wiiyii GPS Head-Up Display HUD G4S — 3" Dash Speedometer (MPH/KPH), Auto Brightness & USB Plug-and-Play

The wiiyii HUD G4S is a plug-and-play GPS head-up display that projects your vehicle speed, direction, voltage and trip data on a bright 3" screen so you can keep eyes on the road.

The HUD G4S mounts on the dash and uses an internal GPS sensor to deliver real-time driving information in miles or kilometers per hour. With automatic power control, adjustable brightness and eye-friendly green digits, the unit reduces the need to look down at the instrument cluster and helps you monitor speed, direction and basic diagnostics without distraction.

How does the HUD help me drive more safely?

The HUD brings speed and essential driving data into your line of sight, reducing glances away from the road. Large green numerals and an auto-dimming feature keep information readable without causing glare during night driving.

• Projects speed and direction on a clear 3" display
• Green-eye protection font reduces visual fatigue
• Automatic brightness adapts to ambient light
• Alerts for speeding and fatigue driving reminders

What information does the wiiyii G4S show and how accurate is it?

Built around a GPS module, the device displays vehicle speed (MPH/KPH), driving direction, satellite count and voltage levels. It also measures acceleration and distance for 0–100 km tests; GPS-based readings are independent of the car’s speedometer, providing precise external speed data.

• Speed readout with selectable MPH or KPH
• Driving compass/direction and satellite count
• Battery/vehicle voltage monitoring
• Performance tests like 0–100 km and distance recording

Will the HUD G4S work in my vehicle and how is it powered?

The HUD is USB-powered and relies on GPS signals, so it works across car, truck and SUV models without vehicle-specific wiring. It includes an auto power on/off feature that syncs with the vehicle ignition to protect the battery and supports both manual and automatic brightness modes.

• USB plug-and-play installation—no hardwiring required
• Compatible with gasoline, diesel and electric vehicles
• Auto on/off with ignition to save battery
• Manual or automatic brightness adjustment available

How easy is it to set up and customize alerts?

Setup takes minutes: mount on the dash, connect via USB and the GPS acquires satellites automatically. Alerts such as speeding warnings and fatigue reminders are configurable with one-touch switching and intuitive menu options.

• Quick dash mount and USB connection
• One-button switching between display modes
• Configurable speed alarm thresholds and reminders
• Displays satellite count to confirm signal quality

Who is this for: drivers who want an affordable, easy-to-install HUD that keeps speed and basic vehicle data in their line of sight. The wiiyii HUD G4S suits commuters, long-distance drivers, performance testers and anyone who prefers GPS-based speed readings or needs a non-invasive way to monitor voltage and trip performance.