Iphone 3g ios最新

iPhone 3G was released in 2008 and it was originally shipped with iOS 2.x. The highest iOS version that the iPhone 3G can support is iOS 4.2.1. Apple stopped supporting the iPhone 3G with software updates in 2010, and since then, the device cannot run any newer versions of iOS.

If you have an iPhone 3G, it is currently stuck on iOS 4.2.1, and it will not be able to run any newer features or security updates from Apple. This means that the device may not be able to run many modern apps, as they may require a newer version of iOS to function properly.