When it comes to the star of international politicians, Obama must bear the brunt. Obama was once called“ President Blackberry ”During the election campaign, BlackBerry won many young people's votes. After taking office, Obama insisted on leaving BlackBerry in the White House, hoping to "directly listen to the voice of people in the White House other than the work team". He also became the first US president to use BlackBerry to send email during his tenure.

Although the BlackBerry phone made great contributions when Obama ran for president, after taking office, Obama once insisted on leaving the BlackBerry in the White House, becoming the first White House owner to "force" the phone. However, he finally had to replace his BlackBerry with the Sect é ra Edge, which was made for him by the US National Security Agency, because the BlackBerry could not meet the certification standards of the US National Security Agency.

German Chancellor Merkel: Blackberry

It is reported that in March 2013, German Chancellor Merkel and other senior government officials were equipped with the latest Intelligent mobile phone 。 This is the same type of smart phone designed for government officials as the Canadian "Blackberry" mobile phone, but it has much higher security performance than ordinary smart phones. It can send documents marked "Top Secret" and information that can only be identified within the internal scope of "government officials".  

Russian President Putin: ZTE Mobile

In 2012, a picture of Putin holding his mobile phone was taken. The mobile phone used by Putin in the photo is confirmed to be ZTE's MTS Glonass945. This is a "Chinese style Russian mobile phone", which is jointly owned by Russian enterprises and China ZTE Jointly developed, it is mainly used to fight against the invasion of US GPS and Apple iPhone 4. This mobile phone can receive GPS and Russian GLONASS satellite signals from the US, and its navigation accuracy is up to 93%.  

North Korean leader Kim Jong un: HTC mobile phone

In February 2013, the media revealed that the mobile phone used by North Korean leader Kim Jong un was HTC's Big Butterfly （Butterfly）。 According to analysis, Kim Jong un chose Taiwan's HTC smart phone instead of Apple's iPhone or Samsung's Galaxy phone in South Korea because he was afraid of unnecessary annoyance and negative criticism caused by using American and Korean brands.

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