Never heard of Uptrade before. A market for used phones is great for those who don't need to pay for the latest shiny things! Shipping was lightning fast, and customer service good. My Oneplus 6T is working well. I have just one negative. The phone was listed as Pristine condition, which I don't think is accurate. It's good, the screen is quite good which is the most important thing. Everything works, although there was a lot of "gunk" in the openings and the alert slider, which didn't quite work right until I cleaned it out with a little electronics cleaner. Therr are some marks in the body that I couldn't exactly see in the pics online. So what, I put it in a protective case anyway. So it's in good, used condition and I got a fair deal. I just wouldn't call it Pristine. Thanks Uptrade!