Samsung Galaxy S20 8GB RAM eSIM: compatibility and setup

Does the Samsung Galaxy S20 8GB RAM support eSIM?

The Galaxy S20 family supports eSIM, but the words “8GB RAM” alone cannot confirm that a particular handset has eSIM enabled. Samsung’s UK support page, “What SIM cards can I use with my S20?”, lists eSIM as supported for the S20 and S20 5G. Samsung’s Galaxy S20 launch specifications also identify an LTE configuration with 8GB RAM and say eSIM availability may vary by country and carrier. Samsung’s current India support list, updated February 18, 2026, continues to include Galaxy S20 models among eSIM-capable devices. Those statements establish support for the product family in relevant markets; they do not certify every retail unit, import, carrier edition, or software build bearing the Galaxy S20 name.

Treat your phone as compatible only after checking the handset itself. Confirm its full model number and original sales market, look for an EID, and check whether Settings offers Add eSIM. If the EID and menu are absent, do not assume that an update, an eSIM QR code, or the phone’s 8GB RAM specification will make eSIM work. Ask Samsung or the seller to confirm the exact model and its software configuration before buying a plan.

The RAM figure identifies a memory configuration, not the radio or eSIM configuration. Samsung’s 2020 UK launch table lists the Galaxy S20 LTE model with 8GB RAM and the 5G model with 12GB RAM. Availability differed across markets, and later listings can use different naming conventions. That is why this guide keeps the exact name Samsung Galaxy S20 8GB RAM while asking you to verify the model number on the device instead of inferring its capabilities from memory or a shop title.

Why region and carrier matter

Samsung sells phones under a shared family name across multiple countries. Model codes, supported radio bands, SIM trays, firmware and carrier customisations can differ. Even when a hardware platform supports eSIM, a regional software configuration or carrier edition may omit the controls needed to add a profile. A phone sold where eSIM is enabled may show the controls after an official software update.

The Galaxy S20 name covers multiple cellular configurations. The base S20 was sold in LTE and 5G forms, and “8GB RAM” does not identify the exact model code or carrier status. Do not treat the separate Galaxy S20 FE as the same device; it has separate specifications and support documentation. This guide concerns Samsung Galaxy S20 8GB RAM.

Samsung’s official pages show why the answer needs a qualification: its UK S20 support table lists eSIM, while launch information says availability may depend on country and carrier. Samsung also notes that settings vary by model, software version and provider. These are real compatibility variables; they do not mean every country has the same feature set or that a travel plan can use every local network.

Check two things separately: device capability (EID and Add eSIM in the current software) and service compatibility (whether the plan provider can activate the profile and whether its plan supports your destination). An unlocked phone may be required. For a used or imported handset, ask the seller where it was sold, whether it is carrier-locked, and whether eSIM has been tested on its installed software.

Check the exact phone before you buy

Use the phone in your hand if possible. Menu names may move slightly between Android and One UI versions, so use Settings search if the path below differs.

1. Read the full model number

Open Settings > About phone and note the model name and model number. Compare it with the receipt or box and Samsung support information for the original sales market. The model code is more useful than the RAM label because it distinguishes regional and carrier variants. Ask for it before paying if a listing omits it.

2. Look for the EID

Samsung’s eSIM instructions say the EID can be found on the box or at Settings > About phone > Status. On some software versions, open Status information first. If you still cannot find it, search Settings for “EID” or ask Samsung support to confirm the path for your model and software.

An EID is a strong indication that the phone has an eSIM identity provisioned. Its absence is a reason to pause and check further, not a prompt to install an unofficial firmware package. Check that you are looking at the correct device’s box, and confirm that the software is current for your region. A missing EID together with a missing Add eSIM control is a warning that this particular phone may not be configured for eSIM.

3. Check SIM Manager

Open Settings > Connections > SIM manager and look for Add eSIM. If the path differs, search Settings for “SIM manager” or “eSIM.” An existing profile may appear in the SIM list; do not delete one you need. A visible menu is useful evidence, but the provider must still support your plan and activation method. If it is disabled or absent, check with Samsung or the carrier rather than resetting the phone.

