Suunto’S D5 has all the freedive and diving features: https://www.youtube.com/watch?v=NfGqCZsyP9U
But no GPS and other sports watch features.
The simple Suunto’s Core has depth measurement up to 10m, but no GPS as well.
All other Suunto sports watches with GPS are waterproof up to 100m, but have no depth measurement or diving functions…
Looks like Garmin Descent (G1/G2) has a niche here.