wiiyii OBD2 Gauge Display Car HUD Head Up Display,Speedometer for Car P8

I drive a 2018 subaru impreza hatchback. Was very easy to install, simply plug it in and stick it to your dash or windshield. Hardest part about installing it for me personally was finding a place where it would fit and had a flat surface to stick to. The shape of it is a little bit awkward and my A pillars weren’t quite wide enough to stick it to and not have it be kind of an eyesore but the underside of the top part of the dash where my clock is was a good spot for it. All of my stock gauges in my cluster work perfectly fine but seeing as it’s a base model impreza I only have my tach, odometer, fuel gauge and speedometer so I wanted something that could show me oil and coolant temperature at the very least and this display does a great job of that as well as a few other indications that I find convenient. I do wish it could display oil pressure but if something goes wrong with my oil pressure the idiot light on my dash will come on so it’s not the end of the world. I was skeptical about the displays functionality seeing a bunch of reviews saying the auto sleep doesn’t work consistently and all these other issues people have with it but I have not had a single issue with it. Others have said they set the auto sleep to when the battery reaches 13.6v or so but theres an option in the settings to set the auto sleep to “RPM” so that it turns off whenever the car isn’t running and it has consistently turned off automatically when I shut the engine down. Others have also had issues with an inaccurate speed indication on the display vs their own speedometer but since I first plugged it in it has been accurate within +/- 1mph and there is a setting to adjust speed compensation so the speed indication reads more accurately. Product is light and made of plastic so I wouldn’t imagine it’s terribly durable if it falls on the ground or is hit by something hard but seeing as it should just be stuck to the windshield or dashboard it should generally be out of harms way. There is a brightness setting that includes an “auto” option so that the light sensor on the back of the display can auto adjust based on conditions in the car and I haven’t had an issue with it being too bright at night. Overall I would honestly say it’s worth the price if you really care about being able to see oil/coolant temperature, battery voltage, intake pressure, MAF volume, fuel flow, and even boost for those with turbocharged engines, etc. And if you have a broken tach or speedometer or something that adds even more value.

I've used a few of these type of HUD before, and a persistent problem I've had is that they won't shut off when you turn the car off. This drains the battery, which makes the whole thing not worth the effort. This HUD worked pretty darn good out of the box, and after a brief calibration, it was perfect for everything I wanted to do. I've mounted it on the dash above the steering wheel using some of the included Velcro, which sticks very well. To calibrate it, drive the car at a few different speeds and make a note of how far you are off between the actual speedometer and the HUD, then stop the car and adjust the speed parameter up or down depending on which way you were off. I've calibrated mine so that it's pretty accurate from about 15 to 70, which is most of the time you would be using. Definitely great value for the money. It's this, a backup camera, and Android Auto/Carplay for the big three of car upgrades.

The GPS derived speed is unacceptably inaccurate. When I noticed unreasonably high (4 MPH) speeds I checked it against both the car (known to be <1 MPH high) and two other Garmin GPS devices. If the speed is unacceptably inaccurate, I have to assume none of the GPS derived data is worthwhile. I also do not like the very limited degree to which the display screens can be modified to display the desired data.

Works exactly as it should. I remember seeing someone upset about how it reads boost. I bought it specifically for this reason and can confirm that your are locked to bar reading only on the analog face display..no modification for psi. HOWEVER, psi IS ON THERE, you just have to share it with mph which is on top and psi on the bottom. Reading appear to be spot on, just allow for 1-2 digit variance just to be safe. I did not experience any detonation of the unit as posted in one review, but I do unplug it after use because it does get warm to the touch. Easily 4 out of 5 for use on my Ecoboost Ford Taurus.

So far, it has no problem turning off/on automatically in a 2013 Escape. Kinda said the boost gauge dedicated screen only does bar and cannot change to psi. Screen is smaller than I was expecting from picture but is still visible. The velcro mount it comes with is terrible, did not want to stick to dash at all and immediately started leaving glue on it from trying. An alternative screen with MPH has a boost gauge in PSI, so that is the screen I use. By default, for some reason, the gauge is set to read speed at 107% of input +2mph The gauge would look better if they could put the raised lettering on the shell instead of the lip sticking out, the lip looks like it should be a removable install piece that looks out of place. Overall, it is doing what I wanted, giving me a boost gauge without running vacuum hose into the engine somewhere If it could be redesigned without the lip on bottom, I would bump a star, if they added the function on the boost gauge to change to PSI, this would end up as a 5 star for the price from me