Compatibility checklist

Before purchasing a travel plan, confirm each point:

• [ ] The full model number is known and the device is not a different S20-family model.
• [ ] An EID appears in the phone’s status information or Samsung confirms that the exact model supports eSIM.
• [ ] SIM Manager contains Add eSIM on the current software version.
• [ ] The phone is unlocked for use with another provider, if the plan requires it.
• [ ] The provider confirms that its plan’s installation method works with this Galaxy S20 configuration.
• [ ] The destination and the plan’s terms match your itinerary and data needs.
• [ ] You have Wi‑Fi or another internet connection available for installation, plus access to the QR code or activation details.

Check your device before choosing a plan. If one of the device-level checks fails, resolve compatibility with Samsung, the carrier or the seller first. Do not purchase on the assumption that a plan’s QR code can enable eSIM hardware or regional software support.

Add and activate an eSIM

Samsung’s Galaxy instructions describe adding a mobile plan by scanning a provider’s QR code, using a pre-assigned plan, or entering activation details manually. The names and order of screens may differ on the Galaxy S20 according to the One UI version and provider. Use the installation details supplied for your specific plan; never scan a QR code found in an unrelated guide.

Before you start

1. Confirm EID and Add eSIM as described above.
2. Update Android and One UI through Settings > Software update, using the official update offered for your region. Restart if an update requests it.
3. Connect to reliable Wi‑Fi. Keep the phone charged and have the eSIM QR code or manual activation details ready on another screen or printed page.
4. Read the plan’s instructions to understand when its validity begins, whether it activates on installation or first network connection, and whether it must be installed before travel.
5. Keep the QR code and activation details private. Many codes can be used only once or on one device. Do not delete an installed profile unless the provider confirms that it can be downloaded again.

Typical Samsung setup

1. Open Settings > Connections > SIM manager.
2. Tap Add eSIM. If the provider has pre-assigned a plan, follow the displayed prompts to download it. This option is only available with providers that support it.
3. To scan a QR code, choose the QR-code option and scan the code supplied for your plan. If the QR code is on this phone, open it on a second screen or use the manual method when the provider offers one.
4. If prompted, enter the activation code or other details exactly as provided. Do not add spaces or change characters unless the instructions say to.
5. Wait for the profile to download. Follow any on-screen confirmation, then check that the new plan appears in SIM Manager. Restart only if the phone or provider instructs you to do so.
6. Give the line a clear label such as “Travel data.” Keep your home SIM enabled for calls or texts if you need it, while selecting the travel eSIM for mobile data when appropriate.
7. Before departure, confirm with the provider whether to leave the travel line off until arrival or enable it earlier. Set data roaming for that eSIM only when the plan’s instructions require it.

Installation and activation are not always the same event. A profile may download before its data allowance or validity period starts; another plan may begin when first connected to a supported network. Follow the terms displayed when you select the plan and its activation instructions. Do not assume that installing the eSIM starts—or does not start—the validity clock.

For the general device-specific steps, see the Android eSIM installation instructions and iPhone eSIM installation instructions. The iPhone guide is included for households managing more than one device; it does not apply to the Samsung Galaxy S20. If the menus on your phone differ, follow Samsung’s instructions for your regional model and the activation guidance supplied with your plan.

Use the travel eSIM for mobile data

Once the profile is installed, set the eSIM as the mobile-data line when you are ready to use it. On Samsung, open Settings > Connections > SIM manager, select the preferred SIM for Mobile data, and make sure the travel eSIM is switched on. Menu labels can vary. If the plan requires data roaming, enable roaming for the travel line only after checking its terms. Roaming on your home SIM can create charges under your regular carrier plan, so review that line’s settings separately.

A travel data eSIM can be useful when you want mobile data for maps, transport updates, messaging apps, translation, hotel details or work tools. It does not automatically replace your primary phone number. Many travel plans provide data only; ordinary voice calls and SMS may remain on your home SIM or may not be included. Check the plan description before relying on it for calls, verification texts or emergency contact arrangements.

Example: install at home, use after landing

If the provider permits advance installation, download the profile at home over Wi‑Fi and label it clearly. Keep it switched off until the provider’s instructions say to activate it, if that is how the plan works. At your destination, turn on the travel line, select it for mobile data and check the plan’s roaming setting. Confirm that the phone registers on a supported network before relying on navigation or ride-hailing.

