The Solo Loop band is the most affordable option, costing just $14.99 at Woot in a range of delightful colors and several sizes. This model typically costs $49 new when purchased directly through Apple, but now you can get three for around that price.
Xiaomi's upcoming smart glasses are designed for first-person perspective filming, allowing users to capture and share experiences hands-free, positioning the product against competitors like Oakley and Ray Ban.