









🚦 Drive smarter, safer, and cooler with M23 HUD — your ultimate co-pilot on every journey!
The M23 HUD Head Up Display is a sleek, universal OBD2 GPS speedometer that projects essential driving data—speed, direction, time—directly onto your windshield. Featuring a 3.5-inch display, dual GPS + Beidou chip for precision, customizable overspeed and fatigue alerts with voice notifications, and an auto-dimming screen for optimal visibility day and night. Powered by simple USB plug & play, it offers an effortless setup without complicated OBD connections, making it the perfect smart driving companion for safety-conscious professionals.






| Brand | YAOUZICN |
| Manufacturer | Yaouzicn |
| Country of Origin | China |
| Model number | H4 |
| Number of Memory Sticks | 1 |
| Item Weight | 150 g |
| Product Dimensions | 9.96 x 6.5 x 2.01 cm; 149.69 g |
| Item model number | H4 |
| Item Height | 0.79 Inches |
| Item Width | 2.56 Inches |
| Display Size | 3.5 Inches |
| Included Components | H4 HOST/ Reflective film/ 2.5M USB Cable/ 3M glue/ Instructions |
| Are batteries included? | No |
Trustpilot
1 month ago
1 month ago