CudaJet has made soaring through the seas as simple as putting on a backpack.
The British company has unveiled a new underwater jetpack that allows you to zip through the water at speeds of up to roughly 7 mph. (That probably feels much faster than it sounds.)
The all-electric hydrodynamic device is the brainchild of Archie O’Brien. The British designer developed the first “Cuda” prototype in 2018, putting in a further 30,000 hours of development before releasing the first commercial version in 2023. The design has been further refined since, with the 2025 edition being lighter and more juiced-up than previous models.
The underwater jetpack is entirely hands-free, unlike Seabobs and other sea scooters that require a tight grip. The backpack-like design, which weighs around 31 pounds all up, allows you to dive and spin like a dolphin at a speed of nine feet per second. The harness itself is made of heavy-duty fabric, with a high-grade limestone neoprene wrapping around the body. The back panel incorporates a carbon fiber skeleton to help everything stay stiff and secure against the thrust.
Speaking of which, the jetpack is equipped with a patented propulsion system that generates nearly 90 pounds of thrust. The electric motor drives a specially designed impeller that produces a powerful water jet, displacing about four gallons of water per second and pushing the user forward with remarkable force. Rated to 131 feet (40 meters), the jetpack is fitted with a 1 kWh lithium polymer battery that enables about 90 minutes of diving and can be fully charged in 75 minutes.
The jetpack is connected to an ergonomic controller with a full-color, hardened display that shows your performance, battery levels, and current depth. The brand says the system is intuitive, requiring only about five minutes of use before the diver becomes comfortable.
CudaJet is not the only one making this style of underwater jetpack—XiaoTun recently launched a Kickstarter campaign for a similar but slightly more affordable device—but the British company claims it created the world’s first.
The jetpacks are made to order in the U.K., with a three-month lead time required for each. The regular 2025 model is priced at $30,778. CudaJet has also released a premium Founder’s Edition. Limited to 20, this exclusive numbered edition showcases a distinctive livery that combines jet black with gold highlights and a shimmering top coat. It also includes a lifetime warranty, in-water training, and first access to future products. CudaJet hasn’t listed a price for the Founder’s Edition, but says only 14 units are remaining.
