Two year old phone acting up? First thing is to reboot your phone weekly...this is the new Norm for smart phones.
You would have to check your setting (preferences) and CC regarding when the phone goes Cellular vs Wi-Fi. [my phone preference to all connection preferences are Wi-Fi when available].
When you speak of memory I must assume you are speaking RAM, so here is a good article regarding
memory cards. You can always find the specs for the SD card and shop around for the best deal.
You would need to look at the specs of the phone and see the line such as "Supports up to 64.0GB microSD card" for the DORO 7050 or "Supports up to 32.0 GB microSD card" for the ALCATEL GO FLIP.
One thing you can do is to visit the CC website and read the reviews of the phones [sort by ratings list 5-âââââ first]. View the last page and see what the complaints are and judge if they are valid complaints or someone expecting a pound of gold for 50-cents.
Doro details pageGo Flip details page