GearBest offers the Haier XShuai T370 WiFi Robot Mop and Vacuum Cleaner for $219.99. Coupon code "SDGBT370" cuts it to $159.99. With free shipping, that's the lowest price we could find by $13. This self-charging vacuum features three cleaning modes, a gyroscope navigation system, HEPA filter, 10.1-oz. dust bin, 8.8-oz. water tank, built-in WiFi, voice control via Alexa and Siri, remote control via mobile app, and up to 90 minutes of cleaning per charge. Deal ends January 31.