OnePlus 2 Mini appears to be in the works according to benchmarks
5.1.1. There are one oddity in the data though: the phone lists as not having HDR capability. Also, the device is listed as not having NFC, which is reasonable given that OnePlus did leave that out of the OnePlus 2 as well.In this case, it sounds plausible at least. The OnePlus device listed would include a 4.6-inch 1080p display, a Snapdragon 810 SoC, potentially 4GB of RAM, 64GB of storage, a 12-megapixel rear camera, a 5-megapixel front camera, and Android
Overall, it sounds like OnePlus is planning something of a "mini" version of its high-end OnePlus 2, which features essentially the same specs but with a 5.5-inch display.
What do you all think? Would you be interested in a full-spec device with a sub-5-inch display? Sound off in the comments?