Smartphone makers will soon face an unlikely competitor. Concerns about the impact of social media are driving demand for old-school Nokia brick-like handsets, now known as feature phones.

A 'phone addict' mum has resorted to locking away her iPhone and swapping it for old school Nokia every night - claiming it can help people 'take back control', de-stress and even banish acne.

Celeste Lewis, a parent with a daughter in Year 7 in Cardiff, compromised by getting her an "old school" Nokia, but said lessons should be about education and not about smartphones. Unlike in ...