We've updated our case series names. Edge (formerly Ultra-Slim), Cairn (formerly ProGuard), and Summa (formerly UltraGuard) now reflect the experience, not just the specs. Edge: slim, light, and sharp along the climb. Cairn: firm and dependable, like stone markers that guide the way. Summa: the peak, where protection and hand-feel come together.

*The iPhone 18‑series Cairn case features the upgraded Bow‑Arc Corner Buffer 2.0. Its externally reinforced corner frames effectively absorb drop impacts for more reliable phone protection.
*It comes with a physical capacitive camera button, offering better aesthetics and tactile feedback compared to the former TPU.

Bow‑Arc Corner Buffer 2.0 is inspired by heavy‑duty outdoor‑gear geometry. Its reinforced corner frame efficiently absorbs impact energy from drops to deliver more reliable protection for your phone.

Cairn has passed military-grade drop certification and can withstand standard drop tests from up to 2.44 meters (8 feet). This exceptional protection is mainly attributed to the arched cushioning design at the corners, which effectively absorbs impact during falls.

Cairn focuses on ultimate drop protection: It uses hot-press molding, retaining the skin-friendly woven texture of aramid fiber for a grippy, fingerprint-resistant feel. Features an exclusive arched cushioning design for military-grade drop protection, ideal for users who prioritize safety.
Summa is the flagship model, emphasizing both protection and refined details: It utilizes 3D thermoforming technology to seamlessly integrate aramid fiber and TPU, resulting in a smoother, more premium feel that is also easy to clean. Upgraded with self-developed Orca Resin for a lightweight yet ultra-durable build with double the impact resistance, reflecting PITAKA's pursuit of perfect balance between protection and aesthetics.

They are not fully compatible due to minor differences in phone dimensions and camera module height.
*An iPhone 18‑series case can fit onto an iPhone 17‑series device, yet gaps will appear around the camera bezel, resulting in a suboptimal fit.
*It is NOT recommended to use an iPhone 17‑series case on an iPhone 18‑series phone:
-The reduced height difference between the camera module and case bezel weakens shock‑absorbing lens protection.
-Camera lens films will not fit properly.

No. This case will not interfere with cellular networks, Wi‑Fi, Bluetooth, and NFC under normal use.

No. Our cases are carefully designed and tested to be compatible with mainstream wireless chargers. You can charge your phone without removing the case.

Yes. All iPhone 18 series cases have a built-in magnetic ring, supporting MagSafe and PITAKA accessories, including MagEZ Car Mount Pro, MagEZ Grip, Aramid Magnetic Power Bank, Magnetic Woven Wallet, and Magnetic Stand Woven Wallet.

No, all series undergo rigorous testing to ensure no impact on sensitivity.
If you need to adjust sensitivity, navigate to:
Settings → Camera → Camera Control → Accessibility → Light-Press Force.

Enable NFC on your phone and gently tap the lower part of the case. Enter the serial number on the webpage that pops up to check authenticity. You can also visit our official website to access games, music, wallpapers, and after-sales services.

To provide a skin-friendly feel, the case surface is coated. Fingerprints may occasionally appear due to hand sweat or lotion, but they can be easily wiped away with a wet wipe, alcohol pad, or even an eraser. Use with confidence.

Essentially, 600D aramid fiber is a thinner thread, whereas 1500D aramid fiber is a thicker thread. The 600D version will feel more delicate to the touch and the case is slightly thinner.
You can read more about the difference here.