If you just want the answer: the best eSIM for Greece, in my view, is Sim Local eSIM. I’ll explain exactly why below, but the short version is that it runs on two of Greece’s strongest networks, gives you genuinely generous unlimited data rather than the token amount some competitors offer, and backs it up with real support, including two physical stores at Athens Airport if you ever need a human being to help you out.
I’ve been to Greece five times now, to Athens, Thessaloniki, Halkidiki, Paxos, Ios and Santorini, and I’ve used eSIMs on every one of those trips as well as on visits to the United States, Georgia and Botswana. Sun-baked ruins, family friends I hadn’t seen in years, press trips built around vineyards and beaches, a villa on a tiny island. Every single one of those trips has come with the same small, nagging worry before I land: will I actually be connected the moment I get there.
That worry is a bigger deal than people admit. It’s not just about posting a nice photo. It’s about needing a taxi app to work in Athens arrivals, or trusting your car’s sat nav on the switchback roads above a Halkidiki beach, or being able to tell your group in Ios which taverna you’ve all ended up in. Having researched what’s out there for my own next trip, Sim Local eSIM is the one I’d choose, and here’s the full picture of why.
Why Do You Need an eSIM for Greece?
I used to roam. Most of us did, before eSIMs became this easy. And the numbers on that are honestly a bit grim. UK networks lost their free EU roaming after Brexit, and unless you’re with one of the few providers that still include it, you’re looking at a daily charge just to use your phone as normal, on top of the risk of a genuinely nasty bill if you go over any data caps.
US travellers have it worse again, with day passes routinely running around ten dollars a day and painfully slow speeds once you’ve used your allowance. An eSIM sidesteps all of that. You buy exactly the data you need before you go, it activates in minutes, and you’re paying local rates instead of tourist ones.
Where in Greece Has Connectivity Mattered Most to Me?
My first stop on my most recent trip, and I landed with almost no time to spare. I had older family friends waiting to meet me and needed to get myself across the city and in touch with them straight away, no faffing about trying to find airport wifi. I spent three days exploring the city properly after that, and it’s the kind of place where having maps and messages working instantly, right from arrivals, genuinely changes how the first hour of a trip feels.
A press trip, and one where I ate an enormous amount of very good food. Signal here was fine, generally, though as with a lot of press trips you’re moving between venues on a schedule and you don’t have the luxury of losing five minutes waiting for a map to load.
Another press trip, this time researching an article about the region’s beaches, which meant a hire car and a lot of driving between coves and headlands. This is where things got noticeably patchier. Rural, coastal Greece is beautