2024 New Listing M2 GPS Speedometer, Heads Up Display, car digital speedometer, miles digital speedometer, gadgets compatible with all vehicles

Easy to install, works perfectly , visible when sunny / bright

Looks good, is neat and bright BUT it is not accurate. It over-reads your speed by about 4% and cannot be adjusted in any way. The whole point of having this is that you can see you actual, true speed.

This is not a bad wee unit for the money. I had it fitted to my Motorhome as the speedo dials are not easy to see especially in the sunshine. The unit worked well giving a visible image reflected in the windscreen with speed I reckon about 10% higher than actual which is not a problem to me better safe than sorry. The image was always visible even in sunshine. You do get a double image if used direct onto windscreen but not a big dealA couple of points to note however.It only reads in MPH and you cannot switch to KPH if you wish to use it abroadbut they market an upgraded version with this facility which I have now purchased to use abroadDoes take a couple of minutes to pick up satelites but never lost connection after thatThe "manual is shocking" but set up simple as it is plug and playThe adhesive tape is useless on the dashboard you need to use 3M or Gorilla double sided tapeThe reflected image in the windscreen disappears if you have polarising sunglasses on, however using the reflecting screen provided solves this problem but the panel is quite visible on the windscreenOverall it does what it says and isn't expensive.

Otherwise it's ok

I'm not totally impressed with the finesse on the design of this HUD. First of all, it's quite a bulky unit even though it's quite slim, something that needs to be installed on your dash needs to be as small and discrete as possible, along with the not-so-long USB cable provided that also isn't discrete and nor does it plug in discretely.A lot of not-so-discrete mentioned here. I had this installed in my partners car and he's got a heated windscreen, so this doesn't help with trying to get a GPS signal, but in the open, it's not so bad and it doesn't do a bad job in ref to accuracy with my GPS speedo on my mobile. I'd say they are in sync if I'm on a straight and on a steady speed, but within inner cities, it's quite flaky in being accurate and on start-up, it can take a while, around 3 to 5 minutes to start to get a signal from the satellites, worse in poor weather conditions.Also, it's quite a faf trying to get the unit in the correct place aligned with the reflector on the window.The funny part is that in the poorly provided instructions, they have mentioned that if you don't get 0mph showing on the display, hold the unit out the window until it gets a signal. Seems the manufacturer is aware of these issues.

Bright display highly accurate.Only down size is no way to reverse image for direct view

I like the design of this display in principle. The LCD layout is large and clear, and on my windscreen, it does reflect and invert nicely to give a speed indicator that’s similar to (if a bit more retro-looking than) the built-in one I saw when test-driving a Hyundai Ioniq 5 (which incidentally was a bit disappointing).But ultimately, I’d have to say it doesn’t work very well. Getting it set up in the right place in the first place is a faff, especially if you’re going to try and discreetly run the cable around the A-pillar (which is optimistic at best) instead of having a trailing USB-C cable running up the centre of your dashboard. The adhesive strip supplied isn’t very strong, and also doesn’t peel away very cleanly either. Different car designs will present different levels of difficulty for setting this up, but I don’t imagine there are many cars where setting this up will be easy.And once in place, it spends far too long searching for satellites (with a blank double-hyphen display instead of a speed indicator) rather than displaying a speed. The advice in the badly-written slip of paper that passes as a ‘manual’ is to hang the device outside your window for a few minutes until it picks up some satellite connection- which is useless if you’re driving, or if you’ve gone to the trouble of carefully embedding the wiring into your car so you can’t easily move it. In the South West of the UK, GPS signals should be more consistent than this device would have you believe, and if it struggles to get signals through the front glass, then it’s not working.When it does manage to work, I wasn’t convinced that the speed was completely accurate either. Between the two cars that I use, there’s clearly a difference in the speedometer- one of them is a Renault that over-reports my speed and the other is a Tesla which I believe reports the speed quite accurately (and tends to match what roadside speed indicator displays tell me). This HUD was often 3 or 4 mph off from what my car display was telling me while I was testing it, but weirdly, it wasn’t always off in one particular direction- sometimes it would be high, sometimes it would be low. That leaves me to conclude that if I was using it as my sole speedometer (or even if I wasn’t), I’d be reluctant to trust it.Sadly all the promises about “compatible with all models” that look a bit too good to be true for the twelve quid price tag (at time of writing), do turn out to be a bit too good to be true. A terrible instruction sheet and consistently sketchy GPS connection leave me unimpressed by this neat little device that I really wanted to like.