No. An iPhone 13 Pro Max case does not properly fit an iPhone 15 Pro Max. The phones have different body dimensions, camera housings, charging connectors, and upper-left controls. Those differences can leave the newer phone loose, interfere with a feature, or reduce protection during a drop. Use a case whose manufacturer explicitly lists the iPhone 15 Pro Max.
Last updated: September 19, 2026
Quick Answer
No. An iPhone 13 Pro Max case does not properly fit the iPhone 15 Pro Max. The newer phone is shorter, narrower, and thicker. It also has a different camera housing, a USB-C port, and an Action button. Use a case specifically labeled for the iPhone 15 Pro Max.
Key Takeaways
- The two phones do not have identical dimensions.
- An older case may stretch around the iPhone 15 Pro Max, but that does not make it safely compatible.
- The camera opening, USB-C port, and Action button require model-appropriate case geometry.
- Both phones support MagSafe, so many separate MagSafe chargers and accessories can still work, subject to the accessory maker’s compatibility requirements.
- Screen-protector compatibility is product-specific; reuse one only if its manufacturer explicitly lists the iPhone 15 Pro Max.
iPhone 13 Pro Max and iPhone 15 Pro Max Size Comparison
Apple lists the iPhone 13 Pro Max at 160.8 mm tall, 78.1 mm wide, and 7.65 mm deep. It weighs 240 grams. The iPhone 15 Pro Max is 159.9 mm tall, 76.7 mm wide, and 8.25 mm deep. It weighs 221 grams.
That makes the iPhone 15 Pro Max 0.9 mm shorter, 1.4 mm narrower, 0.6 mm thicker, and 19 grams lighter. A millimeter may sound minor, but a fitted phone case depends on precise edge pressure, button alignment, port clearance, and camera placement.
| Feature | iPhone 13 Pro Max | iPhone 15 Pro Max | Effect on Compatibility |
|---|---|---|---|
| Height | 160.8 mm | 159.9 mm | An older case may leave vertical movement or poorly seated corners. |
| Width | 78.1 mm | 76.7 mm | The iPhone 15 Pro Max can sit too loosely in a rigid 13 Pro Max case. |
| Depth | 7.65 mm | 8.25 mm | A tight older case may press unevenly or fail to seat around the edges. |
| Weight | 240 g | 221 g | Weight does not determine case fit, but it reflects the different chassis design. |
| Charging connector | Lightning | USB-C | The bottom opening may restrict the plug or fail to align with the surrounding openings. |
| Upper-left control | Ring/Silent switch | Action button | A switch cutout does not provide the same coverage or operation as an Action-button design. |
| Overall case result | Designed for the 2021 model | Requires compatible 15 Pro Max geometry | Not properly interchangeable |
Compatibility rule: If a case manufacturer does not explicitly list the iPhone 15 Pro Max, treat the case as incompatible even if soft material can stretch around the phone. Physical installation alone does not prove correct camera, button, port, corner, or edge protection.
Do iPhone 13 Pro Max Cases Fit the iPhone 15 Pro Max?
No. An iPhone 13 Pro Max case does not provide the model-specific fit required by the iPhone 15 Pro Max. A soft silicone or flexible TPU case may stretch enough to go around the newer phone, but that only shows that the material can bend. It does not confirm correct alignment or reliable protection.
A properly fitted case should grip all four corners, sit flat around the screen and camera, provide clean access to every control, and stay attached when the phone is lifted by an edge. It should also let a USB-C cable connect normally without the case pressing against the plug.
Warning: A case that can be forced onto the phone is not necessarily compatible. Stop using it if the phone moves inside the case, a corner will not seat, the camera touches the opening, a button remains pressed, or a charging cable cannot connect normally.
Why the Older Case Does Not Fit Correctly
The Body Is Narrower but Thicker
The iPhone 15 Pro Max is narrower than the iPhone 13 Pro Max but slightly thicker. A rigid case made for the older phone can leave space along the sides while pressing too firmly against other edges. A flexible case may twist or bow instead of holding the phone evenly.
The Camera Opening Is Model-Specific
The iPhone 15 Pro Max uses a different Pro camera system, including a 48MP Main camera and a 5x Telephoto camera. The opening in a protective case must clear the complete camera housing, flash, LiDAR Scanner, and raised lens area.
