I have had a few computers. Most of them are now out of production so I too was recently searching for a new computer. I have had non air intigrated and air intigrated, both hosed and hoseless. I prefer the air intigrated computers, more information than just NO2 saturation. I am currently diving the Galeleo del Sol by Uwatec. This is a slightly larger wrist unit that is air intigrated and can monitor up to 4 tanks. Three of your own and one of your buddies. It will also let you select different O2 % for the three tanks and plan your gas switches. It will calculate your remaining bottom time based on the plan and readajust if you stray from the plan. It also incorprates your breathing rate and HEART rate into the algorythm.
There are a lot of features to this computer. My favorite so far is the digital compass that actually works very will. It is almost unaffected by tilt.
The batteries in both the computer and the transmitters are user replacible. I have dove this computer 20 plus times so far and it is the best one I have ever owned. I have also upgraded the firmware via the internet which went flawlessly. The latter is not available on any other model I know of. I have had to replace some of my older computers due to them being unsafe by todays standards in tec. This should not be the case with the Galeleo due to the ability to preform these updates.
The price is high but I feel it is worth it. I am not sorry I have bought this computer. So check out the Galeleo del Sol at Scubapro’s web sight.