On September 13, 2016, following the release of iOS 10, Apple dropped support for the iPhone 4S, making iOS 9 the last major iOS version available for the device.

The iPhone 4 models are the same dimensions as the iPhone 4S but weigh slightly less — 4.8 ounces (137 g). The iPhone 4, iPhone 4S, and iPhone 5 all have dual cameras, but there are important quality differences between them.

Both phones are 4.5 inches tall, 2.3 inches wide, and 0.37 inches thick. The only size difference between them is that, technically, the iPhone 4 weighs in at 4.8 ounces, while the 4s comes in at a whopping 4.9 ounces. Not a huge difference.

Let’s look at some of the most popular choices for selling your old iPhone.

1. SellCell. Sellers can compare several buyback options at once with SellCell.
2. BuyBack Boss.
3. OCBuyBack.
4. Decluttr.
5. Swappa.
6. Gazelle.
7. ItsWorthMore.
8. NextWorth.

PSA: WhatsApp no longer works on iPhone 4s, app now requires iOS 10 or later. The popular instant messaging app WhatsApp was updated this week with a change that will impact some users who still have old phones. The latest version of the app has dropped support for iOS 9, which means it will no longer work on iPhone 4s …

Every year-end, WhatsApp ends support for older iOS and Android smartphones. In 2020 beginning, WhatsApp stopped working for Android phones running on Android 2.3. 7 operating system and lower as well as iPhones running on iOS 8 and lower.

1. Click on Device Manager.
2. Save WhatsApp to Your App Library.
3. Search for WhatsApp.
4. Download WhatsApp.
5. Click on Install to Device.
6. Tap App Install and Install Now.
7. Select the App to Install.
8. Choose WhatsApp to Device.

All iPhone models up to the iPhone 4 will lose support for the messaging platform in the next few days. The iPhone models include the iPhone 4S, the iPhone 5, the iPhone 5S, the iPhone 6, and the iPhone 6S.