Xiaomi 15 Ultra 1TB 5G eSIM: compatibility, setup and travel use

The Xiaomi 15 Ultra 1TB 5G can use eSIM when it is the supported regional version of the phone. Xiaomi’s current global support information lists the Xiaomi 15 Ultra as eSIM-compatible, while regional product specifications list a 16GB + 1TB configuration. The 1TB storage label by itself does not identify which market version you own. Xiaomi warns that eSIM availability can vary by country or region and by carrier, and an imported phone may have different hardware, firmware, or operator restrictions.

Short answer: an official global-market Xiaomi 15 Ultra 1TB 5G should support eSIM, subject to its exact regional SKU, software, and service plan. Before purchasing a travel plan, confirm that your phone shows an EID or an eSIM management/add-plan option, is not carrier-locked, and can use the plan in your destination. If your settings do not match the steps below, ask Xiaomi support to confirm the model code and market version rather than relying on storage capacity or a seller listing.

Xiaomi 15 Ultra 1TB 5G at a glance

An eSIM is a digital SIM profile held in the phone’s embedded SIM hardware. It is separate from the 1TB storage used for apps and files. A large-storage version does not gain eSIM support if its regional configuration does not include the feature.

Does this exact 1TB version support eSIM?

Xiaomi’s global support FAQ says the Xiaomi 15 Ultra supports eSIM, can add up to 10 profiles, and can use up to two eSIMs at once. Regional Xiaomi product pages list a 16GB + 1TB configuration. These official details support eSIM on an officially supported Xiaomi 15 Ultra 1TB version sold in a market where Xiaomi enables the feature.

The qualification is important: Xiaomi’s eSIM statement is for the model family, not a promise about every handset sold under the same name. A China-market or imported phone, carrier-customized version, or handset running altered firmware may differ from the global retail version. A “1TB” or “5G” seller description alone does not prove eSIM eligibility.

Xiaomi states that eSIM availability varies by country/region and carrier. The phone must be unlocked for another provider’s profile, and the plan issuer must support provisioning for the device and destination. Confirm the product code and software region with Xiaomi or the seller, then check the menus on the actual phone.

The 5G label indicates network capability, not eSIM eligibility. An eSIM can use 4G/LTE where 5G is unavailable. Actual 5G access also depends on bands, the local network, plan and coverage.

Regional and carrier versions: what can change?

Regional differences may affect SIM combinations, radio bands, firmware features, and operator provisioning. Xiaomi documents eSIM availability as dependent on country/region and carrier. Menu labels can also change with HyperOS updates. A missing eSIM menu should prompt verification of the handset, not installation of an unknown profile or unofficial firmware.

Check the following:

• Market version: Match the model code and sales region in Settings, on the box, or in purchase documents with Xiaomi’s local support information. A “Global ROM” shop claim does not necessarily mean an official global-market model.
• Carrier lock: A SIM lock may block another provider’s travel eSIM even when the phone has eSIM hardware. Ask the original carrier to confirm the phone is unlocked.
• Software: Install official updates and restart; menu labels and availability can depend on supported firmware.
• Plan and network: Confirm the provider supports the phone and all destinations, then check local networks and relevant bands. eSIM capability alone does not promise coverage or speed.

If there is no EID or eSIM option, hold off on purchasing a non-refundable plan. Ask Xiaomi or the carrier to check the exact model code and IMEI securely. Model-family support does not override a regional restriction on a particular handset.

Check EID and eSIM settings yourself

Check the Xiaomi 15 Ultra 1TB 5G you will actually take on the trip. Menu wording varies with HyperOS, region, and language.

1. Open Settings and search for EID, eSIM, or Manage eSIM.
2. Look for an EID under About phone, Status, or SIM status. Depending on software, entering *#06# in the dialler may display device identifiers. Keep these private.
3. Open Settings → SIM cards & mobile networks or the similar SIM/network page. Look for Use eSIM, Manage eSIM, or Add mobile plan.
4. If the setting is available but off, enable it and follow the prompts. Xiaomi notes that enabling eSIM can disable the second physical SIM slot in some arrangements.
5. Confirm that an add/download plan function appears. You do not need to scan a purchase QR code just to verify the menu.
6. If missing, install official HyperOS updates, restart and search again. If it remains absent, ask Xiaomi to confirm the regional SKU and ask the carrier whether eSIM provisioning is restricted.

An EID is a useful sign, but not a full compatibility test. The phone must accept the profile, be unlocked, and work with the provider’s network and plan. Share identifiers only through verified support channels.

Compatibility checklist before you buy

Check the phone, plan, and trip together:

• [ ] Settings displays an EID or eSIM management/add-plan option.
• [ ] Xiaomi or the seller confirms the exact regional SKU is eSIM-enabled.
• [ ] The phone is unlocked and official software is current.
• [ ] The provider supports this handset and every country on your itinerary.
• [ ] You checked validity start, data allowance, networks, tethering, and speed/fair-use terms.
• [ ] You have Wi-Fi for installation and a secure QR code or manual activation details.
• [ ] You know which line provides data and whether roaming must be enabled for that eSIM.

For a preliminary check, check your device. Treat it as a starting point: verify the handset’s EID/settings and the provider’s current plan conditions for your exact market version.

Install and activate an eSIM

Read the plan instructions first. Some plans start validity when installed; others start at first connection to a supported network. QR codes are often single-use, so do not scan one on another phone or delete the profile unless the plan says it can be installed again.

