Meta announced Muse Charm: a keychain-sized device with a 2-inch touchscreen, a camera, at least three microphones & a fingerprint sensor to wake it. Ships December. No price. The architecture is the interesting part. Meta reportedly gave it built-in 5G, which means it doesn't need a paired phone & on something this size there's no room for meaningful onboard compute. So the device captures, the network carries & the model runs in Meta's cloud. Sensor at one end, intelligence at the other. That's the same admission as the VR Glasses at the same event, where the processor sits in a separate puck. Both say the limit on wearables isn't chips. It's thermal load & battery mass on the body. Zuckerberg's own framing: if you're not wearing glasses, this is the fastest way to show Muse what's going on around you. Which is a camera, on a keyring, in whatever room you're in. The specs that actually matter haven't been published like battery life, whether capture is continuous or on demand & what signals to people nearby that it's recording. Meta says the layout isn't even finalized. Humane's Pin ran hot & died. Rabbit's R1 underdelivered. This one offloads both the heat & the thinking, which fixes the hardware problem but also creates a different one.