Is the Nothing Phone (3a) eSIM compatible?

No. The Nothing Phone (3a) (2025) does not support eSIM.

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

The detail and the caveats

Dual nano-SIM only; some third party sites wrongly claim eSIM support.

Nothing pattern: The only Nothing phone with confirmed UK eSIM is the Nothing Phone (3) (2025). The 2026 Phone (4a) and Phone (4b) support eSIM only in Japan-market units; the Phone (4a) Pro is unconfirmed. Phone (1), (2), (2a), (2a) Plus, (3a), (3a) Pro and the CMF line are physical SIM only. Nothing is not releasing a flagship Phone (4) in 2026.

Dual eSIM: not applicable, since standard eSIM support is absent on this model.

Verify your exact unit in 10 seconds

Model level answers have limits, especially with grey imports and regional variants. To test the actual Phone (3a) 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 Phone (3a) supported on the ONSIM network? No

Whether a phone has eSIM and whether it works on a specific network are different questions. The Nothing Phone (3a) 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 →

Nothing Phone (3a) eSIM questions

Does the Nothing Phone (3a) support eSIM?

No. The Nothing Phone (3a) (2025) does not support eSIM. Dual nano-SIM only; some third party sites wrongly claim eSIM support.

How do I check if my Nothing Phone (3a) has eSIM?

Dial *#06# on the Phone (3a). 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 Nothing Phone (3a)?

Not applicable in the usual sense: the Phone (3a) does not support eSIM at all.

Does the Nothing Phone (3a) work with ONSIM?

No. The Nothing Phone (3a) 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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