Tesla HUD vs Dashboard Screen: Which Add-On Display Fits Your Car

Tesla HUD vs Dashboard Screen: Which Add-On Display Fits Your Car

Tesla HUD vs Dashboard Screen: Which Add-On Display Fits Your Car

A Tesla puts everything on one screen in the middle of the car. Speed, range, warnings, climate controls, the lot. That works fine until the moment you want to check your speed and realize you are looking fifteen degrees to the right of the road. Six add-on displays fix that in six different ways, and the difference between them is not screen size. It is whether the thing merely shows you data or actually takes over a job.

This guide sorts the six by what they do rather than what they cost. Prices move with the current early-access window and will move again after it, so the figures stay on the product pages where they belong. What does not change is the fitment, the format, and the one split that decides most purchases before a buyer even gets to the spec sheet.

1. The Split That Decides Most Purchases
2. Three Formats, Three Different Jobs
3. Highland and Juniper Owners: Three Options Only
4. The Three HUDs: Display Only
5. T3Pro vs F9 Pro: Almost the Same Money
6. S11 vs the 9.66 Cluster: Bigger or Brighter
7. The Front Camera Option, Honestly
8. Full Fitment Table
9. Frequently Asked Questions
10. The Bottom Line

1. The Split That Decides Most Purchases

Look at the six together and they do not form a ladder from cheap to expensive. They form two groups with a gap in the middle. Three of them sit in one price band and three sit in another, and the distance between the top of the lower band and the bottom of the upper band is wider than the distance between any two products inside either band.

That gap is not about inches. The three in the lower band draw a number on a small panel and nothing else. The three in the upper band take a data feed from the car, run an operating system, and put CarPlay on the glass. If you cross that line, you are not buying a bigger display. You are buying a second computer for the dashboard.

Which means the first question is not "how big" or "how bright." It is: do you want a readout, or do you want a screen that runs apps? Everything downstream follows from that answer. A readout is the right call for someone who wants their speed at eye level and resents the center screen for making them look away. A screen is the right call for someone who wants navigation and music without a phone mount stuck to the vent.

2. Three Formats, Three Different Jobs

The word "HUD" gets used loosely on listings, and it hides a real physical difference. Of the six products here, only one genuinely projects an image onto the windshield. The others mount something in the cabin and you read that object directly.

Embedded in the vent gap

The Mini HUD is 1.8 cm thick and sits inside the gap of the Tesla air vent. Nothing is drilled, no cable is cut, and nothing is stuck to the glass. From the driver's seat it reads as part of the dash rather than an accessory bolted on. That concealment is the entire point of this format, and it is also its limit: the panel is small because it has to fit a vent gap, so it shows numbers and warning lights, not graphics.

Panel mounted on the dash

T10, T3Pro, F9 Pro, S11 and the 9.66 inch cluster all fall here. The mount method differs — T10 uses self-adhesive double-sided tape, T3Pro uses a pre-drilled air vent design that keeps the vent usable, and the 9.66 inch cluster plugs into the factory connector and sits behind the steering wheel — but the principle is the same. You are adding a physical screen to the dashboard, and its size is whatever the housing allows rather than whatever a vent gap allows.

Projected onto the windshield

T2 is the only one that does this. It uses a curved reflective surface and a multi-layer optical coating to float an image above the dash, and the page is specific about the problem that coating solves: ghosting, the double image you get from a cheap reflector. It also adjusts brightness to ambient light so it does not glare at night. If what you actually want is a traditional head-up display — image in the glass, eyes never leaving the road — this is the only product in the range that delivers it, and the trade-off is that it carries the fewest features of the six.

This is the same instinct behind our guide to putting physical controls back in a Model 3 or Model Y: the question is never which part is best in isolation, it is which part fits the way you already drive.

3. Highland and Juniper Owners: Three Options Only

This is the single most useful thing on this page, and it is buried in variant dropdowns rather than stated anywhere obvious. If your car is a Model 3 Highland (2024 and later) or a Model Y Juniper (2025 and later), most of this range does not fit you.

Three products list those generations in their variants: F9 Pro, S11, and the 9.66 inch cluster. The three HUDs do not. The Mini HUD is the most explicit about it — its compatible-vehicle section says Model 3 2019 to 2023 with the note "not compatible with the 2024 Model 3 Highland," and its Model Y coverage stops at 2024. T3Pro's variants stop at Model 3 2019 to 2023 and Model Y 2019 to 2024. T10's stop at Model 3 2019 to 2023 and Model Y 2021 to 2024.

Read that table from the top down. On a current-generation car your shortlist is three items and all three are in the upper band. On anything older, all six are open to you and the choice becomes a genuine one. Section 8 has the exact variant wording for each product, because the year ranges do not line up neatly between them.

4. The Three HUDs: Display Only

All three sit in the lower band and none of them runs CarPlay. What separates them is where the image lands and how much data they pull.

Mini HUD — the one that disappears into the dash

The Mini HUD is a 1.8 cm multi-color LCD that slots into the air vent gap and shows speed as a bare number, plus battery percentage, gear position (P/R/N/D), turn signals, seatbelt warning, door-open warning and a low-battery alert. It draws 12 V from the factory 26-pin rear OBD connector under the rear console, through a plug-and-play harness. Nothing is spliced and no battery is involved.

