Xiaomi Official has recently announced that the Xiaomi Mi 5S will be equipped with dual rear camera.
Xiaomi Mi 5S According to the recent news that the Xiaomi Mi 5s mobile phone will carry the Snapdragon 821 processor, adopts 5.15 inch 1080p screen, builds in 6GB RAM, and has 64GB/128GB/256GB ROM, has 16MP main camera, 3410mAh battery and supports QC3.0 fast charging. It adopts a Type-C USB port, supports dual sim card dual standby, and also supports NFC function. Xiaomi Mobile also released the Xiaomi Mi 5S AnTuTu benchmark, which has reached up to 164119 scores.
Of course, the dual real camera design is not first presented on Xiaomi Mobile, the previous Xiaomi Redmi Pro model is the first to adopted that tech. Whether ther will be a promotion on this new model of the dual real camera technology, let's stay tuned for more news.

Source from: http://www.androidmall.co.uk/blog/xiaomi-mi-5s-comes-with-dual-rear-camera/