Xiaomi launched the Redmi 6 series back in June, but there was no Note variant whatsoever, just the Redmi 6A and the Redmi 6 Pro (later arriving as Mi A2 Lite with stock Android).
Two phones just got certified by the Eurasian Economic Commission (EEC) in Russia and by the looks of it, they are indeed the Redmi Note 6 and the Redmi Note 6 Pro.
The listing of the two Xiaomi phones
Both phones appeared under one listing with the model numbers M1806E7TG and M1806E7TH. This is not the first time these devices are getting certified – they already appeared at FCC and Taiwans NCC and will arrive with MIUI 9 out of the box and will offer all latest Wi-Fi, voice and data connectivity standards.
The Redmi Note 6 is expected to be the logical successor of the Redmi Note 5/Redmi 5 Plus, while the Redmi Note 6 Pro might be the alternative variant, similar to the Redmi Note 5 Pro or the Redmi Note 5 AI Dual Camera.