So my official Xbox 360 headset works on the PS4, but not the X1. Sigh.
You sure it doesn't have BT at all? I'd think they'd want it in there for streaming audio, phone connectivity etc.
According to kotaku: "The internal wireless protocol that allows the controller to communicate with the console has been overhauled from the 360 era, replacing a 1.6 megabit per second connection of the old one with a modified WiFi protocol for the new one that enables 20 times the bandwidth which, in turn, Alam said, "allows a whole different variety of different accessories we can build with the controller and around the controller."
1.6x20 = 32mbps....it's not a huge difference over 24mpbs, certainly not a good enough reason not to use bluetooth. But of course, bandwidth isn't the real reason theyre not using bluetooth.
And speaking of latency:
The new proprietary protocol—to be clear, it's not WiFi nor Bluetooth, which Alam said was too slow for their needs—should reduce controller-to-console latency by 20% compared to the old 360 connection. How fast? Alam says that the time from button press on an Xbox One controller to the console receiving the signal should be 9 milliseconds.
They dropped the latency from 11ms to 9ms. Every little bit counts of course, but a ridiculously tiny difference, and BT 4.0 probably enables a similar boost.
Bluetooth uses the same 2.4ghz spectrum, as did the original 360 controller spec...and being that it's a "modified wifi protocol", the new controller spec is almost certainly 2.4ghz as well.
Just dont forget that the primary cause for input lag is your TV and the game itself. The best case scenario at 60fps on a tight engine is like 50ms, the best case response for a TV is a single frame at 16ms.
So in the absolute best case scenario, it amounts to a drop from 66ms to 64ms...an earth shaking 3% reduction in real world latency.
Every little bit counts of course, but I'm just trying to be realistic...it's an insignificant gain in the grand scheme of things.