Google released Nougat in August 2016, but Xiaomi has only just announced details of the handsets that it intends to upgrade to Android 7.0 and 7.1.1, although there's no clear timeframe for doing so.
Mi 4c RSS
Xiaomi's latest handset, the Mi 4c, packs quite a bit of specifications for a very small price. The handset will be offered in China and will start at $200 USD.