Two things about this one deserve emphasis. First, the speed readout is a pure number with no mph or km/h text printed on the panel — it follows whatever unit your center screen is already set to, so there is nothing to configure. Second, it needs that 26-pin rear port to exist. The product page says to confirm the port before ordering, and it means it. If your car does not have it, this is the wrong product regardless of how much you like the form factor.

T10 — the most data, the least permanent mount

The T10 is a 7-inch panel that reports a wider set than the Mini HUD: power, lights, gear position, mileage, signal strength, braking, battery level, time, range, speed and tire pressure. It reads ambient light and switches between day and night brightness on its own, following the car's own display.

The mounting is where it differs, and it is worth knowing before you buy: T10 connects over a USB data cable and attaches with self-adhesive double-sided tape, not the OBD port. That makes it easier to move between cars and harder to make look factory. If you want the cleanest possible install, the Mini HUD wins. If you want tire pressure on the dash, T10 is the only one of the three that shows it.

T2 — the only true windshield projection

T2 floats its image above the dash using a curved reflective surface and a multi-layer optical coating. The page is unusually specific about what that coating is for: correcting distortion and killing ghosting, the double image that makes cheap reflector HUDs unreadable. It adjusts brightness with ambient light, so it does not glare at night or wash out at noon.

It also does something neither of the others does: it pairs with a phone over Bluetooth and mirrors navigation through an app, on both Android and Apple. Warning coverage is broader than the Mini HUD's — overspeed, low voltage, low battery, door open, seatbelt, brake warning light. What it does not do is tell you its screen size; the page lists weight, dimensions and materials but no display diagonal, so treat the image size as something to judge from the photos rather than from a number.

5. T3Pro vs F9 Pro: Almost the Same Money

These two are the closest pair in the range, and they are the pair most likely to be bought wrong. Both are 8-inch-class LCD panels at 1920 by 720, both offer a front camera as an option, and the price difference between them is small enough that it should not decide anything.

The real difference is coverage. T3Pro ships in two variants: Model 3 2019 to 2023, and Model Y 2019 to 2024. That is it — no Highland, no Juniper, and no left-hand or right-hand drive option. F9 Pro ships in four: Model 3 2017 to 2023, Model Y 2020 to 2024, Model Y Juniper 2025 and later, and Model 3 Highland 2024 and later — each one split into left-hand and right-hand drive, because they are physically different units.

On top of that, F9 Pro runs a Linux operating system and covers ground T3Pro's page does not mention: blind spot monitoring, a hands-off warning during Autopilot, a seatbelt reminder, and a multi-language interface. Its wireless mirroring goes beyond CarPlay and Android Auto to include Huawei HiCar. And it gives you a choice of audio path — the built-in independent speaker, or feeding into the Tesla's own audio system.

The practical read: unless you specifically need to stay in the older year range, F9 Pro is the broader product for barely more money, and it is the only 8-inch-class option that works on a Highland or a Juniper. If you want CarPlay without a second screen and already like the factory display, our CarPlay adapter guide for Model 3 and Model Y covers the other route to the same destination.

6. S11 vs the 9.66 Cluster: Bigger or Brighter

At the top of the range the choice stops being about fitment and becomes about what you value. Both fit every generation including Highland and Juniper. Both run wireless CarPlay. Both offer a front camera. The split is size against brightness, and it is a bigger split than the inches suggest.

S11 is the larger panel at 10.88 inches, and it puts its extra width to work with more than fifteen one-touch shortcut commands — Autopilot mode, battery preconditioning, opening doors, seat adjustment, volume — all fired from the dash instead of dug out of the center screen. That is a genuinely different proposition from a display that only reports. Its brightness is listed at 1000 nits.

The 9.66 inch cluster is the smaller panel and the brighter one by a wide margin: up to 3000 nits, on a laminated IPS panel at 1920 by 720 with an anti-glare coating, dimming itself in step with the center screen at night. Three times the peak brightness is not a spec-sheet curiosity. It is the difference between reading your speed in Arizona at noon and guessing at it.

Notice the column of "not stated on the page" entries. Those are not omissions on my part — S11's page genuinely does not list an IP rating, an operating temperature, or an install time. The 9.66 inch cluster does, and it is the only one of the six that commits to a number for installation at all. If reliability and installation certainty matter more to you than a wider panel, that is the trade being offered.

One caveat worth flagging on S11: its page lists the resolution two different ways. The specification block says 1920 x 532 and the feature copy says 1920 x 535. The difference is immaterial to how the screen looks, but if you are comparing specifications side by side, use the spec block figure and do not be surprised by the other.

7. The Front Camera Option, Honestly

Four of the six — T3Pro, F9 Pro, S11 and the 9.66 inch cluster — offer a front camera as an ordering option rather than part of the base product. It is worth understanding what it is before you add it, because the name invites a wrong assumption.

