Scuba

Back in 2017, Chinese startup Sublue successfully crowdfunded an underwater scooter known as the WhiteShark Mix. The company is now set to release a new-and-improved model, called the Mix Pro.

Although many scuba divers utilize wearable computers to track dive stats, those devices can't record an actual map of the underwater route that the user travelled. The newly-developed Brizo, however, is claimed to do exactly that.

Surface-supplied diving systems find balance between snorkelling and scuba by strapping you to an air supply floating atop the water. Typically these systems rely on compressed air, but the ExoLung uses a more sustainable air supply: you.

Although we've seen a number of personal underwater propulsion devices in recent years, the Scubajet was one of the first. Its designers have now announced a Pro model, that reportedly dives deeper, runs longer, and features a dual-hand controller.

Back in 2017, French startup Thalatoo announced the Maoi, a scuba mask-mounted head-up display (HUD) dive computer. Well, a bigger name is now throwing its hat in the ring, as California-based Scubapro has released its own product – it's called the Galileo HUD Mask-Mounted Dive Computer.

As any scuba diver knows, communicating while underwater is difficult. Although it's possible to use hand signals, you still have to get other divers' attention so that they see those signals. The Oceans S1 Supersonic dive computer is made to address that problem, using an ultrasonic comms system.

​Since at least 2004, surfers, swimmers and scuba divers have been able to buy an electronic shark-deterrent device known as the Shark Shield. Its patented technology is now being offered in a handheld speargun-like gadget, called the eSpear.

​Last year, Robosea successfully crowdfunded its fish-like BIKI underwater drone. Now, it's testing the waters again (no pun intended) with the SeaFlyer underwater scooter. Whereas BIKI was designed for remotely exploring the depths, the SeaFlyer is for people who actually want to get wet.

A couple of months ago, Geneinno successfully Kickstarted its Titan underwater drone, which users control from above the surface. Now, the company is about to crowdfund a little something for those of us who actually want to explore the underwater world in person – the Trident underwater scooter.

Archie O'Brien had a dream of zipping below the waters off Iceland. He looked at contraptions that would pull him along underwater, but everything available proved beyond his reach. So he designed and built the Cuda underwater jetpack, which will be going into production early next year.​

​While there ARE wristwatch-style dive computers, many divers prefer something with a larger screen. Unfortunately, such devices can cost over $1,000. A group of South Korean entrepreneurs is out to change that, with an inexpensive device that converts existing smartphones into dive computers.

​While it's important for scuba divers to log the stats of their dives, it's also nice if they can learn about nearby dive sites they haven't tried before. The Mazu dive tracker is designed to help them do both.