HTC One M9 Plus (or M9+) dummy shows up in video, it's certainly bigger than the regular One M9
The video comes from @OnLeaks / Nowhereelse, the same source that revealed the One M9 Plus mock-up that we just told you about. Reportedly, One M9 Plus dummy units like the one we're seeing in the video are used by HTC to test official protective covers. So, if this is indeed the real HTC One M9 Plus, the device will have a physical home button (possibly including a fingerprint scanner), a dual rear camera, and a large front-facing camera. The dummy unit measures 150.9 x 72.5 x 10.15 mm, and sports a 5.2-inch display (this should have a 1440 x 2560 pixel resolution on the final product).
Just like the regular One M9, the One M9 Plus is expected to be powered by an octa-core Snapdragon 810 processor, though some variants may also use a MediaTek chipset. We'll let you know more about the handset as soon as new details are available.
source: @OnLeaks, Nowhereelse (translated)