
















🚦 Drive smarter, not harder — your car’s new digital co-pilot!
The wiiyii P4 OBD2 Heads Up Display is a cutting-edge digital speedometer that projects vital driving data directly into your line of sight using multi-angle adaptive display technology. Combining OBD2 and GPS inputs, it delivers real-time speed, slope, turbo pressure, fuel consumption, and more, while smart alarms alert you to overspeeding, engine temperature, and fatigue. Designed for private cars from major brands, it offers personalized displays and plug-and-play installation, enhancing safety and driving awareness for modern drivers.














| ASIN | B0F4MKJSZT |
| Best Sellers Rank | #1,814,374 in Automotive ( See Top 100 in Automotive ) #985 in Automotive Speedometers |
| Date First Available | June 27, 2025 |
| Item Weight | 1.41 ounces |
| Item model number | P4 |
| Manufacturer | wiiyii |
| Product Dimensions | 7 x 2.5 x 3.5 inches |
B**L
Love it for my LS
I put an LS 6.0 into my 1964 Chevy C10. I had no speedo. I wired this up and it does the trick. It's nice and big, easy to see, bright and just works. Why buy a GPS sender for $300 or a new gauge panel for $800?
J**I
En alta velocidad demora en ajustarse a la velocidad real , la precisión no es tan rápida como esperaba
Y**A
Defective product
It is not working
T**R
Should he freee
Mph is off no need to waste your money!!!
M**Z
Not good work
Not good work
M**K
Out of the box is easy to set up, good size, easy to view, turns off/on with the vehicle. This unit was reading too high at highway speeds, but as per seller there is speedo adjust/calibration, after that I have it working accurately as compared to other gps and vehicles. Perfect for my need of an accurate speedo -as my vehicle speedo is off due to oversized tires. I would recommend if using for similar purpose.
N**L
Easy on the eyes and ideal for those of us used to digital Speedo and straining to deal with the old dial type.
夘**直
とても素敵商品ですありがとうございました
K**E
I have this particular model, I installed it, easily fitted and it looked the part, unfortunately is is very laggy when connecting to satellites, so much so that I had to take it out. I could drive for up to an hour before it would connect, very disappointing and literally useless. It could be a windscreen issue, but why then did it occasionally work. I didn't complain about it, I just tossed it in a drawer and looked elsewhere. I wondered if there was an antenna add-on that might have improved it's satellite performance, however I have been unable to locate one. At this stage it is an $80.00 White Elephant. Unfortunate, I had high hopes. All I was looking for was an accurate speed checker.
J**R
Plug and Play works great does exactly what it says
Trustpilot
4 days ago
3 days ago