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Technologies

Physical SIM Card vs. eSIM: What Sets Them Apart and Which Should You Choose?

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.

For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it easy to swap your phone or carrier whenever you’re getting a new device or you’re traveling. Nowadays, however, most modern phones also support eSIMs. As the name indicates, eSIMs are embedded directly into the phone and the carrier information is programmed remotely via software.

Whether you choose a physical SIM or an eSIM depends on several factors, so we’ve outlined a few commonly asked questions below. 

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What do physical SIMs and eSIMs do?

A physical SIM card is essentially a tiny card with a chip that connects your phone to your wireless carrier. It contains identifying information like your account info and phone number. Without it, your phone won’t have a number or any way to connect to a carrier and you won’t be able to make or receive calls and text messages. 

Some phones allow you to remove the physical SIM card, which allows you to easily swap phones or carriers. This is useful if you want to use your existing number in another phone, or if you want to use your phone with another carrier. Just insert a different SIM card and you can connect to a different cell network. For years, some phones supported having dual SIM cards. You might have your home number on one and your work number on the other.

An eSIM, however, is embedded directly into the phone’s circuitry and cannot be ejected or removed. Instead, all the carrier information is programmed remotely via an app. The biggest advantage of eSIMs is that it allows one phone to have multiple lines even from different carriers. This is especially useful when traveling, as you can add a global eSIM provider without having to purchase and wait in line for a physical SIM when you arrive at your destination. For more on eSIMs, you can check out our explainer here. You can also move your service from one phone to another without needing to dig out a SIM ejector tool but you might need to call your wireless service provider for assistance.

Can I have an eSIM and a physical SIM?

Yes, many phones allow you to have an eSIM and a physical SIM simultaneously, even from different carriers. You can use both simultaneously, or you can designate one as active while the other is on standby. Some people designate one number for work while the other is for personal use. 

How do I switch phones with a physical SIM or an eSIM?

To switch phones with a physical SIM, all you have to do is eject it from your existing phone and then insert it into a new one. This typically works regardless of the phone you are switching between, allowing you to move your service from an iPhone to Android phone at will.

With an eSIM, your carrier can either transfer the number over for you or you can do it yourself through your phone’s settings. Your carrier will often send detailed instructions on how to do so. Typically it’s easy to transfer your eSIM when moving to a phone of the same operating system, for instance moving from an iPhone 14 to an iPhone 16 where both are on iOS or from a Samsung Galaxy S21 to an S25 because both use Android. If you are switching between iOS and Android, you’ll likely need to call your provider for assistance.

Converting an existing physical SIM card to an eSIM is fairly easy too, although it sometimes requires more steps. You can check out our guide on how to do so here or you can refer to your carrier for more specific instructions. 

Do any phones require eSIM?

Yes, some phones are eSIM-only and therefore require eSIM. iPhone 14 models and newer are eSIM-only in the US, meaning they lack a physical SIM card slot. Most Android phones include a physical SIM slot and support for eSIM.

Do all phones accept eSIM?

Most modern iOS and Android phones accept eSIM, such as the newer iPhones, the Pixel 6 and the Samsung Galaxy S21 and newer. Simpler phones, however, like HMD’s Barbie Phone and the minimalist Light Phone do not. For those phones, you’ll want a physical SIM card. 

15 Years of Android: Comparing the Newest Android Phone to the First

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Technologies

Today’s NYT Mini Crossword Answers for Friday, Sept. 19

Here are the answers for The New York Times Mini Crossword for Sept. 19.

Looking for the most recent Mini Crossword answer? Click here for today’s Mini Crossword hints, as well as our daily answers and hints for The New York Times Wordle, Strands, Connections and Connections: Sports Edition puzzles.


I didn’t get off to a great start with today’s Mini Crossword, completely blanking on 1-Across. Thankfully, the other clues were easy, and that answer filled itself in. Need some help? Read on. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Cancel on plans at the last moment
Answer: FLAKE

6A clue: Shade of light purple
Answer: LILAC

7A clue: ___ acid (protein builder)
Answer: AMINO

8A clue: Sarcastic «Yeah, sure»
Answer: IBET

9A clue: Sardonic boss on «Parks and Recreation»
Answer: RON

Mini down clues and answers

1D clue: Stylish panache
Answer: FLAIR

2D clue: Party game that tests how low you can go
Answer: LIMBO

3D clue: Visitor from outer space
Answer: ALIEN

4D clue: Philosopher who posed the question «What can I know?»
Answer: KANT

5D clue: Environmentally friendly prefix
Answer: ECO

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Technologies

Your Old Android Isn’t Dead. These Tweaks Can Bring It Back to Life

Clear space, optimize your battery and update the basics. These quick changes can make an old Android phone feel snappier.