I got the for the GPS speed. When its first powered on, you can select OBD (default) or GPS (press >). I selected OBD by mistake and it would display the speed of my vehicle speed sensor, which is way off due to taller tires. I tried adjusting the speed settings and couldn't get it close. I then unplugged it from the obd port for a few seconds, plugged it back in and selected GPS. The speed was spot on when compared to Google maps speed. But I noticed when in GPS mode, it wont display the code that causes my check engine light to come on. It does when its in obd mode. It has quite a few options when in obd mode to display different data streams from the ecu. Engine coolant temp, rpm, etc. I thought the display was going to be too small once I got it, it is small, but the font size is about perfect. I definitely recommend this at this price point.

I have an aftermarket tuned AMG Benz and use this exclusively for monitoring my boost. It's perfect for that, as it's small and you can mount it in multiple ways and it has settings to adapt the screen display for whatever orientation works best for you. Plenty of people skewered the reviews for reasons that aren't the fault of the device. The temps etc that it displays are simply whatever the OBD data stream tells it- that's it. The speed may be a few MPH different from your odometer, but that's the speed it's being given by the data stream- OR one can use the GPS to determine the speed more accurately. Speedometers in cars are often incorrect- as they aren't required to be, as they have up to 10% variability allowed. This actually has the potential to be more accurate if you adjust the offset to "correct" the data stream. It doesn't interpret data- it simply reports it. I've had it in my car for a year now and no issues at all. On rare occasion, I'll use it to check other measurements, but it's really only being used to show my boost. This is by far the best HUD I've tried, and I've tried many of them and quite a few hit the trash or got returned for being awful. If you have a very early OBD vehicle, you won't likely get ALL the data streams you want and it's not the tool's fault- it's your car. Some people are just unrealistic and don't know enough to know what's at fault. For a simple display that takes very little room- you can't beat it!

I was looking for the smallest HUD I could find that could give all the features of being plugged into OBD2 and this one fit the bill. I installed it in my 2013 Acura TL over a year ago now and it has performed flawlessly. Initially it read the mph a bit higher than I was actually going. I had to bump the adjustment value down a couple of points. I believe the default value was 107 and I set it to 105. It's perfect now but at speeds above 70 mph it reads two points higher. There is another option in the settings to fix this I believe but I didn't bother. I have no problem seeing the screen during the day and it automatically dims at night. I have my screen setup up to show mph, clock, rpm's and coolant temp. The clock is a 24hr format and cannot be set to a 12hr format which is a bit of a bummer. I've had zero issues in the year that I've owned this. It comes on when I turn the car on and shuts off when the car does. It has not caused any lights to come up on the dash or interfered with any of the car's functionality in any way. I hope in continues to works for years to come but if does die, I'd buy another right away.

I'm driving somebody else's car at the moment, and because I sit a high in the seat being very tall, I find it hard to see this speedometer especially if it's very bright. . This has a very small rectangular screen and it sits quite obtrusively on the dash mat in front of me. It has a lot of options that can be displayed, but all I wanted was the speed, so I just left it with that, and it's perfect. It's a paperwhite display which I like. Very much fit for purpose. .

Product is good but. If you're using a modify car, that doesn't have a OEM ECU it's possible that is can lock you out or cause issues to the ecu would be Better to use GPS option Share a video or photo

軽自動車のOBD接続でちゃんと稼働し、車のシステムに対して変な影響もないようで一安心。表示数値は正しいようだ。付属の説明書は非常に小さい印刷文字の機械翻訳らしい日本語だけなのに対して、本体の表示は中国or台湾or英語だけで一致せず分かりにくかった。本体形状が、ピラー取り付けも考慮したものなのかもしれないが、どうも異形の感じでイマイチで置きにくいし収まりも悪い。

It met my expectations and requirements

Nice, modern-looking gauge. Easy to install. No holes to cut. The wire was long enough to feed through the dash to the OBD2 port. I used an OBD2 splitter so I could use my programmer and gauge at the same time. The only thing I don't like is the stand-alone turbo boost gauge, which is what I bought it for, reads in BAR and not PSI and it can't be changed. There is another screen with the km/h and boost pressure number combined but it is not as good looking as the stand-alone boost gauge screen. Not too huge of a deal but PSI is what I like to see rather than convert in my head where I'm at all the time. Overall good gauge for the money