如果4g被5g赶下了舞台，那我们的4g手机……
如今4g手机几乎成了标配
它的方方面面不断升级。网速也是紧跟步伐“着急”着更新换代
当然这是应时代的需求，这一定是方便大家的移动生活的。现在就来说一下离我们最近的网络的更新换代。
4G的研发阶段集中在2001年至2010年；
2010年至2018年属于运行阶段；国外主流运营商在2010年对此进行了规模建设；2013年中国移动在广州宣布将在2014年底，4G网络将覆盖全国34个城市；2018年4G用户达到11.1亿；
2014年三星率先开发出基于5G核心技术的移动网络；2016年诺基亚与电信传媒公司贝尔再次在加拿大完成了5G测试；到如今5G仍在加速研发，实验，布局，推广阶段。相信在不久的将来大家就能用上。言归正传，现在的4G手机大多数人用的一千两千多的，当然有其他需求的其4G手机价格也相对较高。那么问题来了，如果4G被5G赶下了舞台，那时会是全民换机的狂潮吗？
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