SMARTY UK eSIM Keep-Number Guide: Pause Auto-Renew, 220-Day Rule, and Official Checks

What this guide covers

Source author @Wangdaso (long-form, 2026-08-05) describes SMARTY as a UK backup number: online eSIM, signup usable from abroad (author’s report), and low-cost keep-number by disabling auto-renew. The source also promoted a fingerprint browser (AdsPower) with invite links—removed entirely here. This article keeps only SMARTY signup, pause, and keep-number material plus official checks.

No invented personal tests. Plan prices and “SMS in China while paused” claims are labeled as the source author’s case; official Help / price pages win on conflicts.

Official: SMARTY · Pause my plan · If I don't renew · China roaming · Out of plan add-ons

Official checks (important)

| Topic | Source post | Official check (at capture) | | --- | --- | --- | | Low plan | £6/mo · 5GB + unlimited UK calls/texts | Homepage price chips include £6 among others; live checkout wins | | How to pause | Turn off Auto-Renew | Help: Payment Settings → Disable auto-renew; current paid month runs to cycle end | | How long kept | ~half-year cycle; renew ~day 170–180 | Help: account kept open about 6 months; also 220 inactive days auto-closes; email ~40 days prior (PAC + balance) | | While paused | Can receive calls/SMS; no outbound/data | Non-renew article: cannot make/send calls/texts or use data until renew; inbound abroad while paused is not separately guaranteed—treat author SMS claims as anecdote | | China SMS | Receive free | China table: receiving texts FREE; sending priced; non-EU use often needs Out-of-plan add-ons, and add-ons need an Active plan | | Keep number with £1 data add-on only | No | Official: services/add-ons require an active monthly plan |

When Help says both “~6 months” and “220 days”, plan renewals on the more conservative window. The author’s ~170–180 day rebuy is safer than waiting until day 219.

Who it may suit

Maybe: You need a UK +44 backup for SMS, accept prepaid monthly plans, want eSIM, no long contract, and will rebuy a month of Voice service on the official cadence.

Caution: Expecting zero-cost forever, needing outbound SMS/calls/data while paused, heavy China data roaming (expensive), or binding every critical account to one UK SIM.

SMARTY is a prepaid brand on the Three network (public materials). Official copy says no traditional credit check for monthly plans. The author reported no ID upload / video KYC at signup—that can change.

Before you buy

• A real long-term email (eSIM, codes, closure warnings)
• Payment: card, PayPal, Apple Pay, Google Pay, etc. (Google Pay, not Google Play balance)—confirm checkout
• eSIM device: dial *#06# for an EID (official tip). Otherwise physical SIM / writer (author’s “blank card” is their setup only)
• Stable network; keep the same network/device through signup and payment. This guide does not recommend or document any fingerprint browser.

Signup steps (aligned to SMARTY screenshots)

1. Open smarty.co.uk, pick a Voice plan with calls/texts/number (author used £6 / 5GB then). Skip Data Only if you need SMS keep-number.
2. Choose eSIM (new users can select eSIM in signup).
3. Enter name, DOB, email, address, payment. Use a real address; match card billing when paying by card. Port-in can be “Maybe later”.
4. Pay. On failure, check overseas/3DS/billing/bank prompts—don’t hammer retries.
5. Emails: eSIM QR and a 4-digit code (often separate). Scan, enter the code, pick a SMARTY number (or PAC later).

Keep-number: disable auto-renew

SMARTY is not a classic “top up £x forever” PAYG keep-alive. The loop is:

Buy one month → disable auto-renew → pause after the month → buy another month before closure → disable again.

Path: Dashboard/App → Payment Settings → Disable auto-renew. Confirming email follows; the paid month usually continues to period end.

While paused

• Official non-renew text: no outbound calls/texts and no data until you renew.
• Author says inbound calls/SMS still work; Help does not separately promise stable inbound OTP abroad while paused. China price list: receive SMS free, but outbound/non-EU use often needs add-ons, and add-ons require Active plan.
• Treat “paused + SMS in China” as the author’s case—self-test; don’t rely on one SIM for every account.

Respect the closure window

• 220 inactive days → auto close; ~40-day warning email (PAC/balance).
• Same Pause article also says roughly 6 months. Renew earlier (author ~170–180 days). Author’s then-£6 math ≈ £12/year—prices change.

Data add-ons alone cannot keep the number

Add-ons need an active monthly plan. You cannot skip the Voice month and “keep” the line with a £1 1GB pack.

Optional: port-in (PAC)

Get a PAC from your old UK operator (e.g. Giffgaff), confirm SMARTY works, then use Your phone number with PAC/STAC.

Pros / cons (fingerprint-browser items removed)

Pros: Direct eSIM for new users; prepaid monthly; no traditional credit-check framing; China receive-SMS free on the price table; pause via auto-renew off; several online payment methods.

Cons: Not free; no outbound/data while paused; China data costly; inbound calls in China are charged on the table; paused OTP abroad needs self-test; not every platform accepts every UK range.

Checklist

1. Voice plan → eSIM → pay.
2. Activate from email; pick number or PAC later.
3. Disable auto-renew after testing.
4. Rebuy within the 6-month / 220-day window (aim ~170–180 days).
5. Don’t use data add-ons alone to keep the number.
6. Author SMS anecdotes ≠ guarantee; re-check live SMARTY pages.

Sources

• Source: https://x.com/Wangdaso/status/2084914699154428057 (@Wangdaso). Removed AdsPower referral link/code and all fingerprint-browser tutorial/screenshots.
• Official SMARTY site and Help articles cited above.
• BiyaPay not involved. Re-check live pages before ordering.