---
product_id: 658198748
title: "Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles"
brand: "yaouzicn"
price: "฿144"
currency: THB
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.th/products/658198748-car-gps-hud-head-up-display-h4-digital-speedometer-auto
store_origin: TH
region: Thailand
---

# Auto-dimming for night comfort ±0.5% GPS speed accuracy Real-time compass direction Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles

**Brand:** yaouzicn
**Price:** ฿144
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate your drive with real-time HUD clarity — never miss a beat on the road!

## Quick Answers

- **What is this?** Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles by yaouzicn
- **How much does it cost?** ฿144 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/658198748-car-gps-hud-head-up-display-h4-digital-speedometer-auto)

## Best For

- yaouzicn enthusiasts

## Why This Product

- Trusted yaouzicn brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Global Ready:** Switch easily between KM/H and MPH for seamless driving anywhere in the world.
- • **Clutter-Free Cockpit:** HUD declutters your dashboard by projecting essential info right in your line of sight.
- • **Effortless Night Vision:** Auto-dimming display adapts brightness to reduce glare and eye strain after dark.
- • **Precision You Can Trust:** Dual satellite GPS tech delivers speed accuracy within ±0.5%, keeping you confidently on track.
- • **Drive Safer, Stay Focused:** Projects speed & direction on windshield, eliminating dashboard distractions.

## Overview

The YAOUZICN H4 Car HUD is a compact, universal heads-up display that projects your real-time speed and compass direction onto your windshield. Featuring dual satellite GPS technology, it offers ±0.5% speed accuracy and an auto-dimming screen for optimal visibility day or night. Easily switch between KM/H and MPH to suit any region, making it the perfect upgrade for safer, more focused driving across all vehicles.

## Description

Buy YAOUZICN Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles: Speedometers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Inexpensive and useful - This worked pretty well. I have a heads-up display on my car, so I wanted to get one for my daughter. Her speed control is not very good. She tends to drive too fast, then too slow -- not at a steady speed. I am hoping that the digital readout will make her more conscious of her speed. Since I started using a car with an integrated heads-up display, I've become much more conscious of my speed. It's easy to install. I would recommend getting a USB hub as it will use up one of the USB ports (nowadays, those are cheap and available). It only does speed measurement and it's as accurate as GPS can be, which is to say not as perfect as an integrated HUD. However, the device can be calibrated for accuracy (add or subtract a few mph, as needed). It also shows direction (North, East, South and West; when going in between, both lights are lit (e.g. both N and W when pointed northwest). The cord is unsightly, but if you saw my daughter's car, that would be the least unsightly thing you'd notice (think pizza boxes and water bottles). It was not obvious to me how to position it so that the display was perfectly straight up and down (if that matters to you) because her dashboard is curved. I found the best orientation and left it at that. It comes with a reflective rectangle, but making that match up to the display was not an obvious task and frankly the display is bright enough without it (although I have not observed it during night driving). This device is so cheap it's really a wonder why anyone would go without a heads-up display. Well, I think my fussy wife might object to the visible cord and even seeing the device on her dashboard. But for an after-market device, I find it perfectly suitable.
Review: Heads Up Disappointment - It looks the part, but does not function as advertised. The instructions are unclear and the set-up is difficult. For me there is a 10 mph discrepancy in the mph.

## Features

- Enhance Driving Safety—The GPS HUD (Head-Up Display) projects real-time speed, compass direction, and driving data directly onto the windshield. By keeping your attention on the road and reducing dangerous glances at the dashboard, it helps prevent accidents and improves driver focus, resulting in a safer journey.
- Auto-Dimming Technology—A built-in light sensor automatically adjusts the display brightness based on ambient lighting conditions. Enjoy clear visibility in bright sunlight and a comfortable, glare-free view while driving at night, without causing eye strain or distraction.
- Universal Compatibility—Suitable for all vehicles that do not require an OBD connection (cars, trucks, SUVs). GPS satellite positioning provides accurate speed tracking with an accuracy of ±0.5%. Easily switch between km/h and mph for international use. Simple plug-and-play installation via USB power.
- Dual-Satellite GPS System—Advanced GPS technology with a built-in compass provides accurate speed measurements and directional guidance. The large, easy-to-read display shows speed, direction, travel time, and distance. Ideal for highway driving, road trips, and daily commutes.
- Sleek and unobtrusive design—the compact HUD display reduces dashboard clutter while providing essential driving information at a glance. The adjustable projection angle ensures optimal viewing. Includes an anti-slip mat, USB cable, and user manual for quick setup in just a few minutes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D97JWJX4 |
| Best Sellers Rank | #1,093,274 in Automotive ( See Top 100 in Automotive ) #660 in Automotive Speedometers |
| Brand | YAOUZICN |
| Brand Name | YAOUZICN |
| Customer Reviews | 3.6 out of 5 stars 19 Reviews |
| Item Dimensions | 3.92 x 2.56 x 0.79 inches |
| Item Weight | 5.28 ounces |
| Item dimensions L x W x H | 3.92 x 2.56 x 0.79 inches |
| Manufacturer | Yaouzicn |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |
| Model | H4 |
| Number of Items | 1 |
| Part Number | M23 |