You don’t need the latest Android flagship to get good performance. 

Thanks to longer software support from brands like Google and Samsung, older models can still run smoothly, as long as you give them a little attention. Clearing out unused apps, updating your software and tweaking a few settings can breathe new life into a device that feels sluggish. These quick fixes can help your phone last longer and save you from spending on an early upgrade.

Before you start shopping for a replacement, try a few simple adjustments. You might be surprised by how much faster your phone feels once you free up space, optimize battery use and turn off background drains.

Whether you use a Samsung Galaxy, Motorola or OnePlus phone, chances are you can still improve battery life and overall speed without buying something new. Just remember that Android settings vary slightly from brand to brand, so the menus may look a little different depending on your phone.

Don’t miss any of CNET’s unbiased tech content and lab-based reviews. Add us as a preferred Google source on Chrome.

Settings to improve your battery life

Living with a phone that has poor battery life can be infuriating, but there are some steps you can take to maximize each charge right from the very beginning:

1. Turn off auto screen brightness or adaptive brightness and set the brightness level slider to under 50%

The brighter your screen, the more battery power it uses. 

To get to the setting, pull down the shortcut menu from the top of the screen and adjust the slider, if it’s there. Some phones may have a toggle for auto brightness in the shortcut panel; otherwise, you need to open the settings app and search for «brightness» to find the setting and turn it off.

2. Use Adaptive Battery and Battery Optimization

These features focus on learning how you use your phone, including which apps you use and when, and then optimizing the apps and the amount of battery they use. 

Some Android phones have a dedicated Battery section in the Settings app, while other phones (looking at you, Samsung) bury these settings. It’s a little different for each phone. I recommend opening your settings and searching for «battery» to find the right screen. Your phone may also have an adaptive charging setting that can monitor how quickly your phone battery charges overnight to preserve its health.

Why you should use dark mode more often

Another way to improve battery life while also helping save your eyes is to use Android’s dedicated dark mode. Any Android phone running Android 10 or newer will have a dedicated dark mode option. 

According to Google, dark mode not only reduces the strain that smartphone displays cause on our eyes but also improves battery life because it takes less power to display dark backgrounds on OLED displays (used in most flagship phones) than a white background. 

Depending on which version of Android your phone is running, and what company made your phone, you may have to dig around the settings app to find a dark mode. If your phone runs Android 10 or newer, you’ll be able to turn on system-wide dark mode. If it runs Android 9, don’t despair. Plenty of apps have their own dark mode option in the settings that you can use, whether or not you have Android 10. 

To turn it on dark mode, open the Settings app and search for Dark Mode, Dark Theme or even Night Mode (as Samsung likes to call it). I suggest using dark mode all the time, but if you’re not sure, you can always set dark mode to automatically turn on based on a schedule, say from 7 p.m. to 7 a.m. every day, or allow it to automatically switch based on your location at sunset and sunrise. 

Keep your home screen free of clutter

Planning to hit up the Google Play Store for a bunch of new Android apps? Be prepared for a lot of icon clutter on your home screen, which is where shortcuts land every time you install something.

If you don’t want that, there’s a simple way out of this: Long-press on an empty area of your home screen and tap Settings. Find the option labeled something along the lines of Add icon to Home Screen or Add new apps to Home Screen and turn it off. 

Presto! No more icons on the home screen when you install new apps. You can still add shortcuts by dragging an app’s icon out of the app drawer, but they won’t appear on your home screen unless you want them to.

Read more: Best Android Phones You Can Buy in 2024

Set up Do Not Disturb so that you can better focus

If your phone routinely spends the night on your nightstand, you probably don’t want it beeping or buzzing every time there’s a call, message or Facebook alert — especially when you’re trying to sleep. Android offers a Do Not Disturb mode that will keep the phone more or less silent during designated hours. On some phones, this is referred to as the Downtime setting or even Quiet Time.

