Apple's HomeView, which debuts on Friday, is a smart home device—think of it as a an iPhone-Apple Watch hybrid sitting on your counter—that can be personalized for up to six people and connected to each of their iCloud accounts. Using ambient face and voice data, it is designed to seamlessly switch between users while maintaining each of their privacy. You can ask HomeView about your schedule for the day and what movie your friend recommended in a text, but you'll be stopped from asking about your roommate's travel plans or her texts from last night. The feature doesn't rely on one of Apple's battle-tested biometric locks, like FaceID or TouchID, though. Instead, it uses new “person recognition” technology built off of an Apple architecture for securing sensor data.