When you purchase through links in our articles, we may earn a small commission. A massive battery lets this robotic pool cleaner run all day and then some. We'll let you decide if that justifies its sky-high price tag. "Set it and forget it" is something of a moving target in the world of robotic pool cleaners. While a few models have exceptional battery life--a bit more than six hours being about the best I've seen--many die after just a couple of hours in the water, requiring immediate retrieval and recharging.

This is a review of two pool robots, one which is the most exceptional cleaning device I've tested to date, and one that's maddeningly frustrating and overly complex. You've probably already figured out the twist: Yes, they are same device, the iGarden Pool Cleaner K60. To start things off, just look at the thing: With its jet-black chassis and orange-trimmed wheels, the machine looks more like a sports car than a glorified leaf sweeper. Despite the evocative look, it still moves about courtesy of large wheels and treads that abut a pair of spinning scrubber. Its biggest selling point is under the hood: A fairly beefy 7500mAh battery powers the 30-pound robot to an epic running time of up to 6 hours, according to iGarden.