Very happy with this computer. My previous dive CPU is now retired and due for an upgrade. After much thought I decided to go with the Mk3i 43mm. It is a perfect everyday fitness watch and dive computer all in one. For fitness tracking, it is far more advanced than what my Apple Watch offers. Specifically, you can customise your workouts between sets and reps, whereas, the Apple Watch offers just an open-workout plan. Takes some time getting used to but once you use it, you see the the major difference. I have yet to test this for diving but will be doing so next week, however, the features far outweigh my previous Suunto DX. The brightness and clarity of the screen are amazing. I also opted for this model vs the Suunto Ocean as it has a much smaller and slimmer profile which is essential if wearing this as an everyday watch.