If you're upgrading from the Galaxy S23 Ultra to the S24 Ultra, you might be wondering: “Will my old S23 Ultra case fit the S24 Ultra?” After all, the phones look nearly identical. However, even slight design shifts can make a big impact on fit and functionality.
While both models feature premium builds and edge-to-edge displays, a case made for the S23 Ultra might not align perfectly with the S24 Ultra. That’s why a case specifically designed for the S24 Ultra is essential for maintaining performance, protection, and the phone’s seamless design.
If you’re curious how the differences work, let’s break down what separates these models and why the right Galaxy S24 Ultra case will save you time, money, and effort.
Table of contents
Will An S23 Ultra Case Fit The S24 Ultra: The Basics
The Galaxy S23 Ultra and S24 Ultra may look nearly identical, but they target slightly different needs. The S23 Ultra is ideal for users who prioritize extended use, advanced cameras, and a sturdy build. The S24 Ultra refines that same formula with a slimmer profile, lighter body, and subtle shifts in button and camera placement that enhance everyday usability.
These changes may seem small, but they matter. Especially when it comes to case compatibility. A case made for the S23 Ultra might not align properly with the S24 Ultra’s ports, buttons, or camera cutouts. That misfit can compromise grip, protection, and even wireless charging performance. So, before reusing your old case, ask yourself: Is it worth risking the experience of your new device?
To answer the question: “Will an S23 Ultra case fit the S24 Ultra?” Let’s get into their physical specifications and see if your Galaxy S23 Ultra case can still rock it.

Size Differences
Though the Galaxy S23 Ultra and S24 Ultra may appear similar, their subtle design tweaks (just a few millimeters here and there!) set them apart significantly. The few changes:
- 0.9 mm shorter
- 0.3 mm thinner
- 1–2 g lighter
All of these reflect Samsung’s effort to refine the Ultra line. Both models share the same 6.8″ QHD+ Dynamic AMOLED 2X display, but the S24 Ultra introduces a flat screen design nestled within a titanium frame.
The S23 Ultra, in contrast, has a slightly curved panel housed in aluminum.
Camera Cut-Outs and Precision Fit
The Galaxy S23 Ultra’s camera and the S24 Ultra’s camera module with the new telephoto have major implications for case fit. The S24 Ultra replaces the S23 Ultra’s large rectangular 10× periscope lens with a more compact 5× circular periscope camera and dual 3× and 10× telephotos. That shift alters the camera hump shape and depth.
Inconsistent lens coverage: An S23 Ultra case won’t fit the S24 Ultra because it might over-recess the updated periscope lens on the S24 Ultra, causing shadows or fogging in your photos.
Insufficient protection: Conversely, an S23-specific case aligned flush with the old lens could leave the new, smaller periscope unstabilized, exposing it to scratches or impact.
Raised lip misalignment: Protective bezels tailored around the larger S23 module may sit unevenly on the S24 Ultra, compromising corner protection when dropped.
Button and Port Placements
Even minor misalignments in a case can seriously disrupt your experience. Here’s why precise engineering matters:
Button feedback degrades: A case not tailored for the S24 Ultra’s power and volume buttons may feel mushy, inconsistent, or outright stiff, making basic tasks frustrating.
Audio quality drops: Misaligned speaker or microphone cutouts can muffle your voice or reduce media clarity during videos and calls.
Port functionality: A USB-C opening designed for another model may pinch cables or leave ports fully exposed, making it difficult to plug in chargers and increasing dust exposure.
Case precision isn't a luxury. It's critical for daily use. For a flawless tactile response, clear sound, and reliable charging, don’t wonder if an S23 Ultra case fits the S24 Ultra. Choose a case explicitly crafted for both of these models.
Wireless Charging and MagSafe
The Galaxy S23 Ultra and S24 Ultra are not natively Qi2-ready. While these devices do support standard Qi wireless charging, they don't fully support Qi2 on their own. It's not equipped with the magnetic alignment needed for full Qi2 functionality. Samsung refers to its models as “Qi2‑ready,” meaning the phone can support magnetic charging only when paired with a compatible case.
