I received these bell pods from my bell service and I attach them to the wall and connected them from the bell wifi app but my connection was still bad and for some reason, Ethernet was not working when I attach it to my pc. If I attached Ethernet into one pod and to the modem will the other have better wifi?
I have not clue what devices you are talking about.
In general the best way to extend wifi coverage is to run a ethernet cable from the router to the remote room and then place a AP in that room. If the devices you have can run as a AP then you should get very good wifi coverage using that solution.