Biometric Censor in a Smart Phone

i feel lie. Do you think the next mobile biometric teck will be? Temperature scanner, odor detector, lazer guided weight scale? Raonlike there's a tone of different o know, things hiy don't happen in the biotic world. But let me just go like, biometric censor in a smart phone. And when i think about that, they're almost always identity or security related. I actually don't think we need any extra different censors.