There are gadgets that change everything (the iPhone, Amazon Echo, the first laptops with Wi-Fi built-in, Bose's noise-canceling headphones), and then there are devices that are so spectacularly bad that they should be immortalized in their own way. The last few decades have seen all kinds of flops, from a not-so-world-changing scooter to Nokia's deliriously bad attempt to beat Nintendo and Sony at their own game.
More recently, we've seen hoverboards (ahem) explode on the scene, Amazon's Fire phone go up in flames and Glassholes torpedo Google's early wearable ambitions. To make our list of all-time gadget flops, the product had to do more than fail to execute. It had to have a decent amount of hype behind it — enough to help make that crash and burn all the more satisfying. Here are our top 25 worst gadget flops of all time.