Yes, there is a difference between a water bouncer and a water trampoline. The jumping surface of an inflatable water bouncer is connected to the flotation tube, not by springs, but usually by interlocking nylon webbing.
Bouncers usually range in size from 10 feet to 15 feet in diameter.
Water bouncers do not require assembly. They only need to be inflated and anchored before enjoying.
Water bouncers are also generally less expensive than water trampolines. Most bouncers are priced under $1,000.
An inflatable water trampoline differs from the water bouncer in that it can support much heavier loads and allows for much higher jumping than the water bouncers. The added support and higher jumps are the result of the framed jump surface. A water trampoline's jump surface is connected to the frame by springs.
Water trampolines do require some assembly. The frame and jumping surface must be assembled and attached to the floatation tube.
Water trampolines range in size from 10 feet all the way up to 25 feet in diameter.
While it is very easy to find water trampolines under $1,000, water trampolines are usually more expensive than the water bouncers.
It is a good idea to purchase a ladder for your water trampoline. Many inflatable water trampolines come equipped with ladders.
An inflatable water slide attached to your water trampoline is also a great addition. Rave water trampolines makes water trampoline attachments like the Aqua Log, a straight, inflatable attachment to your trampoline. See if you can run all the way to the end of your Aqua Log without falling in the water.