Xiaomi revives Mi Mix model line with Mi Mix Fold. The first Mi Mix was a futuristic-looking smartphone that started the smart-smartphone race. This new Mi Mix Fold is Xiaomi’s first collapsible, and represents, like Huawei’s efforts, the company that does its best to just copy the Samsung Galaxy Fold design.
Just like Huawei’s clone, the Xiaomi Fold is slightly larger than Samsung’s 7.6-inch device and has an internal, flexible OLED screen of 60 Hz, 2480 x 1860, 8.01 inches. The exterior display of the Xiaomi’s Fold is a 90 Hz, 2520×840, 6.5-inch OLED display, which is larger than Samsung’s 6.2-inch display and Huawei’s 6.45-inch outer display. Interestingly, Xiaomi takes the opposite approach to screen refresh rates that Samsung takes. On the Z Fold 2, a fast 120 Hz screen is the internal screen of the device, while the phone-style screen is 60 Hz. Xiaomi made the large internal screen slow and the external screen fast.
Xiaomi has opted for an iPad-like 4: 3 aspect ratio for the inner screen, while Samsung switched from almost 4: 3 in the first generation (4.2: 3) to a higher 5: 4 aspect ratio in its second generation folding. Huawei landed around this 5: 4 aspect ratio for the collapsible as well. It is difficult to know what the correct screen dimensions are for a collapsible Android, since Android tablets have been dead for so long that there is really no app support anymore. Today, most Android apps are phone apps, and they are really struggling to adapt to larger screens. Samsung’s and Huawei’s 5: 4 screens are almost two standard 21: 9 Android phones placed next to each other, so they can work around this issue by just running in split screen most of the time. The 4: 3 aspect ratio of the Galaxy Fold 1 was a little too cramped for a split screen.
One of the things Xiaomi and all other vendors can not match is Samsung’s collapsible glass display. Devices like the Galaxy Z Flip and Z Fold 2 actually have an “ultra-thin” glass layer in the screen. That’s not it top layer (it’s still easily scrapable plastic), but it gives some much-needed stiffness to a flexible screen, which can otherwise be a frizzy, squishy, slightly distorting root. Xiaomi has no actual pictures of the device, only renders, all of which show the inner screen as completely flat. In real life, you can expect ripples in the screen and a large curl in the screen where it folds in half.
The rest of the interior consists of exclusive smartphone parts. The phone has a Snapdragon 888 SoC, 12 GB RAM, 256 GB storage space, 67 W wired charging and a 5020 mAh battery. Xiaomi notes that it is four speakers and a fingerprint scanner on the side. Disappointingly, Xiaomi ships the phone with Android 10 instead of the latest version, Android 11.
The camera has the debut of “Liquid Lens technology” in a smartphone. One of the camera lenses is literally a drop of oil instead of a glass lens, and by applying a voltage to it, you can change the shape and focal length of the lens. Liquid lenses are not a new idea – they appear in things like industrial bar code readers – but they are new to a telephone. Xiaomi says that the lens allows one camera to cover two functions: the 8 MP sensor is both a 3x optical zoom and has a minimum focus distance of 3 cm for macro images.
Your liquid lens does not need freeze in low temperatures, but Xiaomi says you will be fine at a low level of -40 ° C (-40 ° F) to a high of 60 ° C (140 ° F). The rest of your smartphone will probably stop working before the lens does so in such temperatures. There is also a 108 MP primary sensor and a 13 MP ultra-wide on the back.
The Xiaomi Mi Mix Fold will ship in China, (for now only) on April 16th, starting at CNY 9,999, or ~ $ 1,526.