The Aeris algorithm is pretty aggressive. I dive with an Aeris Atmos AI attached, and a Dive-Rite Nitek Plus on the wrist. The Dive-Rite is deco capable. I have seen several times where I made dives in the 80-100' range and the Dive-Rite shows a mandatory deco stop of 2 minutes at 15 feet while the Aeris still says 10 minutes of NDL remaining.