4 reasons why you should use your phone’s dual SIM feature

Many modern smartphones, whether Android or iPhone, have dual SIM functionality. This means they can use two SIM cards, whether it’s two physical SIMs, two eSIMs, or a combination of a physical SIM and an eSIM. However, some people ignore this and choose to use a single SIM card instead. If you’re one of them, you may be underusing your phone because this feature alone can give you more control over your communication.

You may simply not know that your phone can use two SIM cards. Before you get excited, you need to check. If you have an iPhone X or newer, it can use a nano-SIM and an eSIM. For Androids, it depends on the manufacturer, but you can check your phone’s network settings to see if there is an option for SIM 2 or eSIM. If you are still unsure, open the SIM slot and see if there are two SIM slots.

With the dual SIM feature, you can use two numbers, networks and plans without buying a second phone. Benefits include broader coverage and cheaper rates, as well as the ability to separate work and home life. It’s also great for avoiding roaming charges when you travel and switch to a new mobile carrier. Once you consider all the advantages offered by dual SIM cards, you not only get a nice advantage included in your phone, but a practical tool for solving a wide range of practical problems.

There are several disadvantages to using a single network. Let’s say you’re traveling from one city to another and you enter an area without coverage. You ask the person next to you if they’re having the same problem, but they tell you their coverage is perfectly good since they’re on another network. If only you had that provider’s SIM card, you could easily switch providers without losing your ability to communicate or use the Internet. This can be particularly useful in an emergency.

Apart from switching to another network, you can also enjoy the benefits offered by different mobile providers. Let’s say your main mobile carrier offers a good plan with unlimited texting and calling, but very expensive data plans. If you’re streaming to your phone, you can easily hit that limit in no time. If there is another provider that offers higher data limits at an affordable price, you can purchase their SIM card and switch to it during heavy streaming sessions. Just make sure to set up a PIN for both SIM cards to make them safer to use.

Sometimes you might miss an important call because your phone is busy. You are making a plan with your friend on the phone, but at the same time an important client or your boss is trying to reach you. It’s times like these that not answering a call can waste your time. However, if you use the dual SIM feature, you may see that an important person is calling you on your other number. You can put the other person on hold or tell them you will call them back and handle this matter.

This can also be useful if you usually make business calls for which you need to be reimbursed. When it’s just one SIM card, these calls can easily get mixed up with personal calls you’ve made, making it difficult to separate them when it comes time to check your phone bill. With two SIMs, everything is clean and separate. Keep in mind that not all dual SIM phones are the same.

Some phones operate in Dual SIM Dual Standby (DSDS) mode, where the SIM cards are on standby waiting for a call or text message. However, when one is actively used, the other becomes inactive. Other phones operate in Dual SIM Dual Active (DSDA) mode, where both SIM cards are active at all times, which is suitable for the scenario described above. The caveat is that phones with this mode are more expensive, and running two active networks can drain the battery faster.

When traveling abroad, you can still use your SIM card to call, text and access the internet. Your mobile service provider likely has partners around the world that allow its users to connect to their network, so they always have coverage when traveling. This is called international roaming and the rates can be high. The cheapest option is to buy a local SIM card when you arrive at your destination and make it your SIM 2. This way you can take advantage of local data rates, which may be cheaper, without swapping out your original SIM card.

If you plan to visit several countries during your trip, you also have the option of obtaining an international SIM card. These can give you greater coverage since they are not limited to a single country. International SIM cards can be physical or eSIM: you just need to order the former in advance, while the eSIM can be downloaded and installed remotely.

Just make sure to unlock your phone before you leave if your phone carrier has it locked. If you don’t do this, it won’t work with foreign SIM cards. You don’t want to find out once you arrive in the other country. Your carrier can unlock the phone for free if it meets certain eligibility requirements. If you want to unlock the phone early, the carrier may charge you a fee. You can also unlock it using a third party, but that might cost more.

Sticking with a cell phone carrier you’re not happy with may be easier than going through the hassle of switching. But over time, facing hidden fees, extra services you didn’t request, price gouging, and even outright fraud can take an emotional and financial toll. Switching immediately can be jarring, given that you have to do things like tell everyone about your new number (you can port your old number to a new SIM card, but that also has its own hurdles), pay off your contract so the phone can be unlocked, and deal with the decision fatigue that comes with finding a new carrier.

Rather than immediately switching carriers and facing potential regrets, use your phone’s dual SIM feature to test the waters. Many mobile carriers offer a free trial period that you can take advantage of, making the process less expensive and much easier to cancel if the SIM card doesn’t meet your needs. For example, T-Mobile offers a free trial that gives you an eSIM and all the benefits the carrier offers, including high internet data speeds, for 30 days. That said, just be more careful around those phone carriers that users say you should avoid.