wiiyii Heads-Up Display HUD for Cars — OBD/GPS Digital Speedometer, Black, Auto Brightness & Alerts

wiiyii Heads-Up Display (HUD) projects your vehicle speed and key driving data onto the windshield so you can keep your eyes on the road.

This compact HUD converts OBD-II or GPS inputs into a clear, front-windshield readout showing speed, voltage, coolant temperature and trip distance. Designed for quick plug-and-play setup, the unit offers automatic brightness adjustment, selectable units (km/h or MPH, °C or °F) and audible alarms for speed, voltage and temperature—helpful reminders without requiring you to look down at the instrument cluster.

How does the HUD present information so it’s easy to read while driving?

The wiiyii HUD uses a bright, high-contrast projection mapped near the driver’s line of sight so data appears to float on the windshield. Text and numerals are large enough to read at a glance, and the display automatically adapts brightness to day or night conditions.

• Projected speed readout on windshield, reducing eye movement.
• Automatic ambient-light brightness adjustment for readability.
• Selectable units: km/h or MPH and °C or °F for temperature.
• Clear numeric layout showing speed, voltage, water temperature and trip distance.

What functions are available through OBD and GPS modes?

Two operating modes let you choose the best data source for your vehicle. OBD mode pulls engine and electrical signals directly for speed, coolant temperature, voltage and traveled distance; GPS mode calculates speed and distance for vehicles that aren’t OBD-II compatible.

• OBD mode: speed, water temperature, voltage, driving distance and alarms.
• GPS mode: speed, voltage, driving distance and speed/voltage alarms.
• Alarms for speed, water temperature and voltage to alert the driver.
• Dual-system firmware for smooth switching and stable operation.

How simple is installation and which cars will it work with?

Installation is designed to be quick and nondestructive: plug the HUD into the vehicle’s OBD-II port or use the GPS-only setup if preferred. Note that OBD-II compatibility applies primarily to gasoline vehicles produced after 2008; some vehicle types require GPS mode instead.

• Plug-and-play connection to OBD-II port—no permanent modifications.
• Use GPS mode for vehicles not compatible with OBD-II or for older models.
• OBD-II not recommended for electric vehicles, diesel vehicles, pickup trucks, RVs or heavily modified ECUs.
• Clear guidance included so you can choose the proper mode for your car.

What quality standards and support come with the unit?

The wiiyii HUD is built around a high-performance chip and dual-core architecture to keep the interface responsive. The product carries CE, FCC and RoHS marks, and the vendor provides customer support for setup or troubleshooting.

• Certified to CE, FCC and RoHS standards for electronics safety and compliance.
• High-performance processor and dual running memory for reliable operation.
• Automatic brightness and robust firmware to minimize display lag or flicker.
• Manufacturer support available for installation and compatibility questions.

Who is this for: Drivers who want a safer, more convenient way to monitor core vehicle metrics while keeping their eyes on the road—commuters, long-distance drivers and anyone who prefers an uncluttered dashboard. Choose OBD mode if your gasoline vehicle supports OBD-II (post-2008 models); choose GPS mode for older vehicles, non-OBD systems or when OBD-II compatibility is uncertain.