# A travel eSIM may include data, but no calls or local number

Check device compatibility, carrier lock, data-only limits and your home line's roaming settings before buying.

[Canonical HTML page](https://nosecrets.app/en/stories/travel-esim-data-only-roaming)

Published by: [No Secrets Research](https://nosecrets.app/en/about#methodology)
Added: 2026-10-20
Topic: Technology

## Scope and context

Applies to: International travel · iPhone examples; carrier terms vary
Time context: Public guidance checked October 20, 2026
Sources checked: 2026-10-20

Availability depends on device model, purchase region and carrier. This is not a ranking or endorsement of eSIM sellers.

## An eSIM is not a feature bundle

Apple notes that travel options include data-only plans and local carrier plans that may include a number. Messaging through an internet app is different from receiving a carrier SMS on a local number.

[1: Apple](https://support.apple.com/en-gb/118227)

## Your original line can remain relevant

Apple's roaming guide explains controls for cellular data and roaming. Confirm which line provides data and what your home carrier charges for services you leave enabled.

[2: Apple](https://support.apple.com/en-us/109037)

## Make a purchase checklist

Our checklist: unlocked-device support, destination coverage, validity start, tethering, speed limits after allowance, voice/SMS and refunds if activation fails. Get written answers for features that matter to your trip.

[1: Apple](https://support.apple.com/en-gb/118227) · [2: Apple](https://support.apple.com/en-us/109037)

## Sources

1. [Use eSIM while travelling internationally with your iPhone](https://support.apple.com/en-gb/118227) — Apple. Checked 2026-10-20. Explains unlocked devices, travel plans and data-only options.

2. [About cellular data roaming options for your iPhone and iPad](https://support.apple.com/en-us/109037) — Apple. Checked 2026-10-20. Explains roaming controls and carrier-plan checks.

## Disclosure

AI-assisted research, writing and translation by No Secrets, using the linked public documents. This is a source summary, not firsthand reporting or an independently audited investigation. No affiliate links are used in this article.

The source-check date is not the event date. Original documents control if a summary differs.