No, you must change your foreign communication card when you go abroad. Some mobile phones can't be used abroad. Only Sammo's mobile phone can be used abroad. If you want to buy a mobile phone, you must ask clearly.

Methods of searching the Internet by foreign mobile phones;

1. Confirm whether the mobile phone supports the network frequency band of the country where it is located (some models will realize different network frequency bands when roaming internationally).

2. Unicom version of the mobile phone supports changing the network frequency band to search the network in China. Please refer to the following path: Settings-More Settings-Mobile Network-Network Mode: 1. GSM/WCDMA (automatic mode); 2.GSM only; 3. WCDMA only.

Extended data:

In addition to the original "M-Zone", "China Tour", "Global Connect", "Power 100" and "G3", China Mobile announced the 4G brand "Harmony! Harmony marks the official launch of China Mobile's 4G service, and its development slogan is: Mobile 4G, the international mainstream, one step ahead.

2065438+On July 20th, 2006, Fortune Global 500 was released, and China Mobile Communications Group Company ranked among Fortune Global 500. In August of 20 16, China Mobile ranked 10 among the top 500 Chinese enterprises in 20 16. In July of 20 17, China Mobile ranked 6th among the top 500 Chinese enterprises in 20 16. 20 17 1 1 year1October, and was selected as "Top 20 Innovative Enterprises in Chinese mainland 100 in 20 17". In 20 18, Fortune ranked 53rd in the Fortune Global 500 list.

References:

China Mobile-Baidu Encyclopedia