Software version check
Please note that this user guide is for the latest software version of Suunto D4i. If you have an older version, some features operate differently.
To check the software version:
- Keep pressed to enter settings.
- Press Version and enter with . to scroll to
- The first line of information indicates the software version.
- If the version number is V1.5.x or higher, you can skip the rest of this section and read the user guide as normal.
- If the version number is V1.2.x please read the sections below regarding how to use specific features.
- Press twice to exit settings.
When you send your watch to an authorized Suunto service center for a battery change or other servicing, the software will be updated to the latest version.
Each time you enter dive mode, you have the option of selecting which mode to use.
To change dive modes:
- While in time mode, press to enter dive mode.
- Scroll to the dive mode you want to use with or .
- Wait for the pre-checks to complete.
To change settings for a dive mode, keep
pressed while in that mode. For further information about dive mode settings, please refer to the respective dive mode section of this user guide.
Access the stopwatch in time or dive mode as explained in Stopwatch.
To use the stopwatch:
- Press to start the stopwatch.
- While the stopwatch is running, press to take split times.
- Press to stop the stopwatch.
- Keep pressed to reset the stopwatch.
Access the apnea timer and adjust settings as explained in Apnea timer.
To use the apnea timer:
- Press to start the fist interval.
- Press to start the apnea cycle.
- Press again to start the next ventilation cycle.
- Repeat until the end of the defined number of intervals. Press to pause the timer.
- Keep pressed to reset the timer and press to exit.