An iPhone 13 Pro Max case may sit too close to the iPhone 15 Pro Max camera hardware, obstruct part of the flash or LiDAR area, or provide uneven protection around the camera bump. Even when every lens remains visible, the protective lip may not sit where its designer intended.
The Ring/Silent Switch Became an Action Button
The iPhone 13 Pro Max has a Ring/Silent switch. The iPhone 15 Pro Max replaces it with an Action button. A case designed around an open switch cutout may leave the Action button exposed or awkward to press. A compatible iPhone 15 Pro Max case should provide correctly positioned access or a suitable button cover.
Lightning Changed to USB-C
The iPhone 13 Pro Max uses a Lightning connector. The iPhone 15 Pro Max uses USB-C for charging, data transfer, and supported accessory connections. Apple’s USB-C guidance for iPhone confirms that iPhone 15 and later models use USB-C.
An older bottom cutout may not provide enough room for a USB-C plug, especially when the cable has a thick housing. The opening can also align differently around the bottom of the phone.
Problems Caused by an Ill-Fitting Case
| Issue | What Can Happen |
|---|---|
| Loose body fit | The phone can shift inside the case, allowing an edge or corner to take more force during a drop. |
| Poor camera alignment | The case can contact the camera housing, obstruct the flash or LiDAR area, or provide an uneven protective lip. |
| Action button access | A Ring/Silent switch opening may not let you press the Action button comfortably. |
| USB-C obstruction | The charging plug may not insert fully, or a wide cable housing may not fit through the opening. |
| Raised or unseated corners | A corner can pull away from the phone, reducing screen-edge protection. |
| MagSafe contact | A warped or loose case can keep a magnetic charger or accessory from sitting flat against the phone. |
Can You Reuse an iPhone 13 Pro Max Screen Protector?
Do not assume an iPhone 13 Pro Max screen protector will fit—or that every one will fail to fit—the iPhone 15 Pro Max. Screen protectors differ from molded cases because some manufacturers deliberately sell a protector across multiple compatible phone models, while other protectors are designed for one specific model.
The safest rule is to check the exact protector’s manufacturer compatibility list. If the iPhone 15 Pro Max is explicitly listed, follow the manufacturer’s installation instructions. If it is not listed, replace the protector rather than relying only on the shared 6.7-inch marketing description.
Manufacturer charts demonstrate why the exact product matters. For example, Belkin’s ScreenForce compatibility information assigns compatibility by specific protector model rather than by screen-size name alone.
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Will Existing MagSafe Accessories Still Work?
Cases and separate MagSafe accessories should be treated differently. Apple lists MagSafe wireless charging up to 15W for both the iPhone 13 Pro Max and iPhone 15 Pro Max, so many MagSafe chargers can continue to work with the newer phone.
Wallets, stands, mounts, and similar magnetic accessories may also work, but physical clearance can vary by accessory and case. Check the accessory manufacturer’s compatibility guidance, especially when the accessory sits close to the larger camera area.
Note: MagSafe compatibility does not make two protective phone cases interchangeable. It describes support for Apple’s magnetic charging and accessory system, not the dimensions of the outer shell.
Alternatives to Reusing an iPhone 13 Pro Max Case
The safest option is a case whose compatibility list specifically names the iPhone 15 Pro Max. Do not rely only on labels such as “Pro Max” or “6.7-inch iPhone,” because different generations can share a nominal display size while using different body dimensions, cameras, controls, and ports.
Choose the case style according to how you use the phone:
- Thin case: Best when you want basic scratch protection and minimal added bulk.
- Grip-focused case: Useful if smooth phones often slip from your hand.
- Rugged case: Better for frequent outdoor use, physical jobs, or repeated drop exposure.
- MagSafe case: Appropriate when you regularly use magnetic chargers, wallets, mounts, or stands.
- Wallet or folio case: Useful when you want front-screen coverage or card storage.
- Clear case: Shows the phone’s finish, although some clear materials can discolor with age.
A product’s protection claims apply to that specific case and phone model. Review its materials, raised edges, test information, warranty terms, exact compatibility list, and customer feedback before buying.
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Why a Properly Fitting Case Matters
A phone case protects best when it keeps the device centered and lets the case’s intended corners and edges manage an impact. If the case is loose, the phone can move before the shell takes the force. If the case is too tight or badly aligned, one or more corners may not seat fully.
A correct fit also keeps the screen lip, camera lip, buttons, speakers, microphones, and charging connector in their intended positions. You should not need to remove the case to charge the phone, press a control, or take an unobstructed photo.
