Smart rings, robot dogs, bendable phones
Mobile World Congress 2024, the world's biggest mobile trade show, had a lot of future-looking tech on display.Arjun Kharpal | CNBCThe Mobile World Congress, the world's largest mobile show, is a place where device makers show off some of their latest innovations.And there was quite a lot on display in Barcelona, Spain, this year.Artificial intelligence took center stage, but there was also plenty of experimentation with different types of screens and first looks at some devices from some of the world's biggest tech…