What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Yes. A compatible phone can connect to a mobile network with an eSIM profile even when no physical SIM card is inserted. An eSIM is a digital SIM built into the device, but two other conditions still apply: the exact device and regional model must support eSIM, and the carrier must offer eSIM activation for that device, country and plan.
Activation is normally digital. Your provider may push the profile automatically, let you transfer service from another phone, give you a QR code, send you through its app, or provide manual details. Have Wi-Fi or a hotspot available unless the device and provider explicitly document an exception.
What does it mean to use an eSIM without a physical SIM?
An eSIM is a programmable SIM built into a phone, tablet or other cellular device. Instead of inserting a removable card, you download a carrier profile to the embedded hardware and the device uses that profile to authenticate on the mobile network. The phone does not need a card in its SIM tray for the eSIM line to work.
The word “eSIM” describes the SIM technology, not a particular plan. Your carrier still has to create or transfer service and provision the profile. Removing a physical SIM therefore does not create service by itself; it only removes one possible way of identifying the device to the network.
#1 Best Overall
- Charger NOT Included, 6.7" Super AMOLED FHD+, 90Hz Refresh Rate, 385 ppi, 800 nits (HBM), 1080x2340px, 5000mAh Battery
- 128GB, 4GB RAM, microSDXC, Exynos 1330 (5nm), Octa-Core, Mali-G68 MP2 or Mali-G57 MC2 GPU
- Rear Camera: 50MP, f/1.8 (wide) + 5MP, f/2.2 (ultrawide) + 2MP, f/2.4 (macro), LED flash, panorama, HDR; Front Camera: 13MP, f/2.0, Android 14, up to 6 major Android upgrades, One UI 6.1
- 3G: HSDPA 850/900/1700(AWS)/1900/2100; 4G LTE: 1/2/3/4/5/7/12/13/14/20/25/26/28/29/30/38/39/40/41/48/66/71, 5G: 2/5/25/41/66/71/77/78 SA/NSA/Sub6/mmWave - Nano-SIM + eSIM
- US Model – Global Connectivity – Compatible with Most GSM Carriers like T-Mobile, AT&T, MetroPCS, etc. Will Also work with CDMA Carriers Such as Verizon, Straight Talk.
| Characteristic | eSIM | Physical SIM |
|---|---|---|
| Hardware | Chip built into the device | Removable plastic card |
| Installation | Digital download or transfer | Insert the correctly sized card |
| Card required in tray | No | Yes |
| Carrier support | Required for the device, market and plan | Required for the card and plan |
| Typical setup connection | Internet connection commonly needed | Usually works after insertion and network registration |
| Moving service to another phone | Use a supported transfer or obtain a new activation | Move the card if the new phone accepts it |
Apple describes an eSIM as a digital SIM with no card required. Samsung similarly describes Galaxy eSIM as mobile service without a physical card. Those statements describe the technology; they do not guarantee that every model or carrier supports it.
What must be compatible before you activate an eSIM?
Both ends of the connection must qualify: the exact device must contain eSIM hardware, and the intended carrier must support eSIM for that device, regional variant and plan. A phone family can contain models with different capabilities in different countries, so a brand name alone is not enough.
Check the exact model and regional version
Find the model number in the device settings or on its documentation, then compare it with the manufacturer’s current eSIM list for your country. Do not assume that an eSIM-enabled version sold in one market has the same feature in another. Carrier firmware, regulatory versions and local sales bundles can change availability.
Confirm the carrier and plan
Ask the carrier whether it can activate your exact model by eSIM in your country and on the specific plan you want. Carrier directories are organized by country or region and activation type because support is not universal. A carrier may support eSIM for postpaid service but not a particular prepaid plan, or may support only selected devices.
Use an EID check only in the context where it applies
An EID is the identifier associated with an eSIM-capable device. AT&T Prepaid’s instructions use the presence of an EID as an eligibility check for that service and say a device without one needs a physical SIM for its prepaid process. That is a carrier-specific rule, not a universal test for every network; still confirm compatibility with your intended provider.
Rank #2
- Vivid Large Screen & All-Day Battery - Features a 6.56" HD+ display for clear viewing and a robust 4000mAh battery that lasts. With an IP52 rating, it resists spills and dust, built for daily life.
