01
Check the usable space—not only the diagonal measurement
Screen size is a diagonal, not the total width, height or installed footprint. The bezel, mount and viewing angle can make two nominally similar displays fit differently. A larger screen may improve glanceability but occupy space needed for vents, instruments or the view ahead.
Before buying, make a paper template using the published outer dimensions and hold it at the intended mount position while seated normally. Check the road view and controls, then consider where the power cable and any camera cables will run. A template is more useful than comparing product renders at different scales.
02
Choose orientation around the dashboard
The verified support material identifies iK8 as an 8-inch portrait model, iK7 as a 10-inch screen, iK9 as a 9-inch screen and iK11 as an 11-inch family. These descriptions help form a shortlist, but the current variant and outer dimensions still need confirmation.
A portrait layout may fit one dashboard better; a wider layout may suit another. Neither orientation is automatically more compatible. The shared documentation does not establish a complete approved specification set for every similarly named Pro model, so use each exact product page.
| Vehicle observation | Why it matters | What to confirm |
|---|---|---|
| Limited space above the console | A tall display may block the view | Outer height and installed mount position |
| Wide dash, closely spaced vents | Display width can overlap controls | Outer width and access behind it |
| Curved or textured mounting area | A product photo may show a different surface | Supported mount and surface requirements |
| Shared vehicle | Seat positions and phones may differ | Visibility for both drivers and intended phone mode |
03
Choose an audio path before choosing the screen
A working map on the display does not mean sound will automatically play through the car speakers. Audio routing is a separate compatibility question. Identify your car's available inputs and compare them with the exact screen's output options.
| Audio route | Good reason to choose it | Condition or trade-off |
|---|---|---|
| AUX | Your stereo has a usable wired input | Cable routing and cable inclusion need checking |
| Car Bluetooth | You want a supported wireless audio route | Confirm the model's car-pairing arrangement |
| FM transmission | The car radio is the practical available input | A matching clear frequency is needed; interference can affect sound |
| Built-in speaker | You do not need the vehicle speakers | Listenability differs from the car's installed audio system |
04
Treat the rear camera as another buying decision
If you want road evidence behind the car, check rear recording. If you want the display to switch automatically when reversing, check that function and its installation requirements separately. One does not prove the other.
Confirm that the camera is included in the selected bundle and that its cable and connector match the screen. A generic-looking plug does not make another camera compatible. Camera positioning and vehicle cable routing can also make the installation more involved than mounting the display alone.
05
Portable screen or replacement head unit?
A portable screen retains the existing stereo and is useful when reversibility and a less invasive upgrade matter. It adds a separate display and visible mounting/power considerations. A replacement head unit can provide a more integrated dashboard result when the car supports it, but vehicle-specific fit and installation become part of the project.
Normal IIWEY portable-screen installation uses the supplied car charger; a hardwire kit or OBD cable is not required. Do not add a Dash Cam parking-power kit to the screen purchase by default. Choose that equipment only for a separate explicitly compatible recording setup.
06
Two buyers can reasonably choose different sizes
A driver with a compact dashboard and an AUX input may prefer a smaller display with a straightforward wired audio path. Another driver with generous clear space may prefer a larger display, provided it supports the needed phone and audio modes. Both choices can be better than picking the largest available model without checking the vehicle.
- Measure the installed footprint and check line of sight.
- Confirm the exact phone mode and audio route.
- Decide whether recording and automatic reverse view are essential.
- Verify current package contents, price and installation needs on the product page.
