Is the Google Pixel 3a eSIM compatible?

Yes. The Google Pixel 3a (2019) 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

First Pixel with dual SIM standby (physical SIM plus eSIM); Japan and Verizon units lack eSIM.

Google pattern: Every Pixel from the Pixel 3 (2018) onward sold in the UK supports eSIM. Pixel 3 has no dual SIM standby; Pixel 3a to 6a run one eSIM alongside the physical SIM; Pixel 7 and later support two active eSIMs. Pixel 2 eSIM only ever worked on Google Fi in the US.

Dual eSIM: no, the Pixel 3a 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 Pixel 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 Pixel 3a supported on the ONSIM network? No

Whether a phone has eSIM and whether it works on a specific network are different questions. The Google Pixel 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 →

Google Pixel 3a eSIM questions

Does the Google Pixel 3a support eSIM?

Yes. The Google Pixel 3a (2019) supports eSIM in its UK version. First Pixel with dual SIM standby (physical SIM plus eSIM); Japan and Verizon units lack eSIM.

How do I check if my Google Pixel 3a has eSIM?

Dial *#06# on the Pixel 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 Google Pixel 3a?

No. The Pixel 3a 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 Google Pixel 3a work with ONSIM?

No. The Google Pixel 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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