Backpack-style jetpack lets divers fly in sea hands-free for 90 mins

The AJ-03 Aquatic Jetpack, developed by Hong Kong startup XiaoTun, is an innovative, backpack-style underwater propulsion device designed to enhance diving experiences by enabling hands-free movement underwater. Weighing just 20 pounds, it features two electric jet modules delivering strong propulsion and operates quietly and eco-friendly on a 15,000-mAh lithium iron phosphate battery, providing 30 to 90 minutes of use depending on speed settings. The jetpack supports dives up to 66 feet and includes a secure harness system with space for a two-liter scuba tank, although compatibility with other diving gear remains unclear. Control of the AJ-03 is user-friendly, offering a wired remote with directional buttons and battery level display, alongside an AI-powered cruise control that adjusts propulsion based on the diver’s body movements. This cruise control has three preset speeds, helping reduce fatigue and streamline underwater navigation. Priced significantly lower than competitors like the $18,000 CudaJet, XiaoTun’s jetpack is available