Head to Settings > Sounds (or Notifications), then look for Do Not Disturb or a similar name. If you can’t find it, search for it using the built-in search feature in your settings.

Using the feature, you can set up a range of hours when you want to turn off the digital noise. Don’t worry, any notifications you get while Do Not Disturb is turned on will still be waiting for you when you wake up. Also, you can typically make an exception that allows repeat callers and favorite contacts’ calls to go through. Turn that on. If someone is calling you in an emergency, odds are they are going to keep trying.

Always be prepared in case you lose your phone or it’s stolen

Is there anything worse than a lost or stolen phone? Only the knowledge that you could have tracked it down if you had turned on Google’s Find My Device feature.

To prepare for a successful recovery, here’s what you need to do: Open the Settings app and then search for Find My Device. It’s usually in the Security section of the Settings app.

If you have a Samsung device, you can use Samsung’s Find My Mobile service, which is found in Settings > Biometrics and security > Find My Mobile

Once that’s enabled, you can head to android.com/find from any PC or mobile device and sign in to your account. Samsung users can visit findmymobile.samsung.com to find a lost phone. 

If you have trouble setting any of this up, be sure to read our complete guide to finding a lost Android phone.

Assuming your phone is on and online, you should be able to see its location on a map. From there, you can make it ring, lock it, set a lock screen note to tell whoever has it how to get it back to you, or, worst-case scenario, remotely wipe the whole thing.

And always keep your phone up to date

As obvious as it may seem, a simple software update could fix bugs and other issues slowing down your Android device. 

Before you download and install the latest software update, make sure your device is connected to Wi-Fi, or else this won’t work.

Now, open the Settings application and type in Update. You’ll then either see Software update or System update — choose either one. Then just download the software, wait for a few minutes and install it when it’s ready. Your Android device will reboot and install the latest software update available.

There’s a lot more to learn about a new phone. Here are the best ways to boost your cell signal, and here’s a flagship phone head-to-head comparison. Plus, check out CNET’s list of the best cases for your Samsung phone. More of an Apple fan? We have tips for boosting your iPhone’s performance, too.

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Technologies

Your Pixel 10 Might Have Issues With Older Wireless Chargers

You might want to try taking the case off your phone in order to successfully charge it.

When Google introduced the Pixel 10 lineup in August, it became one of the first major Android phones to receive the Qi 2 wireless charging standard, which Google calls Pixelsnap. However, users noticed issues with wireless charging on the Pixel 10  almost immediately after its release. 

Some people are having trouble charging their phone with the new Pixelsnap charger, and others are having issues with older wireless chargers, including Google’s own Pixel Stands. The bulk of the problems happen when a case is on the phone — whether it has the magnet array or not.

I own both the first and second generation Pixel Stands and both will charge my Pixel 10 Pro XL without an issue if there’s no case on it. However, when I add a case to my phone, the problems begin. 

I have three cases for my phone, the Mous Super Thin Clear Case, the Magnetic Slim Case Fit by Grecazo, and a no-name soft TPU case. If my phone has any of those cases on and I attempt to charge it while it’s vertical, it starts to charge and then stops after a second or two, and keeps doing that. 

I can fix this for the first-generation Pixel Stand by turning the phone horizontal, but it will still charge very slowly. I can’t seem to fix it at all for the Pixel Stand 2 — vertical, horizontal, it doesn’t charge. 

Not everyone has this issue

The problem doesn’t seem to be universal. CNET editor Patrick Holland said he had no issues charging the Pixel 10 Pro during his time with it. 

A Google spokesperson told me the Pixel 10 lineup is not optimized for older Qi wireless charging standards, but that doesn’t necessarily mean the phones won’t work with older wireless chargers. 

Qi 2 is backwards-compatible with older standards, but the phone’s height and charging coil placement on both the phone and the charger are still factors. If you’re having problems, you might see if removing the case helps.

The prospect of potentially needing to replace your older wireless chargers with newer ones isn’t ideal, especially if you shelled out $80 for one or both of Google’s own Pixel Stands. Still, if you want the best wireless charging speed for your brand new Pixel 10 phone, it won’t be with wireless chargers that only support older Qi standards.

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