This window-cleaning robot is a miracle-worker, and if it's on sale for Prime Day you should grab one ASAP

Amazon Prime Day is fast approaching, with deals starting July 8 and ending July 11. Here at TechRadar, we'll be rounding up all the best offers on laptops, TVs, cameras, and more. However, personally, there's only one product I'm really hoping will receive a price cut: the Ecovacs WinBot W2 Pro Omni robot window cleaner.

I've been lucky enough to test some seriously cool gadgets during my 15 years as a tech journalist, but the Winbot stands out as the one that's impressed me the most, and one I'd recommend to anyone who wants to take some of the sweat out of one of life's most tedious chores.

I had my doubts at first. Would it attach firmly enough? Could it really remove dirt, or would it just move it around? Would using it be a chore in itself? Thankfully ...