---
product_id: 442536877
title: "Heads Up Display for Cars, Digital Speedometer for Car A8 with OBD Function, 5.5 Inch Large Screen, HUD Speedometer for Car for All Vehicles (OBD2 Speedometer A8)"
brand: "wiiyii"
price: "A$120"
currency: AUD
in_stock: true
reviews_count: 8
category: "Wiiyii"
url: https://www.desertcart.com.au/products/442536877-heads-up-display-for-cars-digital-speedometer-for-car-a8
store_origin: AU
region: Australia
---

# Real-time voltage & speed alerts 5.5-inch ultra-large HD display OBDII/EOBD car diagnostics & failure alerts Heads Up Display for Cars, Digital Speedometer for Car A8 with OBD Function, 5.5 Inch Large Screen, HUD Speedometer for Car for All Vehicles (OBD2 Speedometer A8)

**Brand:** wiiyii
**Price:** A$120
**Availability:** ✅ In Stock

## Summary

> 🚗 Drive Smarter, Not Harder — Stay Ahead with Heads Up Display!

## Quick Answers

- **What is this?** Heads Up Display for Cars, Digital Speedometer for Car A8 with OBD Function, 5.5 Inch Large Screen, HUD Speedometer for Car for All Vehicles (OBD2 Speedometer A8) by wiiyii
- **How much does it cost?** A$120 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/442536877-heads-up-display-for-cars-digital-speedometer-for-car-a8)

## Best For

- wiiyii enthusiasts

## Why This Product

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

## Key Features

- • **Advanced Car Diagnostics:** Detect, alert, and clear vehicle faults without a mechanic’s visit.
- • **Effortless Unit Switching:** Toggle between kilometers and miles to suit your driving style or region.
- • **Comprehensive Driving Data:** Monitor speed, water temp, voltage, distance, and get speeding alarms in real-time.
- • **Crystal-Clear 5.5" HD Display:** See your speed and vital stats at a glance, no squinting required.
- • **Universal OBDII/EOBD Compatibility:** Seamlessly connects with most cars post-2003/2007 for instant data access.

## Overview

The Heads Up Display A8 is a cutting-edge 5.5-inch HD digital speedometer designed for OBDII/EOBD compatible vehicles (post-2003/2007). It delivers real-time speed, voltage, water temperature, and distance data, plus advanced car diagnostics including fault detection and clearing. With multi-function alerts and easy unit switching, it transforms your driving experience into a safer, smarter journey.

## Description

Buy wiiyii Heads Up Display for Cars, Digital Speedometer for Car A8 with OBD Function, 5.5 Inch Large Screen, HUD Speedometer for Car for All Vehicles (OBD2 Speedometer A8): Speedometers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Very easy to install. - Large, brite read out. Very easy to install. I read some reviews that the speed didn't match the speed odometer. If you buy this unit, be sure to download an owners manual from online. It is model A8. Then you can calibrate the speed and RPMs to your car or truck. Also explains how to operate it.
Review: Buen producto - Compré este display especialmente por la información de temperatura del motor. Hay veces que me distraigo del millero, pero con esto resuelvo definitivamente mi preocupación. Valoró el artículo desde su presentación. Bien empacado, bien organizado, se ve bien. Ofrece muchísima información y va directamente conectado del OBD. Creo que el precio es un poco exagerado en comparación con otros en el mercado, pero este definitivamente ofrece toda la info que necesitas del millero. Puedes elegir qué informaciones poner. Yo particularmente dejé solamente la velocidad y la temperatura

## Features

- 【APPLICABLE VEHICLES】——HUD A8 is only applicable to OBDII and EOBD, suitable for automobile of production years (OBDII and EOBD were used in other regions after 2003 and 2007 in other regions), but doesn’t support OBD I and JOBD.
- 【LARGE HD DISPLAY】——A8 HUD is designed with an ultra-large HD 5.5-inch display, with clearer information display and multi-function switching, allowing you to monitor speed more comfortably, bringing you a better driving experience and more fun.
- 【RICH DISPLAY DATA】——Almost everything you may need to read during driving will be displayed by this HUD, including vehicle speed, water temperature, voltage, driving distance measurement, voltage alarm, speeding alarm, free switching between kilometers and miles. It’s a good helper for your driving.
- 【MULTI-FUNCTION】——A8 HUD is upgraded with new functions, making it different from the traditional HUD on the market and more competitive. Since A8 is based on reading data from the trip computer, it can be used to read automobile data information, such as car failure detection, failure alarm and failure clearing. A multifunctional tool to help you understand your car.
- 【QUALITY ASSURANCE & WORRY-FREE SUPPORT】——CE FCC ROHS Certification.If you have any questions or concerns, in addition to our products, we also provide friendly customer service, please feel free to contact us, we promise to make you 100% satisfied.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material Type | Plastic |
| Item Weight | 0.2 Kilograms |
| Item Dimensions | 4.92 x 2.95 x 0.59 inches |

## Product Details

- **Brand:** wiiyii
- **Media Type:** DVD-ROM
- **Color:** colorful
- **Screen Size:** 5.5 Inches
- **Display Type:** LED

## Images

![Heads Up Display for Cars, Digital Speedometer for Car A8 with OBD Function, 5.5 Inch Large Screen, HUD Speedometer for Car for All Vehicles (OBD2 Speedometer A8) - Image 1](https://m.media-amazon.com/images/I/61T3JfK9TuL.jpg)

## Questions & Answers

**Q: What is the warranty .**
A: I think the default warranty is 6 months. I am not 100% sure though.

**Q: Is an OBD connector required, or does it just connect  to the USB charging port?**
A: Hello, the product only uses the USB interface to connect

**Q: La distancia de viaje se acumula o se reinicia con cada viaje??**
A: El q yo Tengo no tiene solo te dice la velocidad a la que vas y no acumula la distancia

**Q: can the speed be adjusted, mine is off?**
A: Yes, it can be adjusted. Read through the manual and follow the instructions.
I had to adjust mine twice, and now it is in synch with the Dash.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very easy to install.
*by D***P on December 12, 2025*

Large, brite read out. Very easy to install. I read some reviews that the speed didn't match the speed odometer. If you buy this unit, be sure to download an owners manual from online. It is model A8. Then you can calibrate the speed and RPMs to your car or truck. Also explains how to operate it.

### ⭐⭐⭐⭐⭐ Buen producto
*by M***L on October 27, 2025*

Compré este display especialmente por la información de temperatura del motor. Hay veces que me distraigo del millero, pero con esto resuelvo definitivamente mi preocupación. Valoró el artículo desde su presentación. Bien empacado, bien organizado, se ve bien. Ofrece muchísima información y va directamente conectado del OBD. Creo que el precio es un poco exagerado en comparación con otros en el mercado, pero este definitivamente ofrece toda la info que necesitas del millero. Puedes elegir qué informaciones poner. Yo particularmente dejé solamente la velocidad y la temperatura

### ⭐ Good product, but warranty response is a ZERO!
*by L***N on January 8, 2026*

Very good product performance, but it completely failed after a year and three months. It continuously resets as if it is just powering on. Seller ignored my messages until I reported that to Amazon. After more messages, seller offered a 20% credit. A 2-year warranty implies replacement, not pro-rated adjustment, like tires are. Seller continues to ignore my messages, and although I've reported this to Amazon repeatedly, I haven't received a warranty replacement of the item. Just so you know what to expect if you have problems . . . .

## Frequently Bought Together

- Head Up Display, Car HUD P8, OBDII & GPS Dual System, The 1st Model in The Market Can be Installed on A-Pillar Trim (2)
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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-01*