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Are you preparing for a trip and wondering whether to choose an eSIM or a Physical SIM? Each SIM has its advantages and disadvantages, affecting your connectivity experience when traveling abroad. To ensure a smooth trip, let's explore eSIM vs Physical SIM with Way2go and find out which option is the best for your travels, as shown in the article below.
What is physical SIM and eSIM?
eSIM vs physical SIM are two types of SIM cards used to connect mobile devices to a network, which you will choose when traveling abroad:
A Physical SIM is a small card that contains essential information to connect a mobile device to a cellular network. It allows users to make calls, send messages, and use data services. A Physical SIM consists of an integrated circuit, usually encased in plastic, and contains important information such as:
ICCID (International Circuit Card ID)
IMSI (International Mobile Subscriber Identity)
Connection to a mobile network
How it works: When a user inserts the SIM into their device, it interacts with the mobile network via radio waves. The device sends and receives information from the network to perform functions such as calling, texting, and accessing the internet.
Types of physical SIMs:
Mini SIM: Measures 25mm x 15mm, commonly used in the past.
Micro SIM: Measures 15mm x 12mm, smaller than a Mini SIM, often used in newer mobile devices.
Nano SIM: Measures 12.3mm x 8.8mm, the smallest SIM type available today, used in many modern smartphones.
An eSIM (Embedded SIM) is a SIM that is built into the device, eliminating the need for a physical card. It allows users to activate mobile services without using a physical SIM card. While eSIM functions similarly to a Physical SIM, the key difference is that it can be remotely reprogrammed.
When users want to switch service providers, they can simply download a new configuration from the network provider without replacing the SIM. This reduces device size and enhances flexibility. Additionally, eSIMs can store multiple network profiles, making it easy to switch between carriers without changing SIM cards.
How to use an eSIM: Users scan a QR code or enter configuration details from their network provider. The device will automatically connect to the new network without requiring a physical SIM card replacement.
Below are the key differences between the two types of SIMs, helping you better understand their advantages and disadvantages to choose the one that best suits your needs:
| Criteria | eSIM | Physical SIM |
| Size |
Compact, integrated into the device, takes up no space |
Small card format, requires a SIM slot |
| Flexibility |
Easily switch carriers without changing the SIM |
Must remove and insert a new SIM to switch carriers |
| Usage Capability |
Supports multiple mobile network profiles on one device |
Can only use one carrier per SIM |
| Security |
Difficult to steal or lose, cannot be removed |
Easily lost or stolen, can be illegally swapped |
| Compatibility |
Only supported on devices with eSIM technology |
Works on most mobile devices |
| Carrier Switching |
Allows easy carrier switching without replacing the SIM |
Requires a new SIM card to change carriers |
| Device Switching |
Requires a transfer process via the carrier, may take time |
Easily removable for quick switching between devices |
| Activation |
Scan a QR code or enter a code provided by the carrier |
Insert the SIM into the device and use immediately |
| Travel Convenience |
Easy to purchase an international eSIM without replacing the SIM |
Must buy and insert a new SIM when arriving in another country |
| Durability |
Not prone to damage as it has no physical parts |
Can break, scratch, or get damaged |
| Cost |
Can be more expensive depending on the carrier |
Usually cheaper and easier to buy |
Both eSIM vs physical SIMs play an important role in connecting mobile devices to networks. However, eSIMs offer more convenience, especially in managing and changing mobile services.
Below are the advantages and disadvantages of each type, helping you easily choose the right SIM for your needs when traveling abroad:
| Pros | Cons |
|
Widely available & easy to use: Physical SIMs are supported by most carriers worldwide. Easily replaceable: If you need to change SIMs, simply buy a new card and insert it into your phone. No special device support needed: Most phones, including older models, have a physical SIM slot. Supports various devices: Physical SIMs can be used not only in smartphones but also in tablets, smartwatches, 4G USB modems, and mobile routers. |
Bulky & easy to lose: Physical SIMs are small and can be lost or damaged. Limited SIM slots: Some phones only have 1 or 2 SIM slots, restricting the ability to use multiple numbers. Inconvenient for carrier switching: To switch carriers, you must manually replace the SIM. Prone to damage or loose connection: SIMs may wear out over time due to long-term use or frequent swapping. |
| Pros | Cons |
|
Compact and convenient: eSIMs are embedded in the device, eliminating the need for a SIM slot and enabling slimmer phone designs. Easy carrier switching: Simply scan a QR code or enter an activation code to change carriers without buying a new SIM. Store multiple numbers on one device: eSIMs allow multiple network profiles, making it easy to switch between phone numbers. High security: Since it cannot be removed, eSIMs help prevent SIM loss if your phone is stolen. Water-resistant and more durable: Without a physical SIM slot, the risk of damage from water or dust is reduced. |
Not all devices support it: Currently, eSIM is only available on certain high-end smartphones, tablets, and smartwatches. Not widely available in some countries: Not all carriers support eSIM, especially in rural areas or developing nations. Difficult to transfer between devices: If you switch phones, you must contact the carrier to reissue an eSIM, whereas a physical SIM can simply be removed and inserted into a new device. Requires an internet connection for activation: Setting up a new eSIM requires internet access to download carrier configurations. |
If you prioritize convenience and security, eSIM is the better choice. However, if you want easier device switching and greater compatibility, a physical SIM remains a practical option.
