The Redmi 6 is rumoured to run Android 8.1 Oreo, and sport a 5.45-inch HD+ (720x1440 pixels) display with an 18:9 aspect ratio. The SoC powering the Redmi 6 could be an octa-core Qualcomm Snapdragon 625, coupled with 2GB/ 3GB/ 4GB of RAM and 16GB/ 32GB/ 64GB of internal storage. As for battery specifications, a 3000mAh unit is expected.
There might also be a Redmi 6 Plus or Redmi 6 Pro with a bigger 5.84-inch full-HD+ display that has a 19:9 aspect ratio. This variant might come with a dual selfie camera setup consisting of 12-megapixel and 5-megapixel sensors, and a larger 4000mAh battery. Additionally, there could be a cheaper Redmi 6A with features like a dual rear camera setup, a 5.45-inch HD+ display, a Snapdragon 625 SoC, MIUI on top of Android 8.1 Oreo, and a 3000mAh battery.