Ubigi Promo Code EDC10 applies a 10% discount to Ubigi travel eSIM data plans, taken off the plan price at checkout. If you have never bought an eSIM before, the discount is the easy part — the code goes into a field, the total drops, you pay. The part that trips up first-time buyers is everything either side of it: whether your phone can even use the product, which of the three plan types you should be looking at, and when to install the profile. This guide walks the whole sequence in order, from the checks you do before you open the store to the moment mobile data appears on your screen in another country.

An eSIM is a digital SIM profile you install on a compatible device instead of collecting a plastic card. There is no shipping, no envelope, no shop counter. After payment, Ubigi emails installation instructions and a QR code, usually within a few minutes, and you scan or tap your way through the setup on the handset itself.

Ubigi is the consumer travel eSIM brand of Transatel, a French mobile network operator and now a subsidiary of the Japanese telecoms group NTT. That matters more than a corporate footnote usually does. A large share of the eSIM market is made up of resellers who buy wholesale capacity and repackage it under their own branding. Transatel runs its own core network and holds direct agreements with carriers, which is why Ubigi tends to score well on network quality in independent testing rather than on price. The same company also supplies embedded connectivity for connected cars from manufacturers including BMW, Toyota and Jaguar Land Rover, though the plans EDC10 applies to are the consumer travel plans sold through the Ubigi eSIM store and the Ubigi mobile app.

Coverage extends across 200 or more destinations. One important consequence for a new user: the profile is reusable. You do not need a fresh eSIM for every trip, and you will not fill up your phone's limited eSIM slots after three holidays.

Do this first, before you look at plans or codes. An eSIM only works on hardware that supports it. Recent iPhones, recent iPads, most flagship Android handsets and Windows 11 machines with cellular modems generally do. Budget Android phones and older devices frequently do not. There is also a second trap: a handset still locked to a carrier may refuse to install a third-party profile even when the hardware itself is capable.

Ubigi publishes a compatibility list. Check your exact model against it. Buying a plan your phone cannot install is the single most common way to waste money on an eSIM, and a 10% discount does nothing to soften that outcome — you have simply paid 90% of the price for something unusable. If you are unsure whether your phone is carrier-locked, resolve that question before purchase rather than after.

There are two routes. The official Ubigi eSIM store on the web, and the Ubigi mobile app. Both sell the same consumer travel plans and both have a promo code field at checkout. The website purchase flow feels dated next to newer rivals, and the app is generally the smoother experience, so if you are setting up for the first time and have the choice, the app is worth starting with.

Whichever you pick, you will create an account as part of the process. Standard advice applies here and it is worth following: use an email address you can actually access while travelling, because your installation instructions and QR code arrive there. If you lose access to that inbox, retrieving setup details becomes harder than it needs to be. Use a real, current address rather than a throwaway one, and make sure the address has no typos before you submit payment.

The code changes the price and nothing else. Data allowance, validity window and covered destinations are all set by the plan you selected. So choose the plan on its merits first, then apply the code.

The cheapest option and the right choice for a single-destination trip. Allowances and durations vary by country, and pricing differs substantially between destinations depending on Transatel's wholesale costs there. Japan is a particularly strong market for Ubigi because it runs over NTT Docomo, giving coverage well beyond the major cities.

Sensible for multi-country itineraries. One Europe or Asia bundle avoids buying and juggling several separate country plans, and usually works out cheaper than the sum of its parts. Read the destination list line by line, though. Regional definitions differ between providers, and the country you assumed was included may not be.

The most expensive tier, spanning a large share of the catalogue at once. These suit long multi-continent trips or frequent travellers who find buying per-destination tedious. This is also where a percentage discount is worth the most in absolute terms — 10% off a global monthly plan returns considerably more than 10% off a three-day country plan.

Two things to know about how the code behaves. It applies to the plan price, calculated before any local taxes, so the figure you see reduced is the plan line rather than the final tax-inclusive total. And promotional codes are normally limited to one per transaction and cannot be stacked with another active offer — if you have a second code, you are choosing between them, not combining them. The code also does not extend validity, add data, or upgrade a capped plan to an unlimited one.

If the total does not change after you apply the code, stop before paying. Re-enter it without stray spaces, check you are on the consumer travel plan checkout, and confirm no other offer is already attached to the order.

Activation requires an internet connection — which is exactly what you do not have when you land in a new country. Install the profile at home, on reliable Wi-Fi, while you still have time to read an error message and ask a question about it. Doing it at the airport arrivals hall is how a smooth purchase turns into a stressful one.

The plans are data-only. There is no local phone number, so you cannot receive SMS verification codes or make standard voice calls on the Ubigi line. Messaging and calling apps that run over data work normally. This is standard across the travel eSIM sector rather than a Ubigi quirk, but it catches people out when a bank sends a one-time passcode to a SIM sitting in a drawer at home. Plan for that before you travel.

Unlimited plans are governed by a fair use policy, meaning speeds can be managed after a certain volume of high-speed data. The thresholds vary by plan and are not always prominently displayed, so read the plan detail page rather than assuming unlimited means unmetered at full speed indefinitely.

Support is the weakest part of the package. It runs through email and a help centre rather than live chat or telephone, and reviewers consistently report slower responses than the sector average. That is another argument for installing early: if something goes wrong, you may be waiting on an email reply.

On the practical side, there is no auto-renewal, so each destination plan must be activated manually — no surprise charges, but also no automatic continuation. Top-ups can be added to an existing plan rather than starting over, which is useful once you are already abroad and running low.

If you have already decided on Ubigi, EDC10 costs nothing to apply and reduces a price you were going to pay anyway. A 10% reduction means you pay 90% of the plan price, and there is no reason to skip that.

The more useful question for a newcomer is whether Ubigi suits the trip in front of you. It is a genuinely good network with unusually solid infrastructure behind it, and for Japan, for Europe, and for anyone who travels often enough to value the single reusable profile, it earns its price. It is rarely the cheapest option for mainstream tourist destinations, because what you are paying for is network quality. For a short city break where you will use a couple of gigabytes, cheaper providers exist and 10% will not close that gap. Choose the provider on coverage and price for your specific destination first, then apply the code once the decision is made.

Promotional terms, eligibility and values are set by the provider and can change at any time. Always confirm the current terms on the official site before signing up or completing a purchase.