Switching from a physical SIM to an eSIM allows you to use a network without needing to insert or remove a SIM card. The process may vary depending on the carrier, but it typically involves the following steps:
Step 1: Check if your device supports eSIM
iPhone: Go to Settings → Cellular → Add eSIM. If this option is available, your device supports eSIM.
Android: Go to Settings → Connections → SIM Manager, and check if there is an Add eSIM option.
Visit your carrier’s website or contact customer service to confirm eSIM support for your device.
Step 2: Contact your carrier to request a SIM-to-eSIM transfer
You can initiate the switch through one of the following methods:
Online: Some carriers allow SIM-to-eSIM transfers via their official app or website.
In-store: Visit a carrier store with your ID and phone for assistance.
Customer service hotline: Call your carrier’s customer support for guidance on switching to eSIM.
Step 3: Receive your eSIM QR code or activation code
After successfully registering for the switch, your carrier will provide a QR code or an activation code via email, SMS, or a printed document at their store. Keep this information for the next setup step.
Step 4: Install eSIM on your Phone
On iPhone: Go to Settings → Cellular → Add eSIM, select Use QR Code, and scan the provided QR code. Follow the on-screen instructions to complete the installation.
On Android: Go to Settings → Connections → SIM Manager → Add eSIM, then choose Scan QR Code or enter the activation code manually. Follow the prompts to complete the setup.
Step 5: Verify and activate eSIM
After installation, test your eSIM connection by toggling Airplane Mode on and off, making a call, sending a message, or using mobile data. If the eSIM works properly, you can remove the physical SIM from your device if desired.
To easily get a SIM card that suits your needs, you can buy it directly from Way2go. We offer both physical SIM vs eSIM, which can be used in multiple countries.
Step 1: Purchase a physical SIM
Visit the website or store: You can buy a physical SIM at a Way2go store or through their official website.
Choose a service plan: Select a plan that matches your usage needs. Way2go usually offers various options with different benefits.
Provide your Information: If purchasing online, you will need to provide personal details such as your name, address, and phone number for registration.
Step 2: Receive your physical SIM
In-store pickup: If purchased at a store, the staff will hand you the SIM immediately.
Home delivery: If ordered online, the SIM will be shipped to the address you provided.
Step 3: Activate the physical SIM
Insert the SIM into your phone: Remove the SIM tray and insert the physical SIM into your device.
Restart your device: Turn your phone back on after inserting the SIM. The device will automatically detect the SIM.
Activate the service: Make a call or send a message to activate the service. If required, follow the instructions provided with the SIM to complete activation.
Step 1: Purchase eSIM online
Visit the official Way2go website at: https:/way2go.vn to choose and purchase a suitable eSIM plan. When buying online, you may receive a 10% discount.
Step 2: Receive your eSIM QR code
After completing the payment, you will receive an eSIM QR code via email. This code contains the necessary information to activate your eSIM on your device.
Step 3: Activate eSIM on your device
Open your phone’s Settings, go to SIM management, scan the received eSIM QR code, and follow the on-screen instructions to complete the setup.
Note: Ensure your device is connected to the internet during the activation process.
Frequently asked questions about eSIM vs physical SIM
1. Can we use physical SIM and eSIM of same number?
The ability to use the same phone number on both a physical SIM and an eSIM depends on each carrier's policies. Some carriers support features like "Dual SIM, One Number" or "Multi-SIM," allowing a single phone number to function on both a physical SIM and an eSIM simultaneously.
No, an eSIM is tied to one device at a time. Unlike a physical SIM, it can't be moved between devices. However, some carriers offer "Multi-SIM" or "Number Sharing" to use the same number on multiple devices.
It depends on your carrier. Some allow re-downloading via QR code, while others require deactivation first. If not supported, you may need a new eSIM, possibly with fees. Check with your carrier before switching.
Or can you have eSIM and physical SIM on the same phone? Most eSIM-supported phones allow using eSIM and physical SIM together in Dual SIM Dual Standby (DSDS) mode. iPhones from the iPhone XS onward and flagship Android devices like the Samsung Galaxy S21, S22, and Google Pixel support this feature.
Whether you choose physical SIM or eSIM for travel, you should consider convenience, cost, and usability at your destination. eSIM offers flexibility and easy activation without needing to swap cards, while Physical SIM is more widely available and easier to purchase. And don’t forget to buy physical SIM vs eSIM from Way2go to save money and get the best product!
📞 Contact and buy Way2go Travel SIM Today!
Website: https://way2go.vn
Hotline: 090.222.7715
Email: [email protected]
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