Is the Huawei P40 eSIM compatible?

Yes. The Huawei P40 (2020) supports eSIM in its UK version.

Verified against the manufacturer and UK carrier sources. Data last updated 2026-07-23.

The detail and the caveats

Nano-SIM plus eSIM; no Google Mobile Services (HMS only).

Huawei pattern: The P40, P40 Pro and Mate 40 Pro (2020) support eSIM in UK models but ship without Google Mobile Services. The P40 Pro+ has no eSIM, and later Huawei flagships were not sold in the UK.

Dual eSIM: no, the P40 runs one active eSIM at a time (usually alongside the physical SIM).

Verify your exact unit in 10 seconds

Model level answers have limits, especially with grey imports and regional variants. To test the actual P40 in your hand:

  1. Open the dialler and dial *#06#.
  2. Look for an EID: a 32 digit number shown alongside the IMEI.
  3. EID present = the phone has eSIM hardware. No EID = no eSIM.

You can also check Settings > About phone for an EID entry.

A separate question

Is the P40 supported on the ONSIM network? No

Whether a phone has eSIM and whether it works on a specific network are different questions. The Huawei P40 is not on the ONSIM supported device list, so it will not work on the ONSIM network even if the handset itself supports eSIM. ONSIM is explicit that unlisted devices will not work and it is unable to troubleshoot them. A Virtual Landline (which diverts calls to the phone you already have, on any network) works with every phone.

Check another phone ONSIM supported devices → Landline SIM →

Huawei P40 eSIM questions

Does the Huawei P40 support eSIM?

Yes. The Huawei P40 (2020) supports eSIM in its UK version. Nano-SIM plus eSIM; no Google Mobile Services (HMS only).

How do I check if my Huawei P40 has eSIM?

Dial *#06# on the P40. If an EID (a 32 digit number) appears alongside the IMEI, your unit has eSIM hardware; no EID means no eSIM. You can also open Settings > About phone and look for an EID entry. This checks your exact handset, which matters for grey imports and regional variants.

Can I use two eSIMs at once on the Huawei P40?

No. The P40 supports eSIM, but only one active eSIM at a time. You can still run two lines by pairing the eSIM with a physical SIM in the tray.

Does the Huawei P40 work with ONSIM?

No. The Huawei P40 is not on the ONSIM supported device list, so it will not work on the ONSIM network even if the handset itself supports eSIM. ONSIM is explicit that unlisted devices will not work and it is unable to troubleshoot them. A Virtual Landline (which diverts calls to the phone you already have, on any network) works with every phone. See the supported devices page for what is covered.

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