The Redmi 9 just popped up on Xiaomis global RF certification page, confirming that the phone exists and its model number M2004J19G. This number was also spotted in a batch of devices that were recently certified by the 3C.
These certifications dont reveal much. A related model, the M2004J19C, is listed at the 3C with a 10W charger, though that would be a weird downgrade both the Redmi 8 and the cheaper 8A support 18W charging.
Anyway, these will be 4G phones, which probably comes as no surprise. Previous leaks showed a photo of the quad camera on the back of the phone, which allegedly has a 13MP main, 8MP ultra wide and 5MP macro cameras plus a 2MP depth sensor.
The Redmi 9 is expected to be fairly large with a 6.6″ screen and to be powered by a Helio G70 chipset. This would be a massive improvement over Redmi 8’s Snapdragon 439 chip and its quad Cortex-A53 core – the G70 has two A75 cores plus six A55, not to mention the jump in GPU performance.