The Xiaomi Mi Mix 3 had a few leaks in the past weeks concerning the slow motion mode and the company even released a water balloon sample. We decided to wait for the real reviews and samples before making an opinion on this phone which is destined for the Chinese market first. The phone is supposed to shoot 960fps in 1080p mode which is exciting as an initial spec matching the Sony Xperia XZ2 and XZ3 phones in resolution and frame rate but we really have no slow motion duration spec yet.
After looking at the samples we have seen a clear indication of software interpolation to fill in video frames between high frame rate recorded video which looks to be 240p at 1080p and then conformed in software to 960fps on the fly using the phone’s hardware. The results are very good and beat anything we have seen before on phone frame rate interpolation which is a good thing, however, it looks like the phone is faking its way into slow motion 960fps.