![Sophia, the humanoid robot, created by Hanson Robotics, exhibited during the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/c15f782185f340b19c0b8ee11a2b35c5.jpg)
Sophia, the humanoid robot, created by Hanson Robotics, exhibited during the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![A ZTE musician robot plays the piano at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/a4ee10f22bb74f538094734b246de2e5.jpg)
A ZTE musician robot plays the piano at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![A visitor seen trying the new Samsung S10 smartphone at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/685a98228c6c40b0ba0569755da618bd.jpg)
A visitor seen trying the new Samsung S10 smartphone at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![A flying vehicle on display at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/b839ee3f97c04cdfb1a974158befd203.jpg)
A flying vehicle on display at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![A man holds the new Huawei Mate X foldable 5G smartphone during the Mobile World Congress wireless show, in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/8e6e3d81506a4159b6cdda1fa093c55d.jpg)
A man holds the new Huawei Mate X foldable 5G smartphone during the Mobile World Congress wireless show, in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![A visitor uses a VR gear of HTC-VIVE, at the Mobile World Congress wireless show, in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/ca57d2787bb648c88fbda3c318d0e3e7.jpg)
A visitor uses a VR gear of HTC-VIVE, at the Mobile World Congress wireless show, in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![A robot sews at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/55623be02178433dbfa289c22e69a6d5.jpg)
A robot sews at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)
![Minimo, the new all-electric a two-seater concept vehicle by the Spanish car-maker SEAT, is displayed inside company\'s booth after being unveiled at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)](http://www.ecns.cn/hd/2019/03/01/56505daebe6248fa96c719eeaa5ea542.jpg)
Minimo, the new all-electric a two-seater concept vehicle by the Spanish car-maker SEAT, is displayed inside company's booth after being unveiled at the Mobile World Congress in Barcelona, Spain, Feb. 26, 2019. The annual Mobile World Congress (MWC) runs from 25-28 February in Barcelona, where companies from all over the world gather to share new products. (Photo/Agencies)