The fixed blades of these free-diving fins are flexible and track straight during slow, efficient strokes as well as quick, powerful snaps. The rubber foot pockets are comfortable, and can be worn barefoot or with thin neoprene socks. The low cost makes this an attractive option for new freedivers, but it’s also ­suitable for scuba divers who like to spend time without a tank. A fully kitted diver might have to work a little harder but will find the ­Hypos has plenty of power.

The well-constructed Paragon spares no expense. The solid frame gets its toughness from three separate layers: polyurethane, metal and polycarbonate. The skirt is engineered with features that add strength and rigidity without sacrificing a soft, comfortable seal. The five-position, strap-mounted buckles are designed to keep the three-dimensional mask strap off your ears. The crystal-clear lenses are anti-reflective, UV420-treated and available in a range of corrective lenses.

The console version of the G2 features the same customizable, full-color display as the wrist computer, laid out in a vertical orientation. Navigating the vast number of features — including a digital compass, ­nitrox and trimix ­compatibility and a host of different settings — is easy thanks to the simple, three-button operation and clear menu prompts. With the help of a heart-rate monitor (sold ­separately), the G2 incorporates exertion into its calculations.