It is not a dashcam. The 9.66 inch cluster's page is the clearest about this: the camera "shows the area ahead of the front bumper only," and it "is not a replacement for your mirrors or for the car's own driver-assist systems." What you get is a view of the space immediately in front of the nose — useful for parking against a curb, judging a tight garage, or pulling up to something low that the sensors miss. What you do not get is a recording of your drive.

The other thing to know is that the option is priced differently by product. On T3Pro, F9 Pro and S11 the camera version sits a small step above the base version. On the 9.66 inch cluster the step is noticeably larger. Since prices move with the promotion, check the current figure on the product page rather than assuming the increment is the same everywhere.

8. Full Fitment Table

Here is every variant as the product pages list it. Note that the year ranges do not align between products — F9 Pro starts Model 3 at 2017 while T3Pro starts at 2019, and the 9.66 inch cluster splits Model 3 into three separate buckets. Match your exact model year against the product you are actually buying rather than against this article's summary.

Mini HUD and T2 ship as a single variant each, so their fitment comes from the compatible-vehicle text on the page rather than from a dropdown. Everything else is a dropdown selection, and on F9 Pro, S11 and the 9.66 inch cluster the dropdown also asks for hand drive — pick the wrong one and you get a unit that physically does not fit your car.

Before you order, check these five things

• Model year, not model name. "Model 3" spans three different fitment buckets across these six products. The year decides which ones you can buy.
• Hand drive, where the dropdown asks. F9 Pro and the 9.66 inch cluster ship different units for LHD and RHD on older cars. S11's older variants are left-hand drive only.
• The 26-pin rear OBD port, if you are buying the Mini HUD. It connects there and nowhere else, and the page tells you to confirm it exists.
• Whether you actually want CarPlay. This is the band decision from Section 1 and it is the one that cannot be fixed later.
• Peak brightness if you live somewhere sunny. The range runs from figures not stated at all to 3000 nits. If you drive in strong sun, that column matters more than the diagonal.

GRUNDIG F9 Pro 8.9" Dashboard Display

• Fits Model 3 2017–2023, Model Y 2020–2024, Highland and Juniper
• Left-hand and right-hand drive units, chosen at checkout
• 1920 x 720 LCD, wireless CarPlay, Android Auto and HiCar
• Blind spot monitoring and Autopilot hands-off warning
• Built-in speaker or feed into the Tesla audio system
• Optional front camera for the space ahead of the bumper

9. Frequently Asked Questions

Three of the six will: F9 Pro, S11 and the 9.66 inch cluster. The three HUDs do not list Juniper in their variants, and the Mini HUD's page explicitly excludes the 2024 Model 3 Highland generation, which is the same fitment break. If you drive a current-generation car, your shortlist starts at the upper band.

No. Every product here is an addition. The center screen stays exactly where it is and keeps doing everything it did before. What changes is that speed, battery, gear and warnings also appear in front of you, so checking them no longer means looking to the middle of the car.

It is the only genuine projection of the six. It uses a curved reflective surface with a multi-layer optical coating to float the image above the dash, and the coating is there specifically to remove the ghosting that makes cheap reflector HUDs hard to read. The other five mount a physical panel you look at directly.

No. CarPlay and Android Auto start with the upper band — T3Pro, F9 Pro, S11 and the 9.66 inch cluster. The three HUDs display vehicle data only. If CarPlay is the reason you are shopping, the three cheaper options cannot help you, and buying one will leave you reaching for a phone mount.

Treat that as product-specific rather than assumed. The 9.66 inch cluster's page states the camera shows only the area ahead of the front bumper and is not a replacement for mirrors or driver-assist systems, which reads as a parking aid rather than a dashcam. S11's copy does mention recording. Read the description of the exact product you are ordering.

F9 Pro and the 9.66 inch cluster offer right-hand drive units on the older Model 3 and Model Y variants, chosen in the dropdown. S11's 2017–2023 Model 3 and 2020–2024 Model Y variants are left-hand drive only, though its Highland and Juniper variants fit both. T3Pro has no hand-drive option at all.

10. The Bottom Line

Decide the band first. If you want your speed and warnings at eye level and nothing more, one of the three HUDs does that for a fraction of what a screen costs, and the Mini HUD does it most cleanly if your car has the 26-pin rear port. If you want CarPlay and a real second display, you are in the upper band and the interesting question becomes which of the three.

Inside that band the logic is tight. F9 Pro is the widest-coverage pick and the only 8-inch-class option for a Highland or a Juniper. S11 buys you the largest panel and a row of one-touch shortcuts for the functions you use most. The 9.66 inch cluster buys you three times the brightness, an IP67 rating, a stated 30-minute install, and the only operating temperature in the range that anyone committed to paper. Pick by what your climate and your patience demand.

None of the six is a bad product. They are answers to different questions, and the most common mistake is answering the wrong one — buying the readout when what you wanted was the screen, or buying the screen when a vent-gap panel would have done the job.

Six Displays, One Fitment Grid

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Disclaimer: Fitment, screen specifications and available options vary by product and model year. Confirm your exact model year and hand drive against the product page before ordering. Displays are driving aids and do not replace your mirrors, your attention, or the vehicle's own safety systems.

Facts Index