We at Denver Divers have tried several other entry-level dive computers. We keep coming back to the Geo. The Geo 4.0 has a brand-new stylish and sporty look! It features an updated display area with larger, crisper digits, Oceanic's patented Dual Algorithm™, 5 optional color straps, and Bluetooth connectivity to all smartphones through the DiverLog+ App for the ultimate mobile experience. New and experienced divers can dive anywhere with Geo 4.0 and stay connected in style.