Soft silicone that outlines your ear and clips on twice. The top clip carries a camera that looks where you look; the back clip carries the speaker and the battery. Nothing goes in your ear, and nothing crosses it.

• Camera in the top clip, facing ahead
• Open-ear speaker in the back clip
• Soft silicone hook
• Charging case
• The assistant, memory and connectors
• A light that shows when the camera is on

The JINI from the film: one smooth hook over the ear, a lens ring at the front and a pod behind that balances it.

• Camera in the lens ring, facing ahead
• Bone-conduction contact in front of the ear
• Battery and computer in the pod behind
• Charging case
• The assistant, memory and connectors

REJI clips onto the glasses you already own. A camera sees what you see, the answer arrives through bone conduction where only you hear it, and it shares one memory with JINI.

• REJI, with mounts for your own frames
• Camera facing ahead
• Bone conduction on both sides
• The assistant, memory and connectors
• Companion app for iPhone
• USB-C charging