一个更坏的消息：250U调制解调器消耗电量很快。
更让人惊奇的是，当无人使用时这种纸手机不会消耗电量。
Most impressively, the PaperPhone uses no power when nobody is interacting with it.
计步器服务打开会持续使用定位服务，需要持续消耗电量。
With Pedometer Service, continued use of GPS running in the background can dramatically decrease battery life.
应用推荐