- Easy eSIM Activation & Carrier Compatibility - Get connected faster with eSIM. No physical SIM card slot. Pre-configured and fully compatible with AT&T, T-Mobile, and Verizon ( not included their MVNOs).
- Clear Cameras & Practical Features - Capture life's moments with a 13MP rear AF camera and dual LED flash. The 5MP front camera is perfect for video calls. GPS and multiple sensors make it a capable daily driver.
- Clean Android Experience & Smooth Performance - Runs the latest Android 13 for a simple, intuitive experience. With 3GB RAM and 32GB storage, it handles everyday apps and tasks smoothly.
- Fast Charging & Modern Connectivity - Supports 18W fast charging to power up quickly. Equipped with USB Type-C, Dual-Band Wi-Fi, and Bluetooth for all your connection needs.
Check whether the phone is carrier-unlocked
If you plan to install an eSIM from a different provider, the phone may need to be unlocked. On an iPhone, Apple’s documented check is Settings > General > About > Network Provider Lock; “No SIM Restrictions” indicates an unlocked phone in that guidance. Other manufacturers and carriers use different labels and policies.
- Record the exact model number and country or regional version.
- Confirm that the device has an EID or another manufacturer-listed eSIM indicator.
- Ask the carrier about eSIM support for the exact model and plan.
- Check lock status before buying a different carrier’s travel or local plan.
How do you activate an eSIM with no physical SIM?
Follow the route your provider supports. Keep the activation email, QR code, confirmation code or account credentials available, and connect the phone to Wi-Fi or a hotspot before starting unless the provider documents an exception.
- Back up and update the device. Install the current system update that your manufacturer and carrier recommend. Keep the phone charged and connected to a reliable internet source.
- Open the cellular setup screen. On an iPhone, this is reached through the cellular or mobile-data settings; on a Galaxy device, use the SIM or mobile-network manager. Labels differ by model and software version.
- Choose the provider’s activation method. The available button may be labeled carrier activation, add eSIM, transfer from another phone, scan QR code, or enter details manually.
- Complete account verification. The carrier may request a login, one-time confirmation code, identity check or account PIN. Use only the details supplied through the carrier’s official channel.
- Download the profile. Scan the QR code, open the carrier’s activation link or app, or enter the SM-DP+ address and activation code if manual entry is offered. The phone contacts the provider and installs the profile.
- Assign line settings. If the phone has more than one line, select which number handles calls, messages and mobile data. Read the roaming prompt carefully before accepting it.
- Test service. Turn off Wi-Fi briefly and check cellular data, place a call if voice service is included, and send a text if SMS is part of the plan.
- Keep the confirmation details. Save the provider’s instructions and any recovery information. A replacement phone may require a new transfer or profile download.
Which activation methods are available?
| Method | What you need | Important limitation |
|---|---|---|
| Carrier activation | An eligible account and an internet connection | The carrier must push the profile to your device and plan. |
| Transfer from another phone | Both devices nearby and a provider-supported transfer flow | Support varies by model, operating system, carrier and region. |
| QR code | The carrier’s current QR code and the phone’s camera or eSIM setup screen | A code is provider-specific; do not reuse a code intended for another line. |
| Carrier app or link | The provider’s app, account access and internet | The app route may be limited to certain plans or countries. |
| Manual entry | SM-DP+ address, activation code and any confirmation code | One mistyped character can prevent installation; copy the values exactly. |
Do you need Wi-Fi to set up an eSIM?
Usually, you should plan on using Wi-Fi or a hotspot. The device needs an internet path to contact the carrier and download the eSIM profile, and Apple instructs users setting up a supported iPhone to connect to Wi-Fi or a hotspot.
Wi-Fi is not an absolute rule for every device. Apple notes that some eSIM-only iPhone models in some countries or regions can activate without Wi-Fi. Because that exception depends on the model, market and activation state, follow the on-screen instructions and your carrier’s requirements rather than assuming cellular data will work before the profile is installed.
If you are replacing a physical SIM while traveling, arrange internet access before removing the old line. A second phone’s hotspot, hotel Wi-Fi or an airport connection can provide the temporary connection, but avoid unsecured networks when entering account credentials.
