The much-rumored HTC One successor codenamed M8 has leaked in a new video, showcasing its specs and features in what seems to be a review.

The video is 12-minute long and shows everything from the handset's purported dual-camera setup to its overhauled interface and more. Recent leaks have suggested that the smartphone will launch in the U.S. on at least two major carriers, Verizon and AT&T.

Reputable UK retailer MobileFun has also listed the device as the HTC One 2014 M8, with quite a high price tag of £579.99, noting that it expects stock in two months. Nothing is official just yet, but the rumor mill seems to be working overtime when it comes to the highly-anticipated HTC One successor.

The leaked video allegedly showing the "All New HTC One" popped up online on Sunday, March 2, from a user named Roshan Jamkatel. After a threatening Twitter conversation between the leaker and HTC Senior Global Online Communications Manager Jeff Gordon, the video was taken down.

Although the original post is no longer available on YouTube, mirrors of the video are still creeping up all over the web. The video below is from YouTube user GadgetGuru.

"It's not going to be a good week for you, my friend," HTC's Jeff Gordon told Jamkatel on Twitter, in reply to the leaked video post. Jamkatel immediately replied that it was a fake phone, trying to make a save, but it was already out there.

"We have the IMEI and all other info. We'll be in touch," Gordon further replied, suggesting that the phone shown off in the video was, in fact, real. After first claiming that the phone in the video was not real, Jamkatel is now claiming that someone else posted the video.

"Leave that kid alone will ya? What harm did that video do to you or htc?" commented another Twitter user who was following the conversation between Jamkatel and Gordon.

"Leaks and broken NDAs have concrete financial harm," Gordon explained in response.

In other words, while it is yet to be confirmed that the handset in the leaked video is indeed the HTC One successor, it's unlikely that a bogus video of a fake device would have caused such a reaction. It's all just speculation, but you can watch the video below.