## Product Details

- **Brand:** YAOUZICN
- **Item Weight:** 5.28 ounces
- **Item dimensions L x W x H:** 3.92 x 2.56 x 0.79 inches
- **Manufacturer:** Yaouzicn
- **Material:** Acrylonitrile Butadiene Styrene (ABS)

## Images

![Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles - Image 1](https://m.media-amazon.com/images/I/51+vA0SyfEL.jpg)
![Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles - Image 2](https://m.media-amazon.com/images/I/71vK+l-ghqL.jpg)
![Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles - Image 3](https://m.media-amazon.com/images/I/81851C+rXqL.jpg)
![Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles - Image 4](https://m.media-amazon.com/images/I/61lrcjc+8DL.jpg)
![Car GPS HUD (Head-Up Display) – H4 Digital Speedometer with Auto-Dimming, Real-Time Speed and Compass, KM/H Switchable, Windshield Projection Display, Compatible with All Vehicles - Image 5](https://m.media-amazon.com/images/I/71fBF5KZOSL.jpg)

## Questions & Answers

**Q: No display on screen, no power**
A: Check if the USB cable is damaged. Replace the USB cable for testing, and prohibit the use of voltages exceeding 5V.

**Q: No speed**
A: The flashing power satellite icon indicates satellite search status for underground parking garages, tunnels, and overpasses. When obstructions prevent satellite connection, move the vehicle to an open area to restore normal operation.

**Q: After the vehicle stops, the speed will still be displayed.**
A: Underground parking garages, tunnels, overpasses, and shielding may cause unstable signals and satellite drift. Please drive to an open area.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Inexpensive and useful
*by R***E on July 6, 2025*

This worked pretty well. I have a heads-up display on my car, so I wanted to get one for my daughter. Her speed control is not very good. She tends to drive too fast, then too slow -- not at a steady speed. I am hoping that the digital readout will make her more conscious of her speed. Since I started using a car with an integrated heads-up display, I've become much more conscious of my speed. It's easy to install. I would recommend getting a USB hub as it will use up one of the USB ports (nowadays, those are cheap and available). It only does speed measurement and it's as accurate as GPS can be, which is to say not as perfect as an integrated HUD. However, the device can be calibrated for accuracy (add or subtract a few mph, as needed). It also shows direction (North, East, South and West; when going in between, both lights are lit (e.g. both N and W when pointed northwest). The cord is unsightly, but if you saw my daughter's car, that would be the least unsightly thing you'd notice (think pizza boxes and water bottles). It was not obvious to me how to position it so that the display was perfectly straight up and down (if that matters to you) because her dashboard is curved. I found the best orientation and left it at that. It comes with a reflective rectangle, but making that match up to the display was not an obvious task and frankly the display is bright enough without it (although I have not observed it during night driving). This device is so cheap it's really a wonder why anyone would go without a heads-up display. Well, I think my fussy wife might object to the visible cord and even seeing the device on her dashboard. But for an after-market device, I find it perfectly suitable.

### ⭐ Heads Up Disappointment
*by R***K on December 24, 2025*

It looks the part, but does not function as advertised. The instructions are unclear and the set-up is difficult. For me there is a 10 mph discrepancy in the mph.

### ⭐⭐⭐⭐⭐ Great product
*by J***N on October 17, 2025*

Unobtrusive, good image projection, clear colorful image on windshield, cable provided is long enough to reach rear power source. Excellent accuracy. Could have better use instructions.

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-08-25*