Key highlights

● eSIM technology eliminates the need for physical SIM cards, offering the ability to switch between plans and networks seamlessly without the physical limitations of traditional SIMs.

● eSIM benefits include the capacity for multiple profiles, allowing users to store up to five virtual SIM cards on one device, making it ideal for travellers and those needing to switch networks frequently.

● Enhanced device design and functionality with eSIMs, as the absence of a physical SIM card tray allows for a more compact device design, potentially larger battery life, and compatibility with modern smartwatches.

Decoding the Future of Connectivity: eSIM vs Physical SIM

Two primary technologies are powering most smartphones today: physical SIM and eSIM. You are most likely very familiar with physical SIM cards – since we’ve been using them for at least the last two decades.

The main function of a SIM card is to connect your account information (such as your phone number) to your wireless provider’s network, enabling you to make calls and stay connected. In this article, we’ll explore their similarities and differences to help you decide if it’s worth the switch.

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A Brief History of SIM Cards

Since its invention in 1991, the physical SIM card has dramatically shrunk in size and you’ve most likely come across the various versions, including Standard-SIM, Micro-SIM, and Nano-SIM.

Physical SIM Card Basics: What It Is & How It Works

Physical SIM cards slide into a tray in your phone and are generally locked into a single network. The function of SIM cards is fairly straightforward. The card possesses an International Mobile Subscriber Identifier (IMSI) that connects the hardware in your phone to the network and proves that you are indeed a subscriber (or customer) of the network.

What is eSIM? How It Works & Benefits

As SIM technology evolves, we now have the eSIM (embedded SIM), which works similarly to your traditional SIM card, minus the physical component. This means that you no longer have to deal with inserting a physical card into your phone, which could be lost, stolen, or damaged.

One of the single biggest advantages of the eSIM is that it can support multiple profiles, allowing you to easily change plans and switch operators depending on your unique situation.

Read more: What is an eSIM and is it for me?

Physical SIM vs eSIM

Both physical SIM and eSIM serve the same purpose and that is connecting you with the network you’re subscribed to as a customer. While eSIM typically beats a physical SIM when it comes to a direct comparison of features, let us take a look at their pros and cons below.

Physical SIM vs eSIM – Pros and Cons

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Tech Spotlight: Dual SIM and 5G

Wrapped up in this whole discussion of eSIMs and physical SIMs is the new dual SIM 5G technology. Simply put, Dual-SIM 5G is the ability to use two 5G SIMs in one phone, allowing you to connect to multiple 5G networks without physically changing your SIM card. While very few phones currently support this technology, it is definitely a feature to watch for.

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eSIM vs Physical SIM: Which Is Right for You?

Choosing between eSIMs and physical SIMs depends on your device compatibility, travel habits, and personal preferences.

While eSIMs offer flexibility, compactness, and enhanced security, many consumers are more familiar and comfortable with the traditional physical SIM cards, which are also supported by a broader range of phones. Some may also hesitate to transition to newer technology. 

Nonetheless, switching to a Circles.Life data plan is a breeze.

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eSIM FAQs: Your Top Questions Answered

Is eSIM better than a physical SIM?

It depends on your needs. eSIMs are more flexible and convenient, especially for switching between plans or using multiple profiles. Physical SIMs offer simplicity and are more widely supported, especially on older phones.

Which has better signal strength: eSIM or physical SIM?

There is no difference in signal strength between an eSIM and a physical SIM. Both connect to the same mobile network with equal quality, as long as your device supports the network’s bands.

Does eSIM drain more battery?

No. Battery usage depends more on your phone model, background apps, and signal strength than the type of SIM. eSIMs do not cause additional battery drain on their own.

Is eSIM available on all phones?

Not yet. eSIM is supported on most newer smartphones and wearables, including recent models from Apple, Samsung, Google, and Huawei. Check with your device manufacturer or telco for compatibility.

What happens if I lose my phone with an eSIM?

Losing a phone with an eSIM is like losing one with a physical SIM. However, since the eSIM is tied to your device, it cannot be removed and used elsewhere. You should immediately contact your provider to deactivate the profile remotely.

Is eSIM safe to use?

Yes. eSIMs are secure and less vulnerable to physical theft or SIM swapping. They rely on encrypted data and telco authentication to remain protected. Just remember to secure your phone with a lock screen and use two-factor authentication on your telco account.

Can I transfer my eSIM to a new phone?

Yes, but the process varies. Some providers allow eSIM transfer via QR code or app, while others may require you to contact customer service for reactivation on your new device.

Do I need internet access to activate an eSIM?

Yes. Internet access is required to download and activate your eSIM profile, either through Wi-Fi or mobile data. Once installed, it works like a regular SIM card.