The iPhone 11 Pro Max remains in daily use in large numbers, so owners still regularly need replacement protectors and face a confusing wall of sizes and near-identical model names. If you want to know what size screen protector fits the iPhone 11 Pro Max, the core answer is a protector made for its 6.5-inch display and its specific body, not merely any protector labelled with a similar screen size.
Screen size labels alone are a poor guide to fit, because two phones can share a display measurement yet have different bodies and notch shapes. This guide sets out the 11 Pro Max’s dimensions, explains which other model’s protectors genuinely interchange with it, and shows how sizing works so you can order with confidence.
Key Takeaways
- The iPhone 11 Pro Max has a 6.5-inch display and a body measuring about 158 x 77.8mm.
- Buy a protector listed for the iPhone 11 Pro Max or the iPhone XS Max — they share the same size family and protectors are commonly cross-listed for both.
- Protectors are cut slightly smaller than the screen itself so their edges sit on the flat area and adhere properly — this is normal, not a sizing error.
- Case-friendly versions are cut a fraction smaller again to clear case lips — choose these if you use a snug case.
- Protectors for the iPhone 11, 11 Pro, 12 Pro Max, or 13 Pro Max will not fit — each belongs to a different size family.
- The wide notch on the 11 Pro Max means its protectors differ from later smaller-notch and Dynamic Island models even at similar sizes.
The Dimensions That Decide the Fit
The iPhone 11 Pro Max body measures approximately 158mm tall by 77.8mm wide, housing a 6.5-inch OLED display measured diagonally. That diagonal figure is the number used in marketing, but protector manufacturers work from the body and the flat area of the front glass. A correct 11 Pro Max protector is a large piece of glass — noticeably bigger in the hand than protectors for the standard 6.1-inch iPhones — and it is shaped around the wide notch at the top, which houses the speaker and Face ID sensors.
The standard iPhone 11 and 11 Pro are smaller, so their protectors fall well short on a Pro Max. The later 12 Pro Max, 13 Pro Max, and 14 Pro Max are larger again, with slimmer bezels and different sensor layouts, so their protectors overhang or misalign despite also being “Pro Max” models. The name stayed similar; the dimensions did not.
The XS Max Connection: Your Other Correct Option
The one genuinely interchangeable pairing for this phone is the iPhone XS Max. The XS Max immediately preceded the 11 Pro Max, shares essentially the same body dimensions and 6.5-inch display size, and has the same wide notch layout. Because of this, reputable sellers commonly list a single protector as fitting both the XS Max and the 11 Pro Max, and in this case the cross-listing is accurate rather than optimistic. If you find a protector listed for the XS Max alone from a trustworthy seller, it will generally fit the 11 Pro Max correctly.
Searching under both model names widens your choice, particularly for privacy or matte protectors, because stock for older models fluctuates. Do check reviews or stated dimensions where possible, and be wary of listings that stretch one protector across three or four generations — a listing claiming to fit the XS Max, 11 Pro Max, 12 Pro Max, and 13 Pro Max simultaneously is claiming something dimensions do not support.
- Before peeling any new protector, lay it over the screen and check the notch and edges. On a correct 11 Pro Max protector, the notch cutout mirrors the phone’s wide notch exactly and a hairline gap of roughly a millimetre remains on each side. If the cutout looks narrower than the notch, you have a later model’s protector.
Why Protectors Are Cut Smaller Than the Screen
Owners sometimes measure a new protector, find it smaller than the display, and assume they have been sent the wrong size. In fact, the undersizing is deliberate. The front glass of the 11 Pro Max curves down at its edges, and adhesive cannot seal reliably on a curve. Manufacturers therefore cut protectors to cover the flat central area of the screen, stopping just short of where the curve begins. The result is a small visible border of uncovered glass around the protector, typically around a millimetre, which is the correct and intended fit.
Case-friendly protectors take this a step further and are cut slightly smaller on all sides so that a case’s raised lip does not push against the protector’s edges and lift them. If you use a bulky or tight-fitting case, the case-friendly variant is the safer choice; if you use no case or a very slim one, a standard full-coverage variant maximises the protected area. Edge lifting, white borders, and the so-called halo effect almost always trace back to a protector edge sitting on the curve or being nudged by a case — not to the phone itself.
Ordering the Right Protector, Step by Step
Start by confirming your exact model, because the 11 range is easy to confuse. On the phone, open Settings, then General, then About, and read the model name shown there — it will state iPhone 11 Pro Max explicitly. The triple-camera arrangement distinguishes the Pro models from the dual-camera standard iPhone 11 at a glance, but the Pro and Pro Max look alike in photographs, so the written model name is the reliable check before you spend money.
When shopping, search for the full model name, choose between standard and case-friendly cuts based on your case, and prefer listings naming the XS Max and 11 Pro Max together over universal fits. Because the phone is older, multi-packs offer good value, and keeping a spare matters: as models age, ranges shrink and a design you like may not be restocked.
- If your case has a particularly deep lip, fit the protector first, let the adhesive settle for half an hour, then fit the case. Snapping a tight case on immediately is the most common cause of a fresh protector lifting at the corners.
Frequently Asked Questions
Will an iPhone 12 Pro Max protector fit my 11 Pro Max?
No. The 12 Pro Max is a larger phone with a 6.7-inch display, slimmer bezels, and a different sensor layout. Its protector is too big for the 11 Pro Max, would overhang the edges, and its cutouts do not align correctly with the earlier phone’s notch and speaker.
Are iPhone 11 and 11 Pro Max protectors the same size?
They are not. The standard iPhone 11 has a 6.1-inch display in a smaller body, and the 11 Pro is smaller still at 5.8 inches. Only the Pro Max uses the 6.5-inch size. A standard iPhone 11 protector fitted to a Pro Max would leave a large border of screen exposed on every side.
My new protector does not reach the edges of the screen. Is it the wrong size?
Almost certainly not. Protectors are intentionally cut about a millimetre short of the edges so they sit on the flat part of the glass and adhere fully; case-friendly versions are slightly smaller again. A small, even border on all sides indicates a correct fit. A large or uneven border indicates the wrong model.
For the 11 Pro Max, the right size is its own: a 6.5-inch protector made for it or its XS Max sibling — everything else in the range is a compromise the dimensions never agreed to.
