Apple's defaults showcase features, not necessarily what's best for you.
When a powerful new device arrives in our hands, it arrives shaped by its maker's assumptions — not our own lives. The iPhone 12, Apple's first 5G phone, reached millions of users in late 2020 with defaults tuned for the average, not the individual. A handful of deliberate adjustments — to connectivity, light, privacy, and attention — can quietly realign the machine to serve the person, rather than the other way around.
- The iPhone 12 ships with 5G always hunting for a signal, silently draining battery in areas where that signal may never arrive.
- Notifications, bright screens, and incoming calls interrupt sleep and focus by default — the phone demands attention on its own schedule, not yours.
- Apple buried meaningful controls — dark mode's battery savings, Face ID's alternate appearance, HDR video's compatibility pitfalls — deep enough that most users never find them.
- Fourteen targeted settings changes, from Cellular to Privacy, offer a path from factory defaults to a phone that reflects how a specific person actually lives.
- The stakes are real: unreviewed app permissions quietly hand over location, microphone, and camera access to software that may not need any of it.
There is a gap between the iPhone 12 as Apple ships it and the iPhone 12 as it could actually work for you. Closing that gap takes less time than most people expect.
Begin with 5G. Apple's first 5G iPhone enables the feature by default, but in areas with weak or absent 5G coverage, the phone burns battery searching for a signal it cannot find. Switching to LTE in Settings > Cellular > Cellular Data Options preserves power without meaningful sacrifice. For those with reliable 5G, the Data Mode setting offers further control over how aggressively the phone uses that connection.
Sleep and focus deserve protection. Do Not Disturb is off by default, leaving the phone free to buzz through the night. A scheduled window of silence costs nothing and can still allow emergency calls from repeated numbers or trusted contacts to ring through.
Dark mode is more than an aesthetic preference on the iPhone 12. Its OLED display draws less power rendering dark pixels than bright ones, so switching to dark mode in Display & Brightness settings offers a genuine battery benefit — particularly for heavy evening users. Nearby in the Accessibility settings, disabling Auto-Brightness returns manual control over screen brightness to the user.
The App Library, introduced in iOS 14, offers relief from cluttered home screens. New downloads can be routed directly to the library rather than the home screen, keeping the interface clean. Dynamic wallpapers that shift between light and dark versions add a quiet elegance to the same setting.
Call behavior and Face ID both reward a closer look. Incoming calls now appear as a small banner rather than a full-screen takeover — useful for multitaskers, but easy to miss. Lock screen notification previews are hidden by default for privacy; revealing them is a single setting change. Face ID can also be trained on a second appearance, improving recognition in variable conditions.
The camera's HDR Dolby Vision recording produces stunning footage, but social platforms often cannot handle it gracefully. Sharing through the Photos app rather than directly through Instagram or Facebook ensures the video converts properly before upload.
Finally, Control Center and the Privacy menu reward deliberate customization. Adding Low Power Mode, Wallet, or a dark mode toggle to Control Center saves repeated trips into Settings. And a few minutes spent in Settings > Privacy — reviewing which apps hold access to location, microphone, camera, and photos — can quietly close doors that were left open during the rush of initial setup.
You've just unboxed a new iPhone 12. It's beautiful. The screen is bright, the camera system is impressive, and everything feels fast. But out of the box, Apple's default settings aren't necessarily optimized for how you actually live. A few quick adjustments in the Settings app can transform your experience—better battery life, fewer nighttime interruptions, a cleaner home screen, and tighter control over what apps can see.
Start with 5G. Apple's iPhone 12 lineup was the company's first to support the technology, and the phones ship with it enabled by default. There's a catch: if you live in an area with spotty or nonexistent 5G coverage, leaving it on will drain your battery faster as your phone constantly searches for the signal. The solution is simple. Open Settings, navigate to Cellular > Cellular Data Options > Voice & Data, and select LTE. Your phone will stick to 4G, and you can always turn 5G back on later when coverage improves in your area. If you do have reliable 5G service, you can fine-tune how aggressively your phone uses it. In the same Settings menu, look for Data Mode and choose between three options: Allow More Data on 5G (which enables high-quality video calls and app updates), Standard, or Low Data Mode. The default depends on your carrier, so it's worth checking your preference.
Next, address the interruptions. Do Not Disturb is disabled by default, which means your phone will beep and buzz all night long—a particular problem if you're a light sleeper. Enable it by going to Settings > Do Not Disturb and set a schedule, or turn it on manually when you go to bed. Your notifications will still be waiting in the morning, but your phone will stay silent. If you're worried about emergencies, you can configure Do Not Disturb to allow repeat calls from the same number to ring through, or to always permit calls from your favorite contacts.
