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Part of my job as a reviews writer here at Tom's Guide is to try out the newest robot vacuums. This means I have spent countless hours making a mess and cleaning it back to see which vacuums really are the best.So when I looked on Amazon today to check out their latest Prime Day deals, I was shocked to find some of the best vacuums I've used at a discounted price — score!My top pick here is the Roborock Saros 20, which I use daily in my home. It's currently on sale at its lowest ever price for $1,344. However, it's not the only deal I recommend. Here are five great robot vacuums, some available for less than half price!Top pick robot vacuum deals on Amazon: Quick linksLefant M210: was $199 now $85 @ AmazonRoborock Q10 S5+: was $549 now $239 @ AmazonShark Powerdetect 2-In-1 Robot Vacuum & Mop: was $1,199 now $499 @ AmazonShark PowerDetect UV Reveal: was $1,299 now $849 @ AmazonRoborock Saros 20: was $1,599 now $1,344 @ AmazonWe're tracking all the best Prime Day home appliance dealsThe Tom's Guide Savings Squad is busy finding the best products for less this Prime Day! Follow Tom's Guide on Google News and add us as a preferred source to get all the latest. Alternatively, you can read our content on the Tom's Guide app available now for iOS and Android.