Dreame’s step-climbing X50 Ultra mopping vacuum is hundreds off

It’s been a while since we’ve seen a big price cut on a capable robot vacuum and mop hybrid that can scale over short steps and threshold to hunt messes. Dreame’s X50 Ultra is the model that my colleague Jen recommends for hard floors and carpets, and it’s down to $899.99 at Amazon for Prime members (originally $1,599.99, but commonly...