Hope L. , via OnePlus 9 Pro Morning Mist , Apr 19, 2021 : When we began designing the OnePlus 9, we wanted its colors to stand as a positive expression. To bring this design concept into realization, and into each person’s own hands, while also satisfying the most exacting aesthetic standards, meant that we needed to find the optimal balance between hand feel, quality, and finishing. And so that’s exactly what we did. Each design variant for the OnePlus 9 evinces a certain quality, one that draws the eye again and again. And when you pick it up and actually have it in hand, you will quite literally be able to feel the innovative and refined finishing right at your fingertips. Arctic Blue No matter what angle you look at it from, the Arctic Blue always presents a pure, flawless look. The reason for that is that the Arctic Blue is composed of an inner color film and an outer layer of glass, both of which have undergone a matte frosted polishing. It’s a marked improvement on the common problem of color distortion found in matte glass when viewed at an angle. Astral Black When we decided to bring a glossy black design to the OnePlus 9, the first thing we considered was the tendency of glossy finishes to collect fingerprint smudges. We addressed that by making use of a new, refractive finishing film, which helps to dispel the appearance of fingerprints. Winter Mist If the Arctic Blue and Astral Black versions were attempts to replicate colors out of nature, the Winter Mist design was a venture into something more imaginative, creating a strong visual contrast. The Winter Mist’s glass back transitions subtly from a misty to a mirror finish, and it was that exact transition that presented a challenge in production. In order to achieve it, we needed nanometer-grade processing, surpassing anything that had been done before. After plenty of experimentation, we finally set our sights on a machine that could do what we hoped: the very same photolithography machine as is used for crafting processors. This was the first time that OnePlus had put photolithographic techniques to the task of finishing a color film. We used an advanced algorithm to control the etching process so that the transition from the misted to the mirror surface flows perfectly. Also, when you view it in full light, you’ll discover a vertical grain that was set into the glass deliberately and reminiscent of the trails of falling stars. It gives a sense of movement to still light and makes the Winter Mist something truly exceptional. The Secret to Extraordinary Hand Feel Perfect finishing goes hand in hand with visual elegance, but it also has to consider the comfort of the material. This means that there is a subtle but important connection between the quality of balanced design and hand feel. And to manage that connection, we approached it with new thinking from multiple angles. The middle frame of the OnePlus 9 is built from an aluminum-magnesium alloy, injection-molded into one piece, and then bonded with fiberglass to create a structure that is at once robust, dependable, and lightweight. Our designers fully accounted for the material difference between the fiberglass and glass back by stringently controlling the smoothness of the fiberglass surface and adding a premium glossy look through our customized NCVM coating. This procedure adds the cost substantially, but we felt there could be no compromise in ensuring that the frame and back joined together in one cohesive body. We also made sure to shift the position of the battery downwards to create better balance in the center, making the device more comfortable to hold. And in every other facet, from the corner of the display to the middle frame and around to the back, we designed at the micrometer level to get seamless, sinuous curves. Of course, this is not all that went into the design of the OnePlus 9. In fact, there’s much more than the eye barely even sees. Details like the Hasselblad logo in the rear camera module which, in order to make it stand out more, used photolithography machines to add texture much like in the Winter Mist design. Every letter quietly shimmers in the light, understated yet clear. (Texture of the Hasselblad logo in OnePlus 9’s rear camera module) The OnePlus 9 moved industrial design innovations from concept to reality, including the design details you might even overlook. We hope that everyone can enjoy the extraordinary qualities of the OnePlus 9, and find something tranquil, even restorative, in its studied, genuine design.