Best Vacuum With Smart Technology: Dyson V15 Detect Cordless Vacuum One of the brand's newest innovations is the Dyson V15 Detect Cordless Vacuum ($700). Is has a cool green laser light that shines on your floor, so you can see every single spot without missing dust or debris. Image Source: dyson.com Dyson V15 Detect Cordless Vacuum $700 from dyson.com Buy Now