Choose by how you want to wear your audio.
| E51 | A8 | Airlio | |
| Best for | Everyday eyewear with optional audio | Bright outdoor use | Audio with or without glasses |
| Format | Modular audio glasses | Polarized audio sunglasses | Open-ear neckband headphones |
| Audio | Detachable modules | Built into the frame | Independent wearable |
| Eyewear | Everyday metal frame | Polarized UV400 lenses | Works with your own eyewear |
| Charging | Dedicated case | Magnetic cable | Magnetic cable |