How to Choose the Right iPhone 15 Pro Max Case
Start by confirming your exact phone model. You can check Settings > General > About, or use Apple’s iPhone model identification guide.
Then review these points before ordering:
- Exact model label: The listing must explicitly include “iPhone 15 Pro Max,” not only “iPhone 15,” “Pro Max,” or “6.7-inch iPhone.”
- Camera opening: Check that the opening surrounds the full camera housing and provides the intended raised protective edge.
- Action button design: Look for a responsive button cover or a correctly shaped opening.
- USB-C clearance: Make sure the bottom opening can accept the cables you normally use.
- Screen protection: A raised front lip can help keep the display away from flat surfaces.
- MagSafe support: Choose a case designed for magnetic accessories when MagSafe attachment strength matters to you.
- Grip and material: Select a texture and thickness you can hold comfortably.
- Screen protector compatibility: Check whether the case edge crowds the particular protector you plan to use.
- Return policy: Confirm that you can return the case if the fit, controls, or charging access are poor.
Pro Tip: After installing a new case, check all four corners, press every button, connect your widest USB-C cable, open the camera and test the flash, attach your usual MagSafe accessory, and gently check for movement inside the shell. If any corner lifts, the phone shifts, a control binds, or an opening is obstructed, treat the fit as a failure.
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Conclusion: Use a Compatible iPhone 15 Pro Max Case
An iPhone 13 Pro Max case does not properly fit an iPhone 15 Pro Max. The newer model is shorter, narrower, and thicker, and it uses different camera hardware, a USB-C connector, and an Action button. Those changes are enough to make the old shell unreliable even when a flexible design can stretch around the phone.
Use a protective case whose manufacturer explicitly lists the iPhone 15 Pro Max. For screen protectors, check the specific protector’s compatibility list because some products support multiple phone generations. Many separate MagSafe chargers and accessories can still be reused when their manufacturer supports the newer phone.
For a broader model-by-model compatibility guide, see which iPhones share the same phone case.
Frequently Asked Questions
What are the dimensions of the iPhone 13 Pro Max and iPhone 15 Pro Max?
The iPhone 13 Pro Max measures 160.8 × 78.1 × 7.65 mm. The iPhone 15 Pro Max measures 159.9 × 76.7 × 8.25 mm. The iPhone 15 Pro Max is shorter and narrower but slightly thicker.
Do iPhone 13 Pro Max cases fit the iPhone 15 Pro Max?
No. The body dimensions, camera housing, charging connector, and upper-left control differ. A flexible older case may stretch over the phone, but that does not provide a reliable model-specific fit.
Is the camera opening the same on both models?
No. The phones use different camera systems and housings. A case made for the iPhone 13 Pro Max may sit too close to the iPhone 15 Pro Max camera hardware or provide the wrong protective clearance around the camera area.
Can I use an iPhone 13 Pro Max screen protector on an iPhone 15 Pro Max?
Only if the screen protector manufacturer explicitly lists the iPhone 15 Pro Max as compatible. Screen-protector compatibility is product-specific, so do not rely only on the shared 6.7-inch display description.
Will my old MagSafe charger work with the iPhone 15 Pro Max?
Many MagSafe chargers can work with both phones because both models support MagSafe wireless charging. Check the accessory maker’s compatibility guidance, especially for wallets, mounts, stands, or accessories that sit close to the camera area.
How can I tell whether a case fits safely?
All four corners should sit fully inside the case. The phone should not slide or rattle, the camera opening should remain clear, every button should respond normally, and your USB-C cable should insert without pressure from the case.
Sources
- Apple: iPhone 13 Pro Max Technical Specifications — confirms dimensions, weight, display, Lightning connector, Ring/Silent switch, cameras, and MagSafe support.
- Apple: iPhone 15 Pro Max Technical Specifications — confirms dimensions, weight, Dynamic Island, camera system, USB-C connector, Action button, and MagSafe support.
- Apple: Charge and Connect with the USB-C Connector on Your iPhone — confirms that iPhone 15 and later models use USB-C and explains supported connections.
- Apple: Identify Your iPhone Model — confirms the physical controls, connectors, camera arrangement, and identifying details of each model.
- Belkin: ScreenForce Screen Protector Compatibility — demonstrates that screen-protector compatibility can vary by specific protector model rather than phone screen-size name alone.