Before installation

• Connect to stable Wi-Fi and charge the phone.
• Keep the QR code or manual SM-DP+ address and activation code available securely.
• Confirm destination, start date, data allowance, validity and hotspot rules.
• Keep your usual SIM active until the travel eSIM is installed and selected.
• Do not share the QR code or activation details.

Add the profile

1. Open Settings → SIM cards & mobile networks → Manage eSIM. Wording varies; turn on Use eSIM first if asked.
2. Choose Add mobile plan or Add eSIM.
3. Scan the provider’s QR code. If that is not possible, enter the SM-DP+ address and activation code exactly as supplied.
4. Keep Wi-Fi connected while the profile downloads.
5. Label it clearly, such as Travel data. Switch it off when unused rather than deleting it unless instructions require deletion.
6. Confirm the profile appears in the SIM manager. Downloading a profile and connecting to service are separate steps.

Use the Android installation instructions for this Xiaomi phone. The iOS installation instructions are available for travellers setting up an iPhone.

Set the data line and connect

1. In the SIM manager, select the travel eSIM as mobile data when ready. Keep calls/texts on your usual SIM if you need that number and the phone permits it.
2. Turn on mobile data for the eSIM. Enable data roaming for that line only if the plan requires it.
3. Check activation timing before departure. If installation starts validity, leave the profile off until arrival.
4. At your destination, turn it on, try automatic network selection, and wait for registration. If needed, manually select a network named in the plan instructions.
5. Test data in a browser or messaging app. Confirm the travel profile is selected and the home SIM is not unexpectedly roaming.
6. Use hotspot only if the plan permits tethering.

Kaspersky eSIM Store is an app and website where you can choose, purchase, and activate an eSIM with a mobile-data plan for an international trip. It is not a mobile network: service, coverage, speeds, and restrictions depend on the selected plan and local network. Once compatibility is confirmed, review destinations, data and validity in the app or website and choose a plan for your itinerary.

Using the eSIM on a trip

One-country holiday. Install over Wi-Fi before departure if allowed, but check when validity starts. On arrival, select the eSIM for data, enable its roaming setting if required, and wait for registration. Keep your home SIM for calls or texts only if you accept any charges from your carrier.

Several countries. A country plan may stop working at the border. Compare a regional plan with separate country plans and confirm every destination is included. Validity does not necessarily reset when you cross into another country.

Work trip with a home number. Supported regional versions may allow physical SIM/eSIM combinations or multiple profiles. Xiaomi says the 15 Ultra can store up to 10 profiles and use up to two eSIMs at once on supported versions, but actual combinations depend on region and software. Select the travel profile for data and review home-line roaming settings.

Managing data. Maps, messaging and browsing use less than video calls, backups or streaming. Download offline maps, pause automatic photo backups, and monitor data use. Choose an allowance that matches your habits; do not assume a plan is unlimited or always full-speed.

Travel eSIM plans generally provide mobile data, not a standard number, calls, or SMS unless the terms say otherwise. Messaging and internet calls can work over data. Compare the plan with home roaming before travel.

Common problems and what to check

No EID or eSIM menu: Search Settings after an official update and restart. Confirm market version and model code. If the option remains missing, ask Xiaomi support to check the SKU before buying a plan.

QR code fails or profile will not download: Use stable Wi-Fi, brighten the QR display, and confirm the code has not already been used. If available, enter manual activation details. A code may be one-time; contact the plan issuer after repeated failures.

Profile is installed but has no service: Check activation timing and destination coverage. Turn on the eSIM, select it for data, and enable roaming for that line if required. Toggle airplane mode briefly or restart. If automatic selection fails, manually choose a network listed in the plan instructions.

Wrong SIM uses data or home SIM loses service: Verify data, call, and SMS defaults in SIM settings. Xiaomi says eSIM activation can affect the second SIM slot on some arrangements. Disable roaming data on the home SIM to avoid accidental use, while considering whether you need that line enabled.

Profile cannot move to a replacement phone: Profiles are often tied to the device or limited to one installation. Transfer, reissue and refund rules depend on the plan. Do not delete a working profile until support explains recovery.

Frequently asked questions

Can I keep a physical SIM and use a travel eSIM?

Supported versions may allow a physical SIM/eSIM combination, but details vary by market and firmware. Enabling eSIM may disable the second physical slot on some configurations. Check the SIM manager on your phone.

How many eSIMs can I save or use at once?

Xiaomi’s current global FAQ says up to 10 profiles can be stored and up to two eSIMs used simultaneously. Actual limits depend on profile memory, region and software. Follow the limit displayed on your phone.

Will the plan give me a local phone number?

Only if the terms explicitly include one. Travel data plans generally provide internet rather than ordinary calls, SMS or a local number.

Should I install before flying, and can I transfer it later?

Check when validity begins: installation or first network connection. Many profiles are one-time or device-bound. Transfer, reissue, deletion and refund terms depend on the plan, so ask the provider before deleting an activated profile.

Final device check and trip eSIM

Before paying, confirm that your Xiaomi 15 Ultra 1TB 5G shows an EID or eSIM add/manage option, identify its official market version, and verify that it is unlocked. Then match the plan to the countries on your route, data allowance, validity period, network, and activation rules. Resolve unclear device details with Xiaomi or the original carrier before buying.

After compatibility is confirmed, use the Kaspersky eSIM Store app or website to choose and arrange an eSIM plan for mobile data during your international trip, then follow the installation steps supplied with the plan. Keep your physical-SIM settings, roaming choices, and activation details under your control, and check data use as you travel.