asaara:I've used both the Atmos 2 and the Uwatec (borrowed, after my Atmos 2 was stolen), and I far prefer the Atmos 2, though the Uwatec didn't kill me taking it on a couple rather deep dives. You can't change settings on the Uwatecs without the computer interface (it seems, from a friend who had one in a console and spent more time fighting with it on land than using it underwater), it doesn't show nitrogen loading, only time remaining, I'm not sure you can change how conservative you want it to be. ...
The Aladin Tec does show all those things. You can change all the settings the same way you do on the Atmos, I do it all the time.
asaara:Also, the infrared PC connection is harder to work than a cable, said friend was constantly losing the connection, and he was using the only laptop I've ever seen with a functioning infrared port, the two I've owned that had IR ports never worked, and the machine I have now doesn't have one - granted, it's a Mac, but I have VirtualPC for other stuff, and the Aeris software works just fine with the USB cable....
A problem with the IR prot could be possible I suppose, but I have never had a problem with mine. There is a usb cable with a cradle that the Aladin Tec sits in available too.
The Atmos 2 is a great computer, I have had it for 2 years, and it has worked great. The Aladin Tec has more options though, just depends on what is important to you.
If I had to only pick one, it would be the Aladin Tec for me.