Shortly after new phone models hit the market, generic protective cases tend to suffer from faded prints, color distortion and poor fitting over time. They fail to showcase the aesthetic design and premium experience of the iPhone Duo to the fullest.
This sublimation phone case is a custom accessory developed by PROSUB exclusively for the iPhone Duo, matching the sophisticated premium feel of the new device.
Tailored to the exact dimensional parameters of the device, it leverages mature sublimation technology, premium PC material and precision molding to resolve three core pain points: print quality, material performance and fitting accuracy.

1. Stunning Color Reproduction | High-Definition Prints for Authentic Texture
Visual appeal is the highlight of this iPhone Duo sublimation case. Adopting professional sublimation transfer technology — different from ordinary printing methods — the ink penetrates deep into the coating of the case shell. It delivers outstanding color fastness, highly saturated hues and ultra-realistic imagery.
Landscape photos, high-res portraits and cultural & creative patterns are reproduced faithfully. Colors feature rich layers and clear transparency: deep shadows stay true without grey cast, and gradients transition smoothly. No more dulling or blurry patches after prolonged use.

Fine textures stay sharp, lines are clean and jagged-free, delivering a visual quality comparable to official high-definition wallpapers.
Beyond aesthetics, it outperforms standard printed cases in practicality. Patterns are embedded beneath the coating, resisting fading and yellowing. Daily hand friction, pocket storage and minor bumps will not damage the print, keeping the case vibrant long-term.
2. 難しい Base Material + Special Coating | Balanced Durability & Premium Feel
Great looks go hand in hand with premium material and engineered coating, granting this iPhone Duo case a long service life and comfortable grip.

Premium High-Performance Base Material
The shell is made of high-grade PC polycarbonate, a preferred material for digital protective accessories. It balances slimness, rigidity and impact resistance, keeping its shape while retaining good toughness.
The base material undergoes refined finishing with consistent thickness and even stress distribution. It absorbs impacts from everyday knocks, drops and compression to protect the phone back panel and corners, without adding bulk — preserving the iPhone Duo’s slim bare-hand feel.
This PC material also boasts excellent anti-aging and anti-oxidation properties. It resists deformation, cracking and yellowing with extended use, maintaining a clean premium look.

Custom Sublimation-Specific Coating
On top of the base layer sits a proprietary coating formulated for sublimation. The coating surface is smooth and delicate, blending the sophisticated matte finish with the clarity of a glossy surface. It repels fingerprints and sweat for a clean grip, eliminating the greasy, sticky feel common on cheap cases.
It also greatly boosts ink adhesion and sealing, locking in crisp prints while enhancing scratch and abrasion resistance, upgrading both appearance and durability.

3. Precision Device Fit | Snug Fit & Responsive Buttons
For a premium case, accurate fitting and handling define the core user experience.

Molded from Real Device | Zero-Gap Fit
This iPhone Duo sublimation case is molded directly from the genuine device with 1:1 dimensional alignment. It is engineered to match the iPhone Duo’s curved profile, camera array, button cutouts and charging port for a seamless, all-around snug fit.
The edge of the case sits neatly along the screen without lifting, warping or squeezing screen protectors, fully compatible with full-screen films. Once installed, it achieves strong integrated styling. Looseness, gaps and warping seen on low-cost cases are eliminated. It protects the frame without interfering with screen touch operations.

Accurate Cutouts for Uninterrupted Use
Precision cutouts for the camera and bottom port leave ample clearance. Charging, wired audio and photography are completely unobstructed, while the camera rim shields the lens from scratches and bumps.
Independent side button recesses follow the contour of original iPhone Duo buttons. Buttons offer crisp, responsive feedback with no lag, looseness or failure. Long presses and quick taps operate smoothly, closely replicating the bare-phone tactile experience.

Conclusion
Vivid high-definition printing, robust material & coating, and precise device fitting — all these premium experiences are backed by professional consumable technology and a stable supply chain.
PROSUB has specialized in sublimation consumables for 15 years, with its own large-scale manufacturing plant. We focus on the R&D and production of blank sublimation phone cases and hold proprietary coating formulation technology. We supply premium blank PC cases, exclusive coating formulas and one-stop POD on-demand customization & OEM services.
Our full product line holds international certifications including ISO, CE and RoHS. Production follows strict overseas quality standards to minimize after-sales issues such as color fading, shell warping and color deviation.
We maintain sufficient inventory and a wide SKU portfolio covering iPhone Duo and the full Apple lineup, with reliable lead times. We are your trusted source manufacturer for sublimation blank phone cases and custom OEM services.



