I am not sure I want hard components located inside a helmet. I was hit on my motorcycle, head on, and Superman-ed into the car that had crossed into my lane.

The helmet saved my life, quite probably. It was so effective that Buell wanted it back to study it. Other than smashing my hands and one ulna, I was just a bit battered and bruised but the helmet was a wreck. The bike was a complete loss. There were pics online, they probably still are.

Anyhow, unless you're going to end up with a heavy over-sized monstrosity, the electronics are going to take up space in the padding. I may be biased, but I'm kind of partial to that padding.

By the way, get certified helmets. Inspect your helmet for damage on a regular basis. Replace damaged parts. Replace any helmet that has been involved in an accident involving any force to the helmet.

Of all those, a certified helmet seems to be the more pressing issue. I see many people wearing novelty helmets that are just as likely to cause additional injury as they are to prevent injury.

Ride safe.