ACECAR Head Up Display Car Universal Dual System 3.5 Inches HUD, Speedometer OBD2 GPS Interface, Speed, Engine RPM, OverSpeed Warning, Mileage Measurement, Water Temperature, GPS Mode for All Vehicle

Loved the HUD. This is the closest to OEM that you’re going to see. I read a lot of the reviews stating that they had to calibrate the device after plugging it in. I can’t say that I had to do anything. I used the OBD2 port to wire the device and ran the wire through the A pillar and down the door frame and installation took all of 3-5 minutes. The trick is to place the device around until you get the desired projection, mark it and then stick with the given sticky pad. It hasn’t moved, and I even have it placed in such a manner that it’s near impossible for myself or the passenger to see that there’s even a device there. Everyone that’s seen it so far has asked me if the car came with it. Read the instructions, and I can’t stress that enough. If you just plug this in with the USB cable, you’re going to have a hard time calibrating this to read accurate speeds. As for the display itself, I think less is always more. You aren’t going to find an after party HUD that looks like something built with the vehicle due to the messiness of information and lack of it being built into the dash panel. This is great. Reads speed, and even shows a freakishly accurate rev counter. Try it out, you won’t be disappointed.

I picked this one because you don't have to have all the extra garbage on your windshield. All I wanted was the speedometer. Simpler looks more stock anyway. I ran only the speedometer the first few months, only recently did I turn on the RPM line (pictured). I like having that option. I can add more too if I wanted, but overall, HUDs look better when they're simpler. If I want to know more about my car, I'll use my dashboard or bluetooth OBD reader.Instructions were simple, and in english. Not sure why so many are having issues with this step.Picture looks a little blurry but it actually looks better than that. On the brightest days around noonish, it is a little harder to see, but still visible. This can be alleviated by using the included darkened transparent film. After a weeks, I put the film on to try it out, but in the end, I removed it. I prefer the look of my windshield without the square on it and I really didn't need it anyway. At night, it's very bright.I took one star away because of the "auto" setting for brightness. I mean, it's the only real option unless you want to change it manually all the time. I feel the brightness should have several levels of Auto. At noon-time, at it's highest brightness, I can see it, but I feel like it should do better to be more usable in that scenario. On the other hand, at night, it's brighter than it needs to be. Brightness settings should not be 1, 2, 3, or "Auto." It should be Auto 1, Auto 2, or Auto 3, which each being brightest for daytime (because it'll never be too bright with the sun out), but a dimmer night setting. Like each Auto 1, Auto 2, etc could be a differently level of dimmness at night.That's a problem I find with most chinese electronics, not quite bright enough during the day, but too dang bright at night as if they're compensating at night for what they can't do during the day.Overall, I do recommend this, despite my one complaint. My complaint is common among all HUDs so if you had to choose one, pick this one.You will have to fiddle with the settings to get it calibrated to your vehicles speedometer but it's not hard, you just gotta read the instructions.Most of the bad reviews on here are because no one wants to read instructions. They plug it up and then complain.

This aftermarket HUD is perfect for the car. Bought it for my son so he wouldn't have to look away from the road but I really enjoy using. If they could come up with a way to have more information like fuel as well as speed that would be great.

Worked wonderfully and I loved it for 5 months. Then started draining my battery and causing 6-10 "U" Can BUS Communication error codes on start up. I bought three of these for three different vehices and so far two of the three failed in this way. For the five months it worked it was awesome but it is obviously unusable with such a short life and troublesome failure mode.

Very bright and visible during the Day, minor speed settings tweaking to calibrate with vihechles speed but works great with my WRX