Do you have a good friend you can talk to? Or if it's a problem which you need advice on, you could talk to your school counsellor. Or perhaps a relative, aunt or uncle, whom you are quite close to? If you think you still can't, then talk to God. He is always there for you. Open your heart to...
I believe your kid is facing a "separation" anxiety and the one way he knows how to "express" is through the behaviour you just mentioned. Please talk to him and give him tons of assurances. Punishment will not work in this case. He needs your love and assurances, not punishments nor threats...
Features are one thing. It is what you need that matters. Do you need all of the features in the phones? If not, no use paying for them! You've got to sort this out yourself cos you're the one using it!
Do meetings ever help? It will if it's chaired by kids. They're easy to please. Just give them lollipops and they'll say "yes" or "no" to your proposals. That way, we'll have a happy world.