Those Home buttons you see in the picture (above) are reportedly the home buttons of Apple’s next-gen iPhone (iPhone 6), as noticed by AppleBitch.com and reported by MacRumors. AppleBitch noticed that Chinese smart phone parts vendor TVC-Mall recently started selling OEM iPhone 5’s home button for black and white iPhone 5.
As you can see from the picture, the home button still is a rounded shape like current iOS devices such as the iPhone and iPad home button, but it is a rounded rectangle not just rounded.