HUD Heads Up Display for Cars 2025 New Universal Digital GPS Speedometer LED Display with MPH Speed Compass Overspeed Alarm Fatigued Driving Alert,USB Cable Plug and Play for All Vehicle
$23.99
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Features & Compatibility
Price: [price_with_discount]
(as of [price_update_date] – Details)
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Product description
Professional scheme design
The introduction of Taiwan Lianyong technology solutions, high-performance processing chips, powerful performance and compatibility, dual-running memory and dual-core processors ensure smooth high-speed operation, and core algorithms are used to add speed lubrication effects to make the display more coherent and smooth.
Automatic switch machine
Automatically turn on and off when the car starts and shuts down
HD Display
The light-sensitive screens feature an automatic dimming function that dynamically adjusts brightness, ensuring optimal display clarity in various lighting conditions—whether in daylight, nighttime, bright light, or low light.
HD LED
Clearly Visible in Daylight,Auto-darken at Night.
Automatic sensitivity adjustment
Built-in light sensor to sense the brightness of the external environment and automatically adjust
Product List G21-HUD*1Instructions*1Rotary Suction Cup Holder*1Type-C interface*1Non-slip Mat*1
GPS Speed Display
Suitable for all models / Total mileage / Altitude / Distance traveled / Driving time / Time/ Compass / Ambient light
FAQ
FAQ:
1.The screen has no display and there is no power.
Check if the USB cable is damaged or replace new one for testing (do not use a voltage higher than 5V for power supply)
2.No speed display
After the product is powered on, please move the car to an open road to receive the signal and wait for searching the satellite signal. When ‘- – – ‘shows 00, it means the HUD connect to satellite successfully.
3.The speed is still displayed after the car stops
When driving in underground parking lots、 tunnels、 under overpasses and other places where the signal is unstable, the data displayed by the product may have deviation. Driving the car to an open road will restore to normal.
4. Inaccurate vehicle speed
A: Please check if the speed unit is correct KM/H or Mile MPH (please refer to the speed unit setting in the Menu Items 7)
B: If the speed unit is correct, fine-tune the speed ( the car displays 100Km/H, the HUD product displays 105Km/H, and the HUD parameter value can be adjusted to 102 Menu Items 1 )
5.Driving direction display error
Without the vehicle speed, the satellite cannot identify the direction of the vehicle. The product can only display normally after the vehicle speed exceeds 5Km/H.
6.Time calibration
A: Adjust time zone: The satellite icon flashes to show that no satellite has been found. The default is East 8 8:00. If you need to adjust to other time zones, please go to the setting menu item 11. (for example: The area is 1 hour ahead of Beijing time, adjust to 9:00)
B: Adjust time: When the satellite icon stops flashing, it will automatically switch to the time. Please go to the setting menu item 11, local time zone, save and exit.
Digital GPS Speedometer Display – This GPS speedometer simultaneously shows essential driving data, including real-time speed (mph) and direction. Featuring 6 customizable display modes, you can easily adjust the interface to suit your preferences and needs.
Enhanced Signal Reception – GPS speedometer mph car HUD features advanced dual-mode chip technology—combining GPS + BDS signals—with a high 10Hz refresh rate for fast, ultra-precise positioning. Capable of connecting to up to 32 satellites simultaneously, it ensures a stable, high-accuracy signal for real-time speed data—whether navigating busy city streets or remote rural roads.
Smart Auto-Brightness Adjustment – The car HUD is equipped with intelligent light sensors that dynamically adapt screen brightness to ambient lighting. Whether under glaring sunlight or in low-light nighttime conditions, it delivers optimal clarity for effortless readability—enhancing driving safety with a comfortable, always-visible display.
Dual Safety Alerts–This GPS speedometer features two essential alarm functions—Speeding Alert and Fatigue Driving Reminder — to enhance road safety.Speeding Alert: Set a custom speed threshold (default: 120 km/h) to avoid accidents and fines by staying within legal limits.Fatigue Alert: Automatically triggers an alarm after 4 hours of continuous driving, reminding you to take a break for safer journeys.A must-have upgrade for your car’s dashboard, keeping you alert and compliant on the road.
With Compass Function – This advanced speedometer features a built-in vehicle compass that delivers real-time directional data, ensuring confident navigation in any environment. Whether you’re maneuvering through urban streets or venturing off-road, the compass provides essential orientation to complement your journey.
With ODO Function – Heads up display for cars with advanced system features comprehensive mileage tracking, including permanent ODO (total distance) recording with auto-save upon engine shutdown, plus a dedicated trip meter for measuring point-to-point journey distances. All data remains securely stored for accurate driving analytics.