Dark mode deserves its own mention. It's not just an aesthetic choice. Because the iPhone 12's display uses OLED technology, darker colors consume less power than bright whites. Enabling dark mode—Settings > Display & Brightness > Dark—will noticeably extend your battery life, especially if you use your phone heavily in the evening. Apple's built-in apps switch automatically, and most third-party apps now support it too. While you're in Display & Brightness, consider disabling Auto-Brightness. By default, your phone adjusts screen brightness based on ambient light, but if you want full control, turn it off in Settings > Accessibility > Display & Text Size. You can then adjust brightness manually whenever you need to.
Your home screen can become cluttered quickly. iOS 14 introduced the App Library, which acts like a hidden drawer for apps you don't use daily. To prevent new apps from automatically landing on your home screen every time you download something, go to Settings > Home Screen and choose either Add to Home Screen or App Library Only, depending on your preference. While you're customizing your phone's appearance, check out the new wallpapers. Open Settings > Wallpaper and look for the half-black, half-white circle on each option—that indicates the wallpaper has both light and dark mode versions that switch automatically based on your phone's current setting.
Notifications and Face ID deserve attention too. iOS 14 changed how incoming calls appear when you're using your phone—they now show as a small alert at the top of the screen instead of taking over the entire display. If you find yourself missing calls, go to Settings > Phone > Incoming Calls and select Full Screen to restore the old behavior. For lock screen notifications, Face ID hides the content of alerts by default for privacy. If you'd rather see who texted you and what they said, go to Settings > Notifications > Show Previews and select Always. Face ID itself can be improved by adding an alternate appearance. If the feature struggles to recognize you consistently, go to Settings > Face ID & Passcode, enter your PIN, and select Set Up An Alternate Appearance to enroll your face a second time.
The camera system on the iPhone 12 can record HDR video with Dolby Vision, which produces brighter, more colorful footage with better contrast. The problem is that not every app supports it yet. If you upload an HDR video to Facebook or Instagram directly through their apps, it will look washed out. You have options: disable HDR recording entirely in Settings > Camera > Record Video, or leave it on and use the Photos app to share instead—it will automatically convert the video to standard dynamic range. The Photos app and iMovie can also handle editing HDR footage.
Finally, take control of Control Center and privacy. Control Center—accessed by swiping down from the top-right corner on Face ID iPhones—gives you quick access to toggles and shortcuts. Customize it by going to Settings > Control Center > Customize Controls, where you can add or remove features using the green plus and red minus buttons. Many people find it useful to add quick access to Wallet, Low Power Mode, and dark mode toggle. For privacy, spend a few minutes reviewing Settings > Privacy to see what permissions you've granted to each app. It's easy to approve everything during setup just to get an app running, but taking time to restrict location access, camera, microphone, and photo library access to only the apps that genuinely need them will protect your data and extend battery life.
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Why does Apple ship the iPhone 12 with settings that aren't optimal? Wouldn't they want users to have the best experience out of the box?
Apple's defaults are designed to showcase features and capabilities—5G, Face ID, full notifications. They're not necessarily wrong, but they're not personalized. What's best depends entirely on where you live, how you sleep, and what you care about.
The 5G thing seems like a big one. People buy these phones partly for 5G, and you're saying to turn it off?
Only if you don't have coverage. If your area doesn't have 5G yet, leaving it on just drains your battery while your phone hunts for a signal that isn't there. It's not about rejecting the feature—it's about not paying a battery cost for something you can't use.
What about the Do Not Disturb setting? That seems like something people would want enabled by default.
You'd think so. But Apple leaves it off because some people need to be reachable at all times. By making it opt-in, they avoid annoying people who rely on their phones for emergencies. The tradeoff is that light sleepers have to discover the setting themselves.
Dark mode saves battery. How much of a difference does it actually make?
On an OLED screen like the iPhone 12's, it's meaningful—maybe 10 to 15 percent longer battery life if you use dark mode consistently. It's not transformative, but it's real, and it costs nothing to enable.
The HDR video thing sounds frustrating. You get this beautiful footage and can't share it properly?
It's a timing problem. The technology is ahead of the ecosystem. Apps will catch up, but right now, if you upload HDR video directly through Facebook or Instagram, it looks worse than standard video. Using the Photos app as an intermediary works around it, but it's an extra step most people don't know about.
So the real lesson is that the iPhone 12 needs a setup conversation, not just unboxing?
Exactly. Spend 20 minutes in Settings after you get the phone, and you'll have a device that actually works the way you want it to. Apple gives you the tools. You just have to know they're there.