I have a WiFi router and two WiFi extenders in my house.

Each has its own unique name.

When I move around in the house, I would like my Samsung S9 android phone to automatically connect to the strongest WiFi signal.

This currently does not happen if the weak signal is still (slightly) present, even when there is a strong signal that could have been used.

I understand that one wants to prevent a ping-pong between WiFi signals and therefore there should be a threshold. For instance the switch over should only happens once the signal strength of the weak signal falls below (say) 30% of that of the strong signal.

It is very irritating to get poor internet performance until one manually connects to the strong signal.

I strongly suggest that Samsung develop such a feature.