As if you needed any convincing, EVleaks has once again demonstrated that he's some kind of wizard at finding and disseminating press shots of upcoming phones. This weekend's leaks include HTC's shiny new One max [sic] in both AT&T and Verizon flavors, posted to EVleaks' Google+ account. We'd heard about a Verizon version from HTC at launch, but the AT&T model is new, if not unexpected.
You'll note a common theme among these plus-sized phones: carrier logos swapped out for HTC's customary logo between the back and home buttons on the One family. It's not altogether surprising that Verizon decided to brand the One max with a scarlet V, but the AT&T logo is a bit of a disappointment. The larger surface area on the 5.9" phone may have inspired the American carriers to a little overzealous branding, though Verizon will stick a logo pretty much wherever it likes. Compare the relatively tasteful One max to the LG G2 and the unreleased Verizon Galaxy S4 Mini. Also note the fact that the coloring on Verizon's One max is a little darker, though that's probably just a difference in rendered lighting.
The One max has internal specifications that are nearly identical to its older and smaller brother: same Snapdragon 600 processor, same 2GB of RAM, same 1080p resolution on the larger screen. Though the body is of course much larger, the One max keeps the sealed metal shell and front-facing speakers. Around back you'll find a fingerprint sensor beneath the 4 "Ultrapixel" camera. The rear cover also pops out to reveal a MicroSD card slot to expand 16 or 32GB of storage. Unfortunately, the 3300mAh battery is not removable. Software is Sense 5.5 on top of Android 4.3.
AT&T has not commented on the One max, but both Verizon and Sprint models are confirmed by the carriers. The international rollout of the phone is scheduled for late October, but you can expect it to take a little longer to get to American carriers. Verizon says its One max is coming by "the holiday season."