Comment by Rzor
In case anyone wants a few links containing this SOC or similar, there's an entire article on Hackaday and a bunch of links shared in the comments:
https://hackaday.com/2022/08/03/hackable-20-modem-combines-l... (search for Alibaba/Aliexpress/Amazon)
Before stumbling on this link I actually found one that mentions a MSM8916 in the description (it even has a screen, sadly no RAM information):