Example: keep your home number available

You may be able to keep a physical home SIM active for calls and texts while the eSIM handles data. Samsung’s UK support page describes eSIM alongside physical SIM configurations for S20 devices and notes that only two SIMs can operate at once; the exact tray configuration depends on the model. Choose which line handles calls, messages and data in SIM Manager, and check with your home carrier about roaming charges. If two physical SIMs are already active, you may need to disable one before using the eSIM.

Example: multi-country itinerary

For a trip across borders, check whether the selected plan covers every country on your route or only one destination. Coverage and provider availability are plan-specific. A regional plan may be simpler than installing a separate profile in each country, but compare its listed destinations, data allowance, validity rules and network conditions before purchase. The presence of eSIM on a phone does not establish which countries a particular plan includes.

Kaspersky eSIM Store is an app and website where you can choose, arrange and activate an eSIM plan for mobile data during an international trip. After confirming that your phone is compatible, you can browse current travel plans and review the destination, data amount, validity and activation conditions shown for each option. The page is a general store entry point, not a country-specific tariff. The available plans and terms can change, so check the current details for your own route before arranging one.

Troubleshooting: when setup or data does not work

Work through these checks before deleting a profile or resetting network settings.

“Add eSIM” is missing

Search Settings for “eSIM” and check Settings > Connections > SIM manager. Look for an EID at Settings > About phone > Status. Confirm the exact model number, original sales market and official software updates for that region. If EID and Add eSIM are both missing, ask Samsung or the seller to confirm the variant. RAM alone does not prove eSIM capability.

The QR code will not scan or the profile will not download

Use stable Wi‑Fi and ensure the code belongs to this plan, is legible and has not expired or already been used. If scanning fails, use manual activation only when the provider supplied those details. Ask the provider whether the code can be reissued.

The eSIM appears, but there is no mobile data

Confirm the eSIM is enabled and selected for mobile data. Check the plan’s destination, activation state and allowance; enable data roaming for that line if required. Toggle Airplane mode or restart. Enter an APN only if the provider supplied it.

The phone shows “No service”

Check destination coverage, plan activation and the provider’s network-selection instructions. Try automatic network selection first; use a named manual network only when instructed. Move to a location with better reception, then contact the provider if registration still fails.

Home SIM charges or a deleted profile

In SIM Manager, check which line handles data and review roaming for each line separately. Ask your home carrier about roaming costs. A QR code may be single-use, and deleting a profile may prevent reinstallation, so contact the provider before retrying or resetting the phone. Keep activation details private.

Frequently asked questions

Does every Samsung Galaxy S20 8GB RAM have eSIM?

Samsung lists eSIM support for the Galaxy S20 family, but the exact name does not reveal the regional model code, carrier configuration or software build. Verify EID and Add eSIM on your unit and confirm support with Samsung or the seller.

Is 8GB RAM the same as 5G support?

No. RAM and cellular capability are separate. Samsung’s UK launch table pairs 8GB RAM with an LTE S20 configuration; check the model number rather than inferring network support from RAM.

Does an EID guarantee that a travel plan will work?

No. The provider must support the device and activation method, and the plan must cover your destination.

Can I keep my physical SIM installed?

Often, one physical SIM can remain active alongside an eSIM, but model and active configuration matter. Samsung says only two SIMs can operate at once on the S20 range.

Will the travel eSIM give me a regular phone number?

Do not assume so. Many travel plans focus on data; check the plan description for voice or SMS. Data-only plans can support messaging and internet calls through apps.

Should I install the profile before my trip?

Check the plan’s activation rules. Some profiles can be installed early; validity may start at installation or first connection. Follow the current provider instructions.

Before you choose a travel plan

For Samsung Galaxy S20 8GB RAM, the useful answer is conditional: Samsung documents eSIM for the Galaxy S20 family, but the RAM label alone does not prove that a specific regional or carrier unit can add an eSIM. Confirm the model number, look for an EID, and check for Add eSIM in SIM Manager. If either check is unclear, get confirmation from Samsung or the seller before arranging a plan.

Once the phone passes those checks, compare the travel plan’s countries, data allowance, validity and activation method with your itinerary. Keep your home line’s roaming settings in mind, and decide which SIM will carry mobile data. Kaspersky eSIM Store lets you browse and arrange eSIM plans for mobile data on international trips; check the current plan details and your phone’s compatibility before you proceed. That short verification helps you avoid arriving with a plan that your particular device or destination cannot use.