The HTC Ocean uses a new interface called Sense Touch that might reduce how much you use your hand on the phone. It has no physical controls so users will use touch, voice and gestures to operated the phone.
There's been a lot of buzz on tech companies making the change to remove the headphone jack. Apple is a master at it, removing the jack as well for reasons like slimming down the iPhone 7 or just because they feel like it.
Intel is also making the switch from 3.5mm to USB-C. They believe that they're making the right choice because it will have the ability to upgrade the firmware, and is less sensitive than regular audio connectors.
It's true that new tech will eventually make the others look obsolete. The pros both the USB-C and Apple's Lightning connector bring to the table are undeniable, but it might take time for everyone to jump on board.
The Ocean Note, despite the annoyance of no headphone jack, will still have great qualities like an all-glass frame and dual screen. This is all from an unknown source, however, so some of this should be taken with a grain of salt.