---
product_id: 658198748
title: "H4 Car HUD Head-Up Display - GPS Speedometer with Auto-Dimming, Real-Time Speed and Compass Direction, KM/H or MPH Switchable, Windshield Projection Display for All Vehicles."
brand: "yaouzicn"
price: "R$386"
currency: BRL
in_stock: true
reviews_count: 8
category: "Yaouzicn"
url: https://www.desertcart.com.br/products/658198748-h4-car-hud-head-up-display-gps-speedometer-with-auto
store_origin: BR
region: Brazil
---

# Auto dimming for night drive Switch KM/H & MPH units Real-time speed & compass H4 Car HUD Head-Up Display - GPS Speedometer with Auto-Dimming, Real-Time Speed and Compass Direction, KM/H or MPH Switchable, Windshield Projection Display for All Vehicles.

**Brand:** yaouzicn
**Price:** R$386
**Availability:** ✅ In Stock

## Summary

> 🚦 Drive smarter, not harder — see speed & direction in a glance!

## Quick Answers

- **What is this?** H4 Car HUD Head-Up Display - GPS Speedometer with Auto-Dimming, Real-Time Speed and Compass Direction, KM/H or MPH Switchable, Windshield Projection Display for All Vehicles. by yaouzicn
- **How much does it cost?** R$386 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/658198748-h4-car-hud-head-up-display-gps-speedometer-with-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

- • **Dashboard decluttered:** Clean HUD design projects only essential info, enhancing focus and driving smoothness.
- • **Seamless night comfort:** Auto dimming display adjusts brightness to reduce glare and eye strain after dark.
- • **Your ultimate co-pilot:** Instant access to speed and compass data keeps you oriented on every journey.
- • **Eyes on the road, always:** Projects speed & direction on windshield for safer, distraction-free driving.
- • **Global-ready speed units:** Easily toggle between KM/H and MPH to match local driving standards anywhere you go.

## Overview

The Yaouzicn H4 Heads Up Display is a compact, easy-to-install HUD that projects your real-time speed and compass direction directly onto your windshield. Featuring an auto-dimming screen for optimal visibility day or night, it supports switchable KM/H and MPH units for global use. Designed to reduce dashboard clutter and keep your eyes on the road, this device enhances driving safety and awareness for every trip.

## Description

Buy Yaouzicn H4 Heads Up Display for Car Auto Dimming Speedometer Shows Real Time Speed Compass Direction with Switchable KM/H/MPH Units on Windshield.: 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: Compact, inexpensive, and it WORKS! - The gas gauge in my 67 Dodge Charger doesn't work, so I filled my tank according to how many miles since last fill-up. When the Speed and odometer died to, I needed a quick fix. This was it, and I LOVE it. It's compact, and I discovered it doesn't even need to be ON the dash to work right: I mounted below dash where a radio used to be, it's very discreet yet gives me clear indication of speed and milage, exactly what I needed.

## Features

- 1.Drive with your eyes confidently on the road. The H4 heads up display for cars projects your real time speed and driving direction clearly onto the windshield. No more dangerous glances down at your dashboard, making every trip safer from the very first drive.
- 2.Night driving just got safer and more comfortable. This smart speedometer for car features an auto dimming screen that automatically adjusts its brightness to match your surroundings, eliminating harsh glare and eye strain during long journeys or night hauls.
- 3.A universal companion for all your vehicles and travels. Whether you're driving domestically or abroad, this versatile heads up display allows you to switch speed units between KM/H and MPH with a simple press, perfectly adapting to different roads and regulations.
- 4.Your essential co pilot for any adventure. From navigating winding mountain trails to long highway stretches, this reliable heads up display for car gives you instant access to speed and compass data, helping you stay oriented and in control no matter where the road takes you.
- 5.Experience a cleaner, more focused cockpit. This intuitive car HUD declutters your dashboard by projecting the key information you need current speed and direction right in your line of sight, reducing distraction and helping you become a smoother, more aware driver.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D97JWJX4 |
| Best Sellers Rank | #94,408 in Automotive ( See Top 100 in Automotive ) #57 in Automotive Speedometers |
| Date First Available | July 11, 2024 |
| Item Weight | 5.3 ounces |
| Item model number | H4 |
| Manufacturer | Yaouzicn |
| Product Dimensions | 3.92 x 2.56 x 0.79 inches |

## Product Details

- **Brand:** YAOUZICN
- **Item Weight:** 0.33 Pounds
- **Item dimensions L x W x H:** 3.92 x 2.56 x 0.79 inches
- **Manufacturer:** Yaouzicn
- **Material:** Acrylonitrile Butadiene Styrene (ABS)

## Images

![H4 Car HUD Head-Up Display - GPS Speedometer with Auto-Dimming, Real-Time Speed and Compass Direction, KM/H or MPH Switchable, Windshield Projection Display for All Vehicles. - Image 1](https://m.media-amazon.com/images/I/51+vA0SyfEL.jpg)

## Available Options

This product comes in different **Model** options.

## 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.

### ⭐⭐⭐⭐⭐ Compact, inexpensive, and it WORKS!
*by J***R on July 1, 2025*

The gas gauge in my 67 Dodge Charger doesn't work, so I filled my tank according to how many miles since last fill-up. When the Speed and odometer died to, I needed a quick fix. This was it, and I LOVE it. It's compact, and I discovered it doesn't even need to be ON the dash to work right: I mounted below dash where a radio used to be, it's very discreet yet gives me clear indication of speed and milage, exactly what I needed.

### ⭐ 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.

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---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-05*