eSIM is a digital SIM card built into a device that allows you to use the network without inserting a plastic carrier. We explain how a virtual SIM card works, which devices support eSIM technology, what are the applications of eSIM, and what benefits users gain from them.
Table of Contents
What is eSIM?
The name eSIM comes from the term embedded SIM, meaning “built-in SIM card.” Physically, it is a small electronic module permanently installed inside a phone, smartwatch, or tablet. The operator’s eSIM profile, which contains the data needed to connect the device to the mobile network, is stored on this chip. A QR code or an operator’s application is only used to download and activate this profile – they are not the card itself.
To use such a solution, you need a device that supports eSIM. If the phone does not have the appropriate module, this function cannot be activated with just a QR code. Such a digital SIM card therefore plays the same role as a regular SIM card, but it does not need to be physically inserted or replaced.
eSIM card vs. traditional SIM card
A physical SIM card must be inserted into the device, whereas a digital eSIM card is installed electronically. Thanks to this, changing a SIM card does not always require obtaining a new plastic carrier.
If a user wants to replace an eSIM card or transfer it to another device, the procedure depends on the operator. Transferring an eSIM card may require re-activating the profile.
Connectivity starts with a SIM card
Does the phone support eSIM?
To check, if a phone supports eSIM, you need to verify the specifications of the specific model. Devices supporting eSIM are found, among others, in the offerings of Apple, Samsung, Google, Xiaomi, Motorola, Honor, Oppo, realme, and OnePlus.
Not every model supports an eSIM card, so it’s also worth checking eSIM card compatibility with the operator’s offer.
How to activate eSIM?
eSIM activation begins with obtaining an operator profile. To activate the card, you can receive a QR code, use the operator’s application or a suitable function in your phone settings. Then, you need to go to SIM card settings, select the option Add eSIM and start the installation.
During eSIM card installation, the device downloads the eSIM profile containing the data needed to connect to the network. For this purpose, you can scan the eSIM QR code or use another method provided by the operator. After installing the eSIM profile and completing the activation, the activated eSIM card can be set as the main or secondary number. In many cases, quick eSIM activation is also possible without visiting a store.
How to use eSIM – features and capabilities
After activation, the eSIM card works similarly to a traditional SIM card. Users can make calls, send messages, and use mobile internet, and in SIM card settings, select which line should handle calls, SMS, or data transmission.
How to use eSIM when several profiles are saved on the phone? Depending on the device model, you can switch between numbers, set one as primary, and use the other, for example, for work or while traveling. Some phones allow using an eSIM card simultaneously with a traditional SIM card, although this depends on the device model and operator. Thanks to this, the virtual card can operate alongside the physical SIM card.
eSIM Pros and Cons
What are the advantages of eSIM? First and foremost, convenient activation, no plastic carrier, and the ability to use additional numbers or data plans. The advantages of eSIM cards will be especially appreciated by people who use two numbers or travel frequently.
What are the disadvantages of eSIM? Not every phone supports an eSIM card, and transferring the profile to a new device may require additional steps. The disadvantages of an eSIM card therefore include dependence on device compatibility and operator procedures. Also important is eSIM security – the profile is stored digitally, so you need to protect your phone, operator account, and the data required for activation.
New brand. New possibilities. Titmo
Smartwatch with eSIM – when does such a solution make sense?
eSIM is primarily associated with smartphones, but the technology is also used in other devices. A good example is a smartwatch with eSIM, which, after activating the appropriate operator service, can connect to the cellular network independently of the phone.
If the watch and the operator support the eSIM function, the user can use supported calls, messages, or data transmission without a constant Bluetooth connection to a smartphone. Such a solution works well, for example, during training or going out without a phone. Before purchasing, however, it is worth checking for eSIM support in a specific model and the availability of the appropriate service from the operator.
What are the advantages and disadvantages of eSIM?
What are the advantages of eSIM? Primarily, convenient activation, no physical carrier, and the ability to use additional numbers or data plans. The advantages of eSIM cards will be especially appreciated by people using two numbers or traveling frequently.
What are the disadvantages of eSIM? Not every phone supports an eSIM card, and transferring the profile to a new device may require additional steps. Thus, the disadvantages of an eSIM card include dependence on device compatibility and operator procedures. Also important is eSIM security – the profile is stored digitally, so you should protect your phone, operator account, and data required for activation.
How much does eSIM cost and does it work abroad?
The cost of eSIM depends on the operator and the chosen offer. In some cases, issuing the profile is free, while in others, the operator may charge a fee for its activation, re-issuance, or transfer to a new device. If you are wondering what the costs of eSIM are, it’s worth checking not only the price of the service itself but also the terms of the subscription or data package.
eSIM can also work abroad. You can use roaming within your current offer, or activate an additional plan designed for travel. Thanks to this, a virtual card can be used, for example, for data transmission in a selected country without the need to replace a physical SIM card.
Stay up to date with mobile technologies
The mobile device market is changing rapidly, which is why in B2B sales it’s important to know about new solutions and understand how they impact user needs. At Partner Tele.com, we track technological developments to support our clients not only with a wide range of GSM accessories, but also with practical industry knowledge.
In our wholesale store, you will find, among other things, traditional SIM cards, cases, protective glass, chargers, cables, power banks, holders, headphones, and equipment for GSM stores and service centers. Regularly check our blog to learn about new technologies, trends, and solutions that help better meet customer expectations and develop your offering in line with industry changes.
