Steel HR / Steel HR Sport latest firmware supports a stopwatch and a timer, available for new watch installations.

To activate these features, perform the following steps:

1. Synchronize your watch with the Withings App.
2. Tap Devices and scroll to your Steel HR.
3. Tap Customize screens.
4. Select Stopwatch and Timer.
   

To start the stopwatch, perform the following steps:

1. Press the side button of the watch to navigate through the screens until you see the stopwatch screen.
2. Press and hold the button to start the stopwatch.
   A short press will pause the stopwatch. A long press will stop and reset it.

To start the timer, perform the following steps:

1. Press the side button of the watch to navigate through the screens until you see the timer screen.
2. Press and hold the button to activate the timer.
3. Press the button as many time as you need to set the start time. Each press corresponds to a 30-second interval.
4. Press and hold the button to start the timer.
   A short press will pause the timer. A long press will stop and reset it.