Is London completely covered?
Yes. 4G/LTE everywhere in Greater London and major UK cities. Central London has 5G on all networks. The Tube has 4G at sub-surface stations; deeper lines are being upgraded.
Does this work in Scotland and remote highlands?
Yes. All major Scottish cities (Edinburgh, Glasgow, Aberdeen) have full coverage. Remote Highland glens may have 3G or signal gaps — bring an offline map for these areas.
Is this cheaper than a UK tourist SIM from Heathrow?
Yes. Airport SIM vendors charge significant premiums. Flysimio connects to O2, T-Mobile UK and Three at lower cost, purchased before you travel.
Does this work in Northern Ireland?
Yes. Full 4G coverage throughout Northern Ireland including Belfast, Londonderry, and the Causeway Coast.
Is 5G included?
5G is available in major UK cities via EE and Vodafone. Our plans connect to 5G automatically where available — no separate 5G plan needed.
What is an eSIM?
An eSIM (embedded SIM) is a digital SIM built into your phone. Instead of a physical card, you scan a QR code and your plan installs instantly — no SIM tray needed.
Is my phone eSIM-compatible?
iPhone XS (2018) and newer, most Android flagships from 2020+, and all Samsung Galaxy S21+ devices support eSIM. Check our compatibility page for the full device list.
How do I install the eSIM?
After purchase, we email a QR code. On iPhone: Settings → Cellular → Add eSIM → Scan QR Code. On Android: Settings → Network & Internet → SIMs → Add eSIM. The whole process takes under 60 seconds.
Can I keep my regular SIM while using this eSIM?
Yes. Most phones support dual SIM (physical + eSIM). Keep your home number for calls and SMS — use Flysimio for data abroad. You control which SIM handles what in your phone Settings.
Does the eSIM come with a local phone number?
No. Flysimio travel eSIMs are data-only, so there is no local phone number for calls or SMS. WhatsApp, iMessage, FaceTime and other calling apps work over the data connection, and your home number stays active on your regular SIM for calls and texts.
How fast is the eSIM?
You connect to the same local 4G/LTE and 5G networks listed on this page, at the speeds those networks give local customers where you are. 5G works where the network and your phone both support it. Daily plans run at full speed up to the daily allowance and are slowed for the rest of that day; fixed-data plans run at full speed until the data is used.
Does the eSIM include a hotspot (tethering)?
Yes, all Flysimio plans include mobile hotspot at no extra charge. Share your data connection with laptops, tablets, or other devices freely.
What happens when my data runs out?
You can top up data from your account dashboard at any time. Top-ups are applied instantly — no need to buy a new eSIM or wait.
Can I get a refund?
Yes. Full refund within 7 days of purchase, no questions asked, as long as the eSIM is unused or has used less than 100 MB — that allowance means you can install it and check it connects without losing the guarantee. Past 100 MB we still refund in full for verified faults, such as activation details that never arrived or a technical failure on our side. Contact contact@flysimio.com with your order number.
How long is the eSIM valid for?
You have 6 months from your purchase date to activate the eSIM. Once activated, the plan validity period (e.g., 7 days, 30 days) begins counting down.
Will the eSIM work at the airport when I land?
Yes — as long as you installed the eSIM before your flight, it activates automatically when your phone connects to a local network on landing. No Wi-Fi required for activation.
What if the QR code doesn't scan?
If the QR code won't scan, you can enter the activation code manually — we include both in the email. You can also contact our 24/7 support team and we'll resend or manually provision your eSIM.
