7 Things to Know About the iPhone 7 iOS 10.2.1 Update

The iPhone 7 iOS 10.2.1 update now available for download. With that in mind, we want to take a look at the most important things to know, right now, about Apple’s iPhone 7 iOS 10.2.1 update.

Last year, Apple put the iPhone 7’s iOS 10.2.1 update into beta for developers and the general public. The beta let users test the iOS 10.2.1 update’s performance ahead of the official release date.

In January, Apple pulled the iOS 10.2.1 update from beta and released it for iPhone 7 models around the world. The next time you check for an update you might encounter the iOS 10.2.1 update and its tiny change log.


iOS 10.2.1 is a small upgrade for the iPhone 7. It comes with a list of unnamed bug fixes and 13 security patches. If you’re upgrading directly from iOS 10.2, you’re looking at a 67MB update.

If you’re coming from something older than iOS 10.2, your iOS 10.2.1 update will be much larger thanks to iOS 10.2 and any iOS updates you skipped. Features and fixes from older updates will be baked into your iOS 10.2.1 update.

Today we want to take a look at the most important things you need to know about the iPhone 7 iOS 10.2.1 update.

This roundup includes iOS 10.2.1 tips, some details about the update’s performance, and a look at what’s ahead for the iPhone 7 and iOS 10.

We’ll continue to update this with new information so check back in with us for regular updates.

iPhone 7 iOS 10.2.1 Update Review

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iPhone 7 iOS 10.2.1 Update Review

Before we get into the iPhone 7 iOS 10.2.1 update's performance we want to talk a little bit about the download/installation process. 

The iPhone 7 iOS 10.2.1 download took about five minutes to complete over a fast Wi-Fi connection. The installation process took us another five minutes to complete. 

Mileage will vary but we recommend putting aside about 10 minutes to monitor your download and installation. We haven't heard about any major iOS 10.2.1 installation issues but there's no telling what you might run into. 

As for the iPhone 7 iOS 10.2.1 update's performance, we've been keeping an eye on a few key areas including battery life and connectivity. We've spent a little more than a week with the iPhone 7 iOS 10.2.1 update and here's what we've found. 

Battery life is still behaving. We haven't experienced any weird drain. Battery life is normal on our iPhone 7 variants. Our iPhone 7 and iPhone 7 Plus models continue to perform on a high level. 

Wi-Fi, cellular data and Bluetooth connectivity remains strong. We've tested the phone and the iOS 10.2.1 update with several different ISPs, routers and Bluetooth devices. We haven't noticed anything out of the ordinary at the week mark. 

Random reboots have been a problem on our iPhone 7 models but we haven't noticed any in the week since the iOS 10.2.1 release. We haven't noticed any UI lag either. Animations and transitions are still speedy and fluid. 

So far, the iPhone 7 iOS 10.2.1 update feels stable on our models. The combination of steady performance, bug fixes, and security patches make it an update worthy of your consideration.

We've put together a list of reasons to, and not to, install the iOS 10.2.1 update on your iPhone right now. So if you're on the fence about making the jump to the new update, we recommend reading it before making your move. 

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