Step counting can use third-party software. First, you go to the app store to download and install.
IPhone 4S is a touch-screen smart phone launched by Apple, which is the fifth generation product of IPhone. 20 1 1 10 years, at the new product launch conference of Let's talk iPhone held in California, USA, Apple released this new generation iPhone running iOS 5 system.
IPhone 4S has been greatly improved in hardware and software, equipped with new siri intelligent voice assistant and iCloud cloud service. In hardware, Apple A5 dual-core processor is adopted, and the front is equipped with a 3.5-inch IPS glass hard screen with a resolution of 960&; Times; 640 pixels, back-illuminated lens pixels increased to 8 million.