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I still have some old Suunto Solutions, from the early nineties, which still work quite well and still see occasional use; though, they pre-date the wider use of nitrox, if I recall; and I also have a number of more recent computers, which allow for open or closed circuit gas switching and the choice of different dive table models.
If you're simply interested in occasional recreational diving, what you have on hand, should certainly suffice. There have been a few strides in computer development; but, like everything in the scuba and skiing world, there is that perennial economic effort to reinvent the wheel . . .
Bigbella, could you tell me what kind of device is on your screen in a middle??