Mobile World Congress 2017

Rory Cellan-Jones sees the latest smartphones from Nokia and the return of the iconic 3310 featurephone. We ask the man behind Pokemon Go whether augmented reality will have more mass appeal than virtual reality. And we ask Intel whether 5G technology is overhyped. With independent analysis from Ben Wood of CCS Insight and Carolina Milanesi of Creative Strategies. Plus Jane Wakefield from the BBC Online tech desk rounds up the week's other tech news.

(Image: Arto Nummela of HMD Global, owner of the Nokia phone brand, reveals the relaunched 3310 at a press conference in Barcelona, Credit: JOSEP LAGO/ AFP/ Getty Images).