Without that magnetic case, you won’t experience MagSafe for the S24 Ultra, or even the S23 Ultra. Furthermore, misaligned coils in a non-magnetic case can reduce charging efficiency or cause intermittent connections.
For Galaxy S24 Ultra users who want a seamless magnetic experience, the solution is clear: use a certified magnetic Qi2/MagSafe case engineered specifically for it. Doing so ensures the phone, case, and charger all work in harmony, delivering the smooth, cable-free convenience you expect.
🛒 Buyer’s Guide: We wrote a blog that will guide you through choosing the best Galaxy S24 Ultra MagSafe cases. Check it out!
Size Guide for S23 Ultra and S24 Ultra
The Galaxy S23 Ultra and S24 Ultra share a stunning 6.8-inch Dynamic AMOLED 2X display, but Samsung refined the S24 Ultra’s design in subtle yet meaningful ways. While both sport ultrabright screens and titanium or aluminum frames, it’s the slight dimensional tweaks that truly set them apart.
Check out our physical specification guide for the two Ultra variants:
Specifications |
S23 Ultra |
S24 Ultra |
Main Display (in inches) |
6.8" |
6.8" |
Dimensions (HxWxD, in) |
6.43 x 3.07 x 0.35 in |
6.39 x 3.11 x 0.34 in |
Weight |
234 g |
232 g |
Minor alterations, a millimeter shorter, a fraction thinner, and a few grams lighter, enhance the S24 Ultra’s handling and ergonomics without changing the visual experience. Both devices continue to offer flat, edge-to-edge screens with QHD+ resolution, 120 Hz refresh rates, and impressive brightness.
Are you still wondering if an S23 Ultra case fits the S24 Ultra?
In essence, the answer is no. Save your time, money, and effort by buying a case tailored for the S24 Ultra. This is because while the S23 and S24 Ultras may appear nearly identical, Samsung’s fine-tuning affects how accessories fit, making model-specific cases essential for optimal protection and user experience.
The Best Case For Your S24 Ultra
Even a minor design tweak between the Galaxy S23 Ultra and S24 Ultra can affect how well a case fits. For example, a case made for the S23 Ultra might not tightly hug the S24 Ultra’s streamlined profile, leading to a loose fit or uneven edges. Speaker and port openings may misalign just enough to reduce audio clarity or impede charging cable insertion. Even the camera opening might not align perfectly, which could leave sensors exposed or create shadowing in photos.
Designed specifically for the S24 Ultra, Thinborne’s Galaxy S24 Ultra case is incredibly thin (just 0.04 inches) and featherlight (at 0.75 ounces!). It offers a near-invisible profile that preserves the S24 Ultra’s sleek, premium feel. Crafted from aerospace-grade 600D aramid fiber, this gives you reliable durability against scratches and minor drops.
What sets Thinborne apart is its strong built-in magnetic ring. The carbon fiber textured finish adds grip. Precision-engineered cutouts and responsive buttons complete the package, thanks to a triple quality control process that guarantees premium quality.
Thinborne designed their S24 Ultra Case with one clear goal: to make your S24 Ultra feel as close to its original feel. That way, you get a seamless fit, responsive buttons, consistent audio, and reliable wireless charging. Everything working together exactly as Samsung designed it.
Wrap Up
When it comes to the Galaxy S24 Ultra, small design updates make a big difference. Using a case made for the S23 Ultra may compromise fit, protection, and everyday functionality. For the best experience for grip, wireless charging, or camera clarity, invest in a case specifically designed for the S24 Ultra.
Precision fit matters, and the right case ensures your device performs and looks its best.
Will a poorly fitting case affect wireless charging on the S24 Ultra?
Yes. Misaligned coils or missing magnetic alignment in a non-compatible case can slow down wireless charging or cause connection drops.
What material is best for a thin, protective case for the S24 Ultra?
Aerospace-grade 600D aramid fiber is ideal. It’s lightweight, strong, and allows for a slim profile while still offering excellent grip and durability.
What are the main differences in dimensions between the S23 Ultra and S24 Ultra?
The S24 Ultra is slightly shorter, thinner, and lighter than the S23 Ultra. These small changes affect how cases fit and align with buttons, ports, and cameras.