I would like to suggest the following OneUI feature for data roaming when using Dual-SIM mode:
Currently, data roaming can only be switched on or off for the entire device.
It would be much better if you could set data roaming per each SIM instead (e.g. SIM1 = data roaming on, while SIM2 = data roaming off at the same time)
This has many advantages and can also lead to a reduction in unwanted roaming charges due to accidental use, which is probably one of the reasons why the competition has long since adopted this feature as well. (e.g. iPhone, Google Pixel, ...).
Therefore, it would be very good to have this feature in Samsung OneUI as well.
I am talking about Settings > Connections > Mobile networks > Data Roaming option.
There is always only one option for me. When using dual sim, turning it on will turn on data roaming for BOTH SIMs and turning it off will turn off data roaming also for both.
On a Google Pixel, I can turn on/off data roaming individually and per SIM.
