CNBC's Arjun Kharpal is in Barcelona at Mobile World Congress where smartphone makers such as Samsung are talking up AI phones. But will it revitalize a stagnant smartphone industry? See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info. 0:00 - Sponsor 0:30 - Welcome 3:10 - What is Mobile World Congress? 6:30 - Stat of the week 9:00 - What is an AI phone? 11:30 - AI chips 12:15 - A message from Cristiano Amon, Qualcomm CEO 13:45 - What smartphone makers are saying about AI 15:50 - Huawei's smartphone spinoff Honor 18:45 - Briefing with Huawei's consumer team 20:00 - 5g or 5.5g 21:35 - Key takeaway on AI from MWC 23:50 - Top three tech from MWC 30:10 - Samsung's Head of Health on Samsung's smart ring 32:40 - Exclusive from Honor's CEO: Working on smart ring 34:05 - What else is happening in the world of tech? 34:40 - Apple refocusing on AI 36:10 - Stat of the week reveal