wiiyii HUD G4S Head-Up Display for Car – 3-inch GPS Speedometer, MPH/KPH & Alerts

The wiiyii HUD G4S is a plug-and-play head-up display that projects real-time GPS speed, direction, voltage and driving alerts onto a 3-inch screen so drivers keep their eyes on the road.

If you want a simple, dependable way to monitor speed and basic driving telemetry without glancing down at your dash, the wiiyii HUD G4S offers a clear green display and multiple safety features. It uses onboard GPS signals to show accurate vehicle speed in miles or kilometers per hour, plus compass direction, satellite count, voltage readout, speeding alarms and fatigue reminders. The unit powers via USB, supports automatic power on/off with ignition, and includes adjustable brightness to reduce glare during day or night driving.

How does the wiiyii HUD G4S keep me from looking down while driving?

The HUD projects essential driving data on a high-contrast 3-inch display placed near your line of sight, reducing the need to check the instrument cluster. Large green numerals are optimized for quick recognition and eye comfort during long drives.

• 3-inch screen with large green font for immediate readability
• Displays speed, direction, satellite count and battery voltage
• Minimal glance time thanks to line-of-sight positioning
• Automatic brightness and manual mode prevent glare

What driving information and alerts does it provide?

The G4S shows multiple telemetry points and configurable warnings so you get meaningful feedback without complexity. Alerts help you notice speeding or extended driving periods that may increase fatigue risk.

• Real-time GPS speed with switchable MPH/KPH
• Speeding alarm and fatigue-driving reminder
• Compass direction and number of GPS satellites in view
• Vehicle voltage readout and 0–100 km acceleration test function

Is the wiiyii HUD G4S easy to install and compatible with my vehicle?

Yes — the unit is USB-powered and relies on GPS signals rather than a vehicle-specific OBD connection, making it broadly compatible. Plug the included USB cable into a car power source, position the HUD on your dash, and it will auto power with ignition in most setups.

• USB plug-and-play installation — no vehicle wiring needed
• Works with cars, trucks and other vehicles that accept USB power
• Auto on/off with vehicle ignition to protect battery
• Automatic and manual brightness options for different conditions

What certifications and quality features does it include?

The G4S conforms to common international safety and electronic standards and provides additional testing features for vehicle performance. Support and seller contact info are available through the merchant page.

• CE, FCC and RoHS certified for electronics compliance
• Accurate 0–100 km acceleration and driving distance tests
• Green eye-protection display designed for long drives
• Customer support contact available via the seller page

Who is this for: The wiiyii HUD G4S is aimed at drivers who want a straightforward, non-invasive way to monitor speed and basic telemetry without rewiring their vehicle — ideal for commuters, delivery drivers, long-distance motorists and anyone who prefers head-up information for safer, less distracting driving.