SharkNinja has unveiled its latest line of robot vacuums. There are three PowerDetect models and the most budget-friendly model is already available to buy from Shark. What we love about it is that, even though we’ve been seeing some incredible robot vacuums with genuinely impressive feature sets, they still tend to be very pricey. Shark’s PowerDetect Self-Empty Robot Vacuum RV2820AE has many of the same features–and it’s under half the price of market-leading models at $599.99. At the time of writing, you can buy it for even less on Amazon. Buy it from Amazon What it doesn’t have is the abili…