how-to
How to install a travel eSIM on iPhone and Android
Step-by-step install for both platforms. Most installs take under 90 seconds. The five things that actually go wrong — and how to fix them — are at the bottom.
June 2, 2026 · eSIMBench Editorial
Most travel-eSIM installs take under 90 seconds. The flow is the same across every provider tracked on the eSIMBench leaderboard: purchase opens an activation code (delivered as a QR image or as the SM-DP+ address + activation code in text form), the phone’s eSIM settings accept either form, and the profile downloads. The configuration after install is what trips up first-time users — not the install itself.
What goes wrong most often, in order of frequency:
Mobile Data is still using the home SIM. The install succeeds, but the phone keeps using the home carrier’s network because the user didn’t switch Mobile Data to the new eSIM in settings. Symptom: “No service” or no data on arrival despite the eSIM being installed. Fix: open Cellular (iOS) or SIM manager (Android), confirm Mobile Data is set to the travel eSIM, and disable Data Roaming on the home SIM.
The eSIM is “Active” but won’t connect to a network. Usually because the eSIM is installed at home but cannot register on a domestic network — most travel-eSIM profiles need to see a foreign carrier signal before they start working. This is by design, not a bug. The eSIM activates the moment the phone lands and connects to a local tower at the destination.
Wrong activation code pasted. The SM-DP+ address and activation code are two separate fields. Pasting the QR string into one box (or splitting them wrong) leads to “Could not add cellular plan.” The QR scan is the safer path — it parses both fields automatically.
Phone not on the supported-device list. The provider’s app lists supported phones before purchase; if the device isn’t on it, the profile install will fail. Most flagship phones from 2020 onward work; mid-range Androids and pre-2018 iPhones do not.
Carrier-locked phone. Some US carrier-locked phones reject foreign eSIMs even on supported hardware. Unlocking the phone (via the home carrier) is the only fix. This is rare outside the US carrier ecosystem.
For the actual install steps, see the HowTo section above. The Best for first-time users ranking re-weights the bench dimensions in favor of App Quality and Customer Support — useful for picking a provider whose activation flow is the most forgiving if a first install goes sideways.
Frequently asked
- Can I install the eSIM before I leave home?
- Yes, and it's the recommended approach for most providers. The profile installs over the home Wi-Fi connection; activation happens when the eSIM first registers on a network in the destination country. Some providers offer 'install now, activate on arrival' explicitly — others activate on install, which starts the validity countdown on the plan. Check the provider's activation policy on their scorecard or app before installing.
- Do I need to remove my physical SIM?
- No. Modern phones run a physical SIM and one or more eSIMs simultaneously. The whole point of the dual-SIM travel setup is that the home physical SIM stays in for calls and SMS, while the travel eSIM handles data. Removing the home SIM means losing the home phone number's reachability, which usually isn't the goal.
- The eSIM installs but shows 'No service' — what's wrong?
- Three common causes: (1) the eSIM is set to Voice but not Data — open Cellular settings and confirm Mobile Data is using the eSIM; (2) network selection is set to manual on the home SIM's old carrier — set it to Automatic; (3) the eSIM hasn't activated yet because it needs to register on a network in the destination country, not on the home country's network. The third one is normal on day-one-at-home installs.