I have a 2014 Samsung A3, which is increasingly dropping calls. Texts always come through but calls often dont stay connected. Am told by my network that its because it is old. Have no idea if that is true - whether it is the phone or the network. Dont really want to pay for a new phone but if I did replace it, I am looking for something as small as possible. Use the phone to make phone calls, check email and a couple of apps (travel, telegram etc). So needs are basic and most important feature is to be able to make clear calls.

Can you recommend something?

Deliberatly wanted a small light weight phone but I cannot find anything that matches this A3. Have not found a 4.5 inch screen phone, so even started wondering whether to try a candy/dumb phone like Nokia 8000 or 6300 - both have facebook and whatsapp but I use neither of them, instead use a couple of other android apps. 

Coming back to Samsung, If I managed to get the newer A3 would that be a good idea? Or A5? So many of the others phones are just way too big and heavy for some folk like me or those with hand disability. Any help appreciated. Thanks