It is just a marketing or journalism nonsense. No company could support and make profit from mobile phone in this context. Something is missing in this logic.
I think it's possible. I have read some news on it. If you have a look on the following site, you will get an idea how this is possible. I haven't not tried this though.
https://minephone.bitwings.orgThank you for sharing this link. However, I can only see that this mobile phone costs 3000 plus if you want to activate the 2ETH/month of so called mining it will cost another 13ETH just for activation of something which is NOWHERE explained how it works

Ridiculous if you ask me but good luck to all the buyers!