Universal HUD for Any Vehicle with USB Port – Simply plug into your car’s USB port for instant heads-up display functionality. Compatible with all vehicles – for motorcycles cars trucks taxi golf car – car heads up display hud requires no setup or modifications. The auto-start design driving data onto your hud when you turn the ignition on, offering enhanced safety with zero installation hassle.
Clearer Display – MPH speedometers for car HUD features a high-contrast large-font speed readout (default: MPH) with anti-glare metal blackout technology, eliminating reflections for optimal clarity. The glare-resistant display ensures perfect visibility in all conditions—ideal for drivers with vision challenges or those wearing sunglasses.
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R EVANS – TENNESSEE –
Digital GPS Clock/Speedometer/Altimiter
This unit performs very well. My Ranger (2011) has speedometer that is black background with red pointer, and if you have a color deficiency, you know how hard that is to read, and the clock built into the radio, lets just say only a passenger can read. This unit is perfect to solve both problems. Unit has several options besides speed and time, but this was great for my needs. Highly reccomend.
Carlos –
Works
Once it’s calibrated, it works well
Chris A Kulpaca –
Operates
Works fine, speedometer may be off just a bit but for the cost it is totally acceptable. Sun does at times make display a bit difficult to see, but that happens with all types of devices with this type of screen. Sometimes a little slow to pick up satellites for display, however it is not an unacceptable length of time for me
K. McMahon –
Great small altimeter
Great little altimeter. I needed one to check my altitude as I drive. I use it in my truck and UTV. This altimeter seems to be very accurate also, matches altitude that is stated on maps.
Boston –
It’s off by 3 mph
It works and works pretty good but it is 3 mph off an hour and I can’t figure out how to set the clock and not in military time otherwise I would give it 5 stars
Felix Morales –
GPS isnt what I expected
This gps would be good if it made sense. You can’t reset the gps and ita reading the wrong speed. It’s 5 miles slower or faster than what you actually are doing. You can’t changed from mph to kph and that’s needed especially since I’m in Canada.
Nate –
Great heads up display speedometer and odometer for the money!
Awesome heads up display! Love that it shows mileage trip odometer directional heading and elevation. Comes with a cord long enough to plug into your cigarette lighter and run under the dash across the car to mount on your window shield no problem! If you don’t have a speedometer or odometer this bad girl is a awesome tool 💯☄️🚀🎉
Spanky0749 –
When it works
When it has a GPS signal it works okay. Delay in getting signal on start of car. Often several miles down the road before starting to display speed. Bought because my OEM speedometer mileage stopped counting. So losing several miles towards total everytime I startup and drive. Don’t recommend.
S. Newby –
I bought this because I have a couple of classic cars in which the speedometers are very difficult to read PLUS they are quite inaccurate.This item is fantastic — it’s accurate, it’s responsive, the display is easy to read (even in direct sunlight), but I highly recommend AGAINST following the manufacturer’s so called “calibration” setting. You DO NOT want this to read the same as your car’s inaccurate speedometer, instead, you want it to report GPS velocities (which are spot on). So, ignore what the manufacturer says, set the calibration number to 100 (by default it is set to 107) and don’t look back.Also note, when first used these units need half an hour or so to “settle down” (there’s certain information that needs to be acquired from the satellites when performing a so called cold start). Just be patient … the unit will work fine after the first couple of uses.
ChadderBoxGarage –
This is the 2nd HUD I’ve purchased now for older vehicles , I must say this is now my go to, with the odometer it helps me track maintenance and fuel mileage in my old pickup truck which the Speedo was way out of spec , 5 star product super easy to install
Craig Van Schepen –
My stock speedometer doesn’t work so I’ve used GPS speedometers for a couple years. This is my 2nd, an upgrade from the 1st one I got. The built in clock, odometer, compass and speed adjustment are amazing features that made this 100% worth it. My only issues are the double sided tape that comes with this sucks, and the speed isn’t 100% accurate. It’s close enough once you dial it in but varies +or- 1 or 2km/h. My old one had no adjustment or any features at all, just speed. It read 4km/h high exactly all the time no variation if it said 100 I knew I was doing 96. This one says 100 I might be doing 102 I might be doing 98 but it’s close enough it doesn’t really matter. Display looks good, everything works good. 100% recommended if you have non stock sized tires or your speedometer doesn’t work
Gary –
Arrived today broken in the box. The little tab in the back to activate suction cup is broken.
Paul –
Arrived quickly and works as it should. Pretty easy to use