I use the Aeris Atmos air integrated hose computer. I’ve had it for 3 years and only had to replace the battery once. I go diving with it about 100 times a year. It takes a great beating (I use it while teaching students also) and it’s works great. I don’t own a wrist computer. I’m waiting for some new technology to read my pulse, blood oxygen level, cholestorol, age, weight and everything...talk about the perfect dive computer...anyone want to invent that for me?