It's only been a few years since people started asking strangers for cash to help transform gadget ideas into actual gadgets. In that span, there have been some remarkable successes, one hugeand thousands and thousands of final products shipped.
Among the most successful have been thesmartwatch, the Kickstarter that raised millions and added the term "smartwatch" to the public's vocabulary -- now huge names like and are trodding down the trail blazed by that crowdfunding campaign. Perhaps you've heard of the . That also started on Kickstarter, as did numerous 3D printers and other products that promise to do something smarter or just better than before.
We've pulled together the 10 most successful tech hardware crowdfunding campaigns, according to statistics from Kickstarter and Indiegogo. More than a few of them may surprise you. Check them all out in the gallery below.