Xiaomi calls this a "concept," but it seems like a working product.
XIAOMI smart glasses were a pleasant surprise. but who helped to build them? WAVEOPTICS, JBD, SUNNY OPTICAL according to reports : r/AR_MR_XR
Xiaomi now has smart glasses with a built-in display as well! - Marksmen Daily - Your daily dose of insights and inspiration
Xiaomi shows off smart glasses with an all-green microLED waveguide display
Vuzix and Plessey enter into a long-term MicroLED supply agreement
Xiaomi debuts concept smart glasses that take photos, display notifications and have AR capabilities
Discover - Xiaomi Global Home
Xiaomi announces its first smart glasses with a 0.13-inch MicroLED microdisplay
Xiaomi shows off concept smart glasses with MicroLED display - The Verge
Past, present, and future(?) of smart glasses - EDN Asia
AR/VR « PRADEEP's TECHPOINTS
Xiaomi shows off its Mission Impossible-inspired smart glasses that come with a microLED display - SoyaCincau