Rank #3
- 4G Full Network Compatibility & Powerful Performance: Equipped with MTK6739 chipset and 4GB RAM + 32GB ROM, the T26Ultra supports 4G FDD/TDD, 3G WCDMA and 2G GSM networks,Stay connected worldwide—use dual SIM to separate work/personal lines.GSM Unlocked: Enjoy seamless connectivity with your preferred GSM carrier. Compatible with T-Mobile, Metro PCS, AT&T, Cricket, Mint Mobile and other GSM networks. SIM card not included. For network compatibility, please check with your carrier. Note: Not compatible with CDMA networks like Verizon.
- 6.6" Incell HD Display & Dual Camera: 6.6-inch Incell HD screen delivers clear visuals for streaming and browsing. 13MP front + 16MP rear dual cameras capture crisp selfies and vivid daily photos, easily preserving your precious moments.
- Large Storage & Triple Card Tray: 32GB internal storage, expandable up to 256GB via microSD card (not included). Triple card tray supports 2 Nano SIM cards + 1 memory card simultaneously, realizing dual SIM standby and flexible storage expansion.
- Long-Lasting Battery & Convenient Features: 5000mAh large-capacity battery supports all-day use without frequent charging. Type-C charging port for fast and stable charging; supports Face Unlock for quick and secure access, plus OTG function for easy connection to external devices.
- Complete Package & User-Friendly: The package includes smartphone, charger, Type-C cable, earphone, screen protector, phone case, SIM card ejector pin, English manual and OTG adapter. Ready to use right out of the box, perfect for daily use and travel.
Can you transfer an existing line to eSIM?
Often, yes, when the carrier and both devices support a transfer. The transfer process moves or reprovisions the carrier service; it is not the same as simply copying a file. Some providers require the old phone to be nearby, signed in and connected, while others issue a new QR code or require account verification.
Free tools Windows power users keep installed
One-click scans. No signup required.
Do not erase the old device or remove its working SIM until the new profile has installed and service has been tested, unless the carrier specifically tells you to do so. If the transfer fails, the carrier may need to cancel the pending profile and issue another activation.
Can you use a travel eSIM without a physical SIM?
Yes, provided the phone supports eSIM, the travel provider covers your destination and the device is unlocked when a different carrier is being used. Apple documents local and worldwide travel eSIM options, but each plan sets its own countries, validity period and included services.
Check these terms before buying
| Plan detail | Question to answer |
|---|---|
| Country coverage | Does the plan include every country or territory on the itinerary? |
| Data allowance | Is data limited, throttled after a threshold or unlimited for a stated period? |
| Voice and SMS | Are calls and text messages included, or is the plan data-only? |
| Validity | When does the term start, and how many days does it last? |
| Activation timing | Does validity begin at installation, first network connection or another event? |
| Hotspot use | Does the provider allow tethering, and are there limits? |
| Identity requirements | Is passport or other identification needed before installation? |
| Unlock requirement | Will the phone accept a profile from this provider? |
Install the travel profile while you have reliable internet, but read the provider’s activation rule first so you do not start a short validity period earlier than intended. Keep your home line available for account recovery if needed, and manage roaming settings according to your home carrier’s terms.
Can you keep your normal number while using a travel eSIM?
Some supported iPhone models can keep two eSIMs active at once, allowing a home line and a travel line. This behavior is not universal across phones, carriers or plans, so verify the model’s dual-SIM capability before departure.
Rank #4
- Please note, this device does not support E-SIM; This 4G model is compatible with all GSM networks worldwide outside of the U.S. In the US, ONLY compatible with T-Mobile and their MVNO's (Metro and Standup). It will NOT work with Verizon, Spectrum, AT&T, Total Wireless, other CDMA carriers, it is also not compatible with their MVNO (Visible, Xfinity Mobile, US Mobile, Cricket Wireless, etc).
- Compatibility with certain third-party devices and accessibility accessories, including some hearing aids, may vary depending on manufacturer support, Bluetooth protocols, software compatibility, and regional firmware limitations. For additional hearing aid compatibility information, please refer to Samsung’s official support documentation.
- 4G LTE Bands: B1/B3/B5/B7/B8/B20/B28/B38/B40/B41
- Display: Super AMOLED, 90Hz, 800 nits (HBM) | 6.7 inches, 110.2 cm2 (~86.0% screen-to-body ratio) | 1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
- Camera: 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 2 MP, f/2.4, (macro)
Choose the travel line for mobile data and decide whether the home line should remain enabled for calls and messages. Leaving the home line active can create roaming charges under your home carrier’s rules; disabling it can prevent those charges but may also stop incoming calls or texts to that number.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should you do if eSIM activation fails?
The phone cannot find an eSIM option
Recheck the exact model and regional version. If there is no eSIM menu or EID, contact the manufacturer and carrier; do not infer compatibility from another phone in the same product family.
The QR code or app reports an error
Confirm that the code belongs to your line, that the phone is unlocked when required, and that you have a stable internet connection. If the code was already used or the carrier account is not eligible, request a fresh activation from the provider rather than repeatedly scanning it.
The profile installs but there is no service
Restart the device, verify that the new line is enabled for cellular data and check whether the plan covers your location. For travel service, confirm country coverage and that the provider’s activation instructions were completed. The carrier may need to finish provisioning on its side.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Calls or texts do not work
Check the plan terms: a travel eSIM may provide data without voice or SMS, while a domestic plan may require separate voice and messaging provisioning. If those services are included, ask the carrier to verify the line configuration and your account’s verification status.
Best Value
- NEW built-in stylus. Jot notes, edit photos, sketch artwork, and navigate effortlessly with an improved stylus and updated software.
- 6.7" pOLED display and Dolby Atmos. Experience cinema-quality entertainment with over a billion shades of color and multidimensional sound*.
- 50MP Ultra Pixel camera + OIS. Capture sharper low-light photos and smoother videos with an unshakable camera system featuring Optical Image Stabilization.
- 30W TurboPower charging + over a day battery. Get hours of power in just minutes of charging, then work and play with unbelievable battery life**.
- Standout design. Make a statement with its stunning look, modern color, and soft, vegan leather finish.
You deleted the profile by mistake
Do not assume the same QR code can be reused. Contact the provider for its recovery or reissue procedure; some carriers require a new code or identity check before reinstalling service.
Is an eSIM better than a physical SIM?
Neither format is universally better. An eSIM is convenient when you want digital activation, a second line or travel service without swapping cards. A physical SIM can be simpler when you frequently move service between phones or use a device and carrier that do not support eSIM.
- Choose eSIM when your exact device and plan support it, you have dependable internet for activation and you value digital transfers or multiple lines.
- Choose a physical SIM when the carrier does not offer eSIM for your plan, you need rapid card-based switching between compatible phones or you are troubleshooting without internet access.
- Use both when the device supports dual SIM and you need a home number plus a separate travel or work line.
Carrier policies, device software and regional availability change. Treat the manufacturer and intended carrier as the final authority for your exact combination rather than relying on a generic compatibility list.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteWhat is the practical checklist before removing your physical SIM?
- Write down the exact device model, regional version and current software version.
- Locate the EID or confirm eSIM support in the manufacturer’s documentation.
- Ask the carrier to confirm eSIM activation for that model, country and plan.
- Check the phone’s lock status if the eSIM comes from another provider.
- Obtain the correct activation route, QR code, app link or manual credentials.
- Secure Wi-Fi or a hotspot and keep the phone charged.
- Install the profile, assign data and voice defaults, then test service.
- Only after testing, remove or disable the old physical SIM if you no longer need it.
Frequently Asked Questions
Can I keep my phone number when changing from a physical SIM to an eSIM?
Usually the number stays with your carrier account, but the carrier must convert or transfer the line to the new eSIM profile. Ask the provider to confirm the number-preservation process before deleting the old SIM or closing the old device session.
Do all eSIM plans include calls and text messages?
No. A plan can include data only, or data plus voice and SMS, depending on the provider and destination. Check the plan’s service description before assuming that a data connection also supplies a phone number.
Can I activate an eSIM on a phone that is locked to another carrier?
A locked phone may reject a profile from a different provider. Check the carrier-lock status and request an unlock from the original carrier when eligible before purchasing a separate local or travel plan.
What information should I save in case I replace my phone?
Keep your carrier account access, the line’s confirmation details and the provider’s instructions for transfer or reissue. A new phone may require a fresh activation even when the old eSIM line was working normally.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
