Here is another lightweight, portable sea scooter for underwater adventures. The ASIWO TURBO SeaScooter has 2 x 600w motors and is rated to depths up to 30 meters. You can dive up for up to 70 minutes. The SeaScooter has 3 speeds (1.1mph to 3.3mph). You can attach a GoPro mount to record all your adventures.
The ASIWO TURBO comes with ergonomic handlebars. It is expected to ship in October.