Changing these settings can help you get the most out of your iPhone.

With this year's iPhone 13, 13 Mini, 13 Pro and 13 Pro Max, Apple's iPhone lineup now includes eight devices ranging in size and price, from the compact iPhone SE to larger iPhone 13 Pro Max. (The iPhone SE 3 and iPhone 14 are also rumored to join Apple's growing smartphone collection soon.) Although there are hardware differences between iPhones, each model generally runs on the same software. So no matter which version you have, you can customize your settings to make your iPhone work its best for you. 

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All of the iPhones you can buy from Apple right now run iOS 15, which is packed with improvements to FaceTime, Safari, and many other new features. Aside from the new settings options in iOS 15, there are plenty of features that have been around for a while that you may have missed. Below, we'll take you through the steps to change a handful of settings that will make your iPhone even better. 

For more, here's how to set up your new iPhone and how to transfer your data from your old iPhone. Plus, this iOS 15 trick gives you more iCloud storage for free.

1. Bring back full-screen incoming call alerts

Prior to last year's iOS 14 update, the incoming call screen would take over your entire display when your iPhone is unlocked and being used. It's disruptive, sure, but it also got the job done.

Starting with iOS 14, however, Apple changed the incoming call prompt to look more like a typical alert. That is, a small notification that shows up near the top of the screen when you're using your phone. On more than one occasion I've nearly missed a call because I dismissed the alert as yet another annoying notification that didn't immediately need my attention.

To get the more attention-grabbing full-screen alerts back, go to Settings > Phone > Incoming Calls and tap Full Screen.

This incoming call alert isn't ideal for everyone. 

2. Change Siri's voice

Siri gained two new voices when iOS 14.5 debuted earlier this year. And for the first time ever, Siri no longer defaults to a female's voice. Instead, the first time you set up a new device you'll be asked which Siri voice you want to use. Once you make your selection, Apple will change Siri's voice across all of the devices linked to your Apple ID. It's pretty slick. 

You can check out the voice options by going to Settings > Siri & Search > Siri Voice. To learn more, check out our complete guide to changing Siri's sound.

5G is nice, if you have access to it, but it can also be a battery hog. 

3. Turn off 5G coverage you don't want or have

Apple touts a Smart Data feature that's specific to its 5G phones (the iPhone 12 and iPhone 13 lines) that will automatically switch between 4G LTE and 5G networks -- without you having to know or do a thing -- based on how you're using your device. The automatic switch is part of an effort to improve battery life. However, you may find that your iPhone's battery drains faster than it did before. If you don't want to sacrifice battery life for faster 5G speeds, shut it down. You can always turn 5G back on when you want it, or when service in your area improves.

To turn off 5G on your iPhone 12 or iPhone 13, forcing it to always use 4G LTE even if you have 5G coverage, open the Settings app then go to Cellular > Cellular Data Options > Voice & Data and tap LTE.

Alternatively, if you want your iPhone to exclusively use a 5G connection when available, you can select 5G On.

Read more: AirPods 3 vs. AirPods Pro: Comparing Apple's latest earbuds

4. Fine-tune how much data is used on a 5G connection

If you're happy with 5G performance, here's a network-related setting you should check out. Go to Settings > Cellular > Cellular Data Options > Data Mode where you'll find three different options: Allow more data on 5G, Standard and Low Data Mode.

Even though there are brief descriptions below the three different settings, they don't paint a complete picture for the first option. According to an Apple support document, allowing more data on 5G will give you high-quality video and FaceTime calls, and it also means that your phone can download software updates, stream high-definition Apple TV and Apple Music content, and allows third-party developers to also improve their respective apps.

The default setting on this page will depend on your carrier and your data plan, so it's a good idea to check your iPhone and make sure it's set to your preference.