power reserve mode (time and Activity tracking only)
    • Charging time :
      • About 1 hour to 80% 
      • About 2 hours to 100%
    • Bluetooth connectivity :
      • Bluetooth Low Energy needed.
  • Metricks Tracked : 
    • Heart rate : Beats per minute
    • Steps : Based on user's motion
    • Distance : Based on the user’s profile for high precision
    • Calories : Health Mate app widget displays active & metabolic calories, as well as the total caloric expenditure
    • Running :
      • Automatically detected
      • In-app daily recap of duration and distance
    • Swimming :
      • Automatically detected
      • Duration and calories
    • Sleep :
      • Time it takes to fall asleep
      • Duration
      • Sleep cycles (light and deep sleep)
      • Sleep interruptions
  • Device : 
    • Dimensions and weight :
      • 36mm model: 36.3mm diameter (1.4’’), 13mm thickness (0.51’’), 18mm wristband width (0.71’’), 39g (watch only) 40mm model: 39.5mm diameter (1.6’’), 13mm thickness (0.51’’), 20mm wristband width (0.79’’), 49g (watch only)
    • Conditions of use :
      • Water resistant up to 165 feet deep (50 m, 5 ATM)
      • Operating temperature: -10°C to 45°C (14°F to 113°)
      • Storage temperature: -20°C to 85°C (4°F to 185°)
    • Silent Alarm :
      • A slight vibration to wake you up at a preset time.
    • Sensors :
      • Day & Night motion sensor
      • High precision MEMS 3-axis accelerometer
      • Low power consumption




FAQ et support technique


  • Withings Steel HR 40 mm Black
  • Battery Magnetic charging cable
  • Installation guide FR/EN/DE/ES/IT
  • Free Health Mate app : To set up the alarm clock and fine tune daily activity/sleep objectives / To track up to 5 dimensions of your health - Activity, Sleep, Weight , Heart, Environment
  • Free Withings account : To securely store your data and make it readily available / Download your data at any time, free of charge
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