With every new iOS released, many users are reluctant to move from old to the latest version of iOS, especially when it comes to devices that have been launched over a year ago. This phobia upgrades usually come from the hand of bad experiences with the operation of the device or any subsequent slowdown system to update. This problem can be caused by many factors, in fact the system upgrade typically involves improvements, but it is not always so, especially since the arrival of iOS 7 ralentizadlo some systems have more than necessary, so it is necessary to conduct these analyzes to see if it really worth upgrading the operating system or not.
We will put three comparative fantastic with three devices running iOS 9, the iPhone 4S, iPhone 5 and iPhone 5S. Needless to say, the iPhone 6 improvement or deterioration is negligible, so it is not necessary to include a comparison of iOS 9.1 and iOS 9.2. How are you things that we like to see and you do not read it, we leave the corresponding videos. Again iAppleBytes released these fantastic videos:
As you can see it on iPhone 4s and iPhone 5 where more improvement is noted, the iPhone 5s have a hardware powerful enough so they do not affect such a small update and so it proved. But we also like to know what our readers think, if you have them improved or worsened the overall system since upgrading to iOS 9.2. Another point to consider is the battery, personal experience tells me that in this regard this latest update has neither improved nor worsened the operation of the device. (source: iAppleBytes [YouTube])