Shearwater offers a wide array of computer models tailored to the requirements of different styles of diving and the preferences of different divers. They publish this Shearwater Dive Computer Comparison chart PDF that compares and contrasts the differences in features and functionality.

Open circuit sport and advanced nitrox divers should consider the Peregrine and Tern models. Technical divers needing full mixed gas and/or closed-circuit capabilities should consider the Teric and Perdix models. The Petrel is Shearwater's most feature rich expedition grade model with the largest display. AMOLED displays are the most readable underwater, while Backlit LCD displays offer the best value. The NERD is a unique heads-up display model often seen in rebreather applications.