Save $100 on the all-new Roborock S4 Robot Vacuum at Amazon

[iMore.com]

The Roborock S4 lets you control it using an app on your phone, so you can get the house cleaned even while you're busy and away from home. It cleans for up to 150 minutes at a time and drops $100 in price when you clip the on-page coupon at Amazon.

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