Galaxy Z Fold4 Unicorn Beetle PRO Case with S-Pen Holder: Full Review
By SUPCASE | Gear Up. Stay Unbreakable. | Published: 2026-08-03
Category: Product Reviews
Our in-depth review of the Galaxy Z Fold4 Unicorn Beetle PRO rugged case with S-Pen holder. See how it protects your foldable, fits the S-Pen, and stands up to drops.
The Galaxy Z Fold4 is a marvel of engineering, but its delicate hinge and large inner screen demand serious protection. A standard slim case won't cut it if you're prone to drops or work in tough environments. That's where the Unicorn Beetle PRO series steps in, and the Galaxy Z Fold4 Unicorn Beetle PRO Rugged Case with S-Pen Holder is one of the most comprehensive options available.
In this review, we'll dive into the design, protection, usability, and S-Pen integration of this rugged case. We'll also compare it to other SUPCASE offerings and help you decide if it's the right armor for your foldable.
Design and Build Quality
The Galaxy Z Fold4 Unicorn Beetle PRO case is a two-piece design that sandwiches your phone in a tough polycarbonate shell with a shock-absorbing TPU bumper. The back panel features a textured grip pattern, making the slippery Fold4 much easier to hold. The case adds noticeable bulk, but that's expected from a rugged caseāand it's a trade-off most users are willing to make for peace of mind.
Ports and buttons are precisely aligned, with responsive covers for the volume rocker and power/fingerprint sensor. The hinge is left exposed but with raised lips on both sides to prevent scratches when the phone is closed. The case also includes a built-in screen protector for the front display, which is a nice touch for added scratch resistance.
- Two-piece polycarbonate/TPU hybrid construction
- Textured grip on the back and sides
- Raised edges protect the camera and front screen
- Precise cutouts for all ports and speakers
S-Pen Holder: A Game Changer
The standout feature of this case is the integrated S-Pen holder. Located on the back, it securely stores your S-Pen without adding much bulk. The holder has a dedicated slot that keeps the pen in place with a satisfying click, and it doesn't interfere with wireless charging or Samsung Pay.
Having the S-Pen always attached means you'll never fumble for it in a bag or pocket. It's especially useful for taking quick notes or navigating the Fold4's large screen. The holder is designed to fit the official S-Pen Fold Edition, which is the correct size for the Z Fold4.
- Secure click-in holder for the S-Pen Fold Edition
- Does not block wireless charging or NFC
- Adds minimal extra width to the case
Drop Protection and Durability
SUPCASE is known for military-grade drop protection, and this case is no exception. It meets MIL-STD-810G standards, meaning it can survive drops from up to 6 feet onto concrete. The combination of a hard polycarbonate back and flexible TPU bumper absorbs impact and transfers energy away from the phone.
In our drop tests, the case held up admirably. The corners are reinforced with extra TPU, and the raised bezels around the camera module and front screen kept those vulnerable areas safe. After multiple drops, the case showed only minor scuffs, and the phone remained flawless.
- MIL-STD-810G drop tested from 6 feet
- Reinforced corners and raised bezels
- Durable materials resist scratches and scuffs
Usability and Daily Experience
The added bulk is noticeable, but the ergonomic grip makes the Fold4 easier to hold one-handed. The case's texture prevents slips, and the raised edges around the screen give you a confident grip. The built-in screen protector is responsive and doesn't interfere with the fingerprint sensor.
Wireless charging works through the case, though you may need to align the phone carefully on some charging pads. The S-Pen holder doesn't interfere with the charging coil, which is a plus. Overall, the case is comfortable for daily use, even if it makes the phone a bit heavier.
- Textured grip improves one-handed use
- Wireless charging and NFC still work
- Screen protector included and responsive
Comparison with Other SUPCASE Options
If you're considering other SUPCASE products, the Galaxy Z Fold4 Unicorn Beetle PRO is the most rugged option with S-Pen storage. For a lighter profile, the Galaxy S22 Ultra Unicorn Beetle EDGE XT Bumper Case offers a slimmer design, but it doesn't have a dedicated S-Pen holder. For those who prefer a clear case, the iPhone 14 Pro Max 6.7 inch Unicorn Beetle MAG Slim Clear MagSafe Case is a different style, but it's not designed for foldables.
The Unicorn Beetle PRO line is the go-to for maximum protection, and the Z Fold4 version is no exception. If you want the same level of protection for other devices, consider the Galaxy S25 Ultra Unicorn Beetle PRO Rugged Case (open box) for a more budget-friendly option, or the Apple Watch Unicorn Beetle PRO Rugged Wristband Case for your wrist.
Final Verdict
The Galaxy Z Fold4 Unicorn Beetle PRO Rugged Case with S-Pen Holder is an excellent investment for anyone who wants to protect their foldable without sacrificing the S-Pen experience. It's rugged, well-designed, and the S-Pen holder is a genuine convenience. The added bulk is a minor trade-off for the level of protection you get.
If you're looking for a case that can handle drops, keep your S-Pen secure, and still allow wireless charging, this is the one to get. It's a top-tier choice for the Z Fold4.
In summary, the Galaxy Z Fold4 Unicorn Beetle PRO case with S-Pen holder delivers on all fronts: protection, usability, and S-Pen integration. If you're ready to give your Fold4 the ultimate armor, check out the Galaxy Z Fold4 Unicorn Beetle PRO Rugged Case with S-Pen Holder-Dark Green today.




