................. If it were my kid, or my student, I would recommend a dive computer ... I would also put some effort into teaching them how to use it properly, how to interpret the data the computer is giving them, and how to prepare for the eventuality that the computer would fail at some point during a dive. ...... (Grateful Diver)
And we can help with that!
See below video of an example of online classes we are building for most of dive computers today in the market.
Alberto (aka eDiver)