Shearwater is still the best dive computers out there, as far as the operation as a dive computer goes. Worth noting this doesn’t mean other dive computers, like the Garmin, are far behind. Also worth noting, the things that make a computer like a Shearwater better, may not mean anything to you, and they’ll just be unimportant features which you’d have paid a premium price for. I for example, rather use a puck computer, all I need is depth, time and NDL for recreational dives, there’s a lot of things that undoubtedly be nice, like a LED screen, say, but they won’t improve my diving, this is an argument based on how much one wants to spend on dive computer.
I said I rather use a puck because I can have it on my forearm rather than my wrist, I can read my computer much easier there than on my wrist, this means of course, I can, and use a Perdix that way on tech dives.
Although the Shearwaters are better dive computers, I think the Garmin is a much better overall product, I have the MK2s and it’s a fenomenal watch that just happens to be one of the best dive computers also. And the new MK3 you’re looking at is even better, at some point I will sell my MK2s and upgrade to the MK3i.
Your daughter is likely gonna be better suited with the smaller size Garmin than the Teric, I even prefer the 43mm version of MK3i myself, I think the 51mm and the Teric are too big, specially as an everyday watch.
And last point, the Garmin has a bungee system with their quick disconnect bands that lets you switch from rubber bands to bungee mount in seconds, super neat, which allows me to mount the computer on my preferred location, forearm, and switch right back to wrist in seconds when I’m done diving.
Help her establish good habits from the outset, and consider that she may resent being "babied".
