Skip Three UK roaming in Belgium
Three UK customers travelling to Belgium typically pay around $614/GB on legacy roaming, or $5/day for a roaming pass. Silent eSIM is $1.08/GB — no expiry, no contract, no ID.
How to avoid Three UK roaming fees in Belgium
- 01 Keep your Three UK SIM active for calls and SMS 2FA at home.
- 02 Install Silent eSIM as a second line (every modern iPhone, Pixel, and Galaxy supports dual eSIM).
- 03 Land in Belgium, set Silent eSIM as the data line — pay $1.08/GB instead of $614.
- 04 Turn off "Data Roaming" on your Three UK line so it never accidentally bills.
What Three UK roaming actually costs in Belgium
Most Three UK customers activate a day pass at $5/day when they land. For a 5-day trip that's $25 — before you've used a single GB. For a 7-day trip, $35.
Silent eSIM charges $1.08/GB with no daily fee and no expiry. A typical traveller uses 2–4 GB per week. At Silent eSIM rates, that's $2.16–$4.32 for the whole trip — compared to $35 on a Three UK day pass.
You don't have to cancel Three UK
Silent eSIM runs alongside your Three UK SIM as a second line. Every modern iPhone (XS and later), Google Pixel (3 and later), and Samsung Galaxy (S20 and later) supports dual SIM. Keep Three UK active for calls, SMS, and two-factor authentication. Set Silent eSIM as the data line the moment you land in Belgium. Turn off Three UK data roaming so it never accidentally bills you.
When you leave Belgium, your Silent eSIM balance doesn't disappear — it carries to your next trip to any of 200+ countries. Load it once, use it for years.
FAQ
Will I keep my Three UK number?+
Yes. Silent eSIM is installed alongside your Three UK SIM. Your number stays active for calls, SMS, and 2FA — only the data plan changes.
Is Silent eSIM cheaper than Three UK's day pass in Belgium?+
For most trips, yes. The Three UK day pass charges $5 every day you use any data. Silent eSIM charges $1.08/GB with no daily fee. A typical 7-day trip using 3 GB costs $3.24 on Silent eSIM versus $35 on the day pass.
How much data do I need for a week in Belgium?+
Most travellers use 1–2 GB per day for maps, messaging, and occasional browsing. A 7-day trip typically needs 5–10 GB. At $1.08/GB that's $5.40–$10.80 total — with no daily fees and no expiry on anything left over.
Does Silent eSIM work on Three UK phones?+
Silent eSIM works on any unlocked eSIM-compatible device regardless of carrier. Most Three UK phones sold after 2020 are unlocked by default. Check Settings → General → About on iPhone, or Settings → Connections → SIM Manager on Android.
Does this work in countries beyond Belgium?+
Yes — the same Silent eSIM works in 200+ countries with no reinstall. Your USD balance carries between trips and never expires.
Do I have to cancel Three UK?+
No. This is a per-trip replacement for roaming data, not for your home plan. Keep Three UK for everyday use at home.