Unlimited Extra Days eSIM – mobile data for your trip
Unlimited Extra Days

eSIM Unlimited Extra Days

Best eSIM for Unlimited Extra Days from 3,95€ – lowest prices, instant activation on Premium. Keep your WhatsApp number, no contract.

Instant delivery
Network: Premium 4G/5G
24/7 WhatsApp support
Money-back guarantee
Secure payment
Valid for +1 Days
4,94€ 3,95€
Valid for +2 Days
8,69€ 6,95€
Popular
Valid for +3 Days
12,44€ 9,95€
Valid for +4 Days
16,19€ 12,95€
Valid for +5 Days
19,94€ 15,95€
Valid for +6 Days
23,69€ 18,95€
Valid for +7 Days
27,44€ 21,95€

Your Selection

Unlimited Extra Days eSIM-
NetworkPremium
Duration-
Total-

Your plan only starts counting when the eSIM first connects at your destination — so you can buy today and travel in three weeks.

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How does Simbye eSIM work for Unlimited Extra Days?

1

Choose your eSIM data plan for Unlimited Extra Days

Select a plan that suits your needs and purchase it. You will receive a QR code via email.

2

Tap Install Button

Open the email and tap on Install eSIM.

3

Enable Data Roaming

The eSIM can only be activated in Unlimited Extra Days. Then turn on data roaming and your phone connects on its own.

Check Device Compatibility

Make sure your device supports eSIM before purchasing

Why choose our eSIM?

The Simbye Unlimited Extra Days add-on extends an Unlimited eSIM you already bought from Simbye by 1 to 7 days. The days are added to that same eSIM, so you keep using the profile already installed on your device.

Unlimited Extra Days at a glance

  • Extends: an Unlimited eSIM you already bought from Simbye
  • Extra days: 1, 2, 3, 4, 5, 6 or 7 days, from +1 Day to +7 Days
  • Where the days go: onto your existing eSIM, which stays installed on your device
  • Contract: none
  • Manage: your eSIM and your remaining days in the Simbye app
  • Works with: any eSIM-compatible iPhone or Android phone

How to add extra days to your Unlimited eSIM

  1. Make sure you have an active Unlimited eSIM from Simbye.
  2. Select the number of extra days you need and complete the purchase.
  3. The days are added to that eSIM. Keep using the profile already installed on your device.

Unlimited Extra Days: questions and answers

Will my data keep running after my original period ends?

Yes. The extra days are added to your existing Unlimited eSIM, so you can keep using data after your original period ends.

How many extra days can I add?

You can add between one and seven days. The options run in single-day steps from +1 Day to +7 Days.

Do I need a second eSIM to extend my stay?

No. You extend your stay without buying a second eSIM, because the days go onto the eSIM you already use.

Is Unlimited Extra Days the right choice for me?

It fits if you already own a Simbye Unlimited eSIM and your trip runs longer than planned.

Network
4G/5G Premium
Coverage
98% Country Coverage
Speed
4G/5G
Data Plans
+1, +2, +3, +4, +5, +6, +7
Validity after Activation
7-180 Days
Hotspot
Yes
Voice Call
✗ Voice apps only
Plan Type
Prepaid eSIM
eKYC (Identity Verification)
✗ No
Delivery
2 MIN
Phone Number
✗ No
eSIM Validity
180 Days

Frequently Asked Questions about Unlimited Extra Days eSIM

Data, calls, real phone numbers, top-ups and setup — everything you need to know before you buy a Simbye eSIM.

Unlimited Extra Days is an eSIM add-on: it extends days, not data. This add-on extends an existing unlimited plan, so what you choose is extra days, not gigabytes. Your original plan keeps its own speed and fair-use terms while it runs on. Pick the number of days you still need from the options in the table above, matched to how much longer you are travelling.

Unlimited Extra Days is the right choice only if you have an active unlimited eSIM and want to keep that same line running a little longer. It adds days to the plan you hold. It does not add a new country, a phone number or a separate data package, so if you are travelling somewhere else, a fresh eSIM is the right move.

An eSIM is a digital SIM card already built into your phone — nothing arrives by post and you never open the SIM tray. You buy a plan, save it to your phone over Wi-Fi, and it sits next to your usual line. At your destination you simply choose which line carries your mobile data. Your own number stays in the phone and stays reachable, and when you get home you switch the travel line off again.

Yes, using the eSIM that is already on your phone — no second eSIM and no new QR code. Enter your order number on our top-up page and pick a package. Top up while your plan is still running and it continues without a break, so you do not have to hunt for Wi-Fi abroad. On the data plans you add gigabytes; on the unlimited plans you add days.

Only phones with the chip built in can use an eSIM: on iPhone that is every model from the XS and XR onwards, on Samsung the Galaxy S models from the S20 plus the Note 20 and the Fold and Flip range, and on Google every Pixel from the Pixel 3. For other Android phones there is no rule of thumb — plenty of budget and mid-range models still have no eSIM even when they are brand new, and some Asian variants do not have one despite carrying the same name. Check your exact model under "Check compatibility" further up this page: if it is not on the list, it cannot do eSIM. Your phone also must not be locked to one operator.

Your Simbye eSIM QR code is delivered instantly by email right after payment — no waiting, no shipping. The whole process from buying online to activation takes under 2 minutes, so you can set up your travel eSIM at home and land already connected.

Most travel data eSIMs are data-only, so you simply keep your own number for WhatsApp, iMessage and app-based calls. But Simbye goes further: we also offer eSIMs that include a real phone number — a US eSIM with a +1 number, a UK eSIM with a +44 number, and country eSIMs that include calls and a real phone number. With these eSIMs you can call, text and register WhatsApp, Telegram or any app, and the codes arrive right on your phone — no extra app needed. On top of that, we offer virtual numbers from the USA, the UK, the Netherlands and Australia — your own real number, no SIM card needed. SMS and verification codes show up in the Simbye app and on your order page on simbye.com; with the optional calls add-on, the UK, Dutch and Australian numbers also receive incoming calls in the Simbye app.

Yes, you need to enable data roaming in your device settings for your Simbye eSIM to work properly. Don't worry – with Simbye you won't face any roaming charges! Simply go to your phone's settings, select your Simbye eSIM, and turn on data roaming. You'll be connected instantly without extra fees.

On the data plans, the connection simply stops when your allowance is used up — no surprise charges and nothing renews by itself. On the unlimited plans you stay online, just slower: once the daily full-speed allowance is used up you keep browsing at a reduced speed, and the next day starts at full speed again. You can top up at any time.

Yes. WhatsApp, FaceTime, Zoom and video calls all run over the data connection. On the data plans you get full speed for that. On the unlimited plans there is a daily full-speed allowance — after that it is still enough for messages and voice calls, but video may stutter. The next day starts at full speed again.

Yes, absolutely! Your WhatsApp number stays the same because it's linked to your original phone number, not your SIM card. With Simbye eSIM providing data, you can continue using WhatsApp with your existing number and contacts worldwide. Stay connected without changing a thing!

Installing your Simbye eSIM takes less than 60 seconds — one of the fastest setups of any eSIM provider! After buying your eSIM online, you receive a QR code via email. Scan it with your phone camera (iPhone: Settings → Cellular → Add eSIM; Samsung: Settings → Connections → SIM Manager), follow the prompts, and your eSIM activates instantly. No app download required — though our Simbye app makes managing multiple eSIMs even easier.

You need WiFi to install your eSIM, so we recommend setting it up shortly before your departure while you're still at home. Alternatively, you can wait until you arrive at your destination and connect to airport or hotel WiFi. Just remember – you'll need an internet connection for the initial setup, but after that, you're good to go!

Most Simbye eSIMs support hotspot/tethering: simply enable hotspot in your device settings and connect your laptop, tablet or other devices. Keep in mind that hotspot usage counts toward your data package, and a few unlimited plans limit or exclude hotspot — you’ll find the details on each product page.

Open the Simbye app and tap My eSIMs — your remaining data is right there. Without the app, go to simbye.com/pages/plans and enter your order number and email. On Orange plans you can also dial #123# straight from your phone. The figures come from the network, so they can lag a little behind your actual use.

Nothing is lost. Your QR code stays in your order email, in the Simbye app under My eSIMs, and on simbye.com/pages/plans with your order number and email — so you can pull it up again whenever you need it. Once a profile is installed it stays on your phone. A few plans allow one installation only; that is noted with the plan.

Yes — 5% of what you spend comes back as credit in your Simbye wallet. It lands there by itself, whether you buy in the app or on the website. You can put that credit towards your next plan or use it when you top up an existing eSIM. Nothing to claim, nothing to activate.

Data plans are not throttled — you keep full speed until your volume is used up. Unlimited plans have a fair-use threshold: once you pass it you stay connected, just slower. Maps, messengers, email and music keep working; high-resolution streaming does not. The exact threshold is stated with the plan you are looking at.

Yes — the eSIM sits next to the SIM you already have, so your own number stays active and calls and texts still come through. One thing to watch: your phone still places outgoing calls over your main SIM, at your home provider's rates. For talking, use WhatsApp or a similar app over your eSIM data instead.

Your validity starts the moment the eSIM first connects to a network at your destination — not when you buy it, and not when you install it. That is why you can order weeks ahead and set everything up at home in peace. A few plans should only be installed after you arrive; if yours is one of them, your delivery email says so.

Ready for Unlimited Extra Days?

Pick a plan, tap the link in your email — you are online from the moment you land.

Choose a plan

Prepaid, no contract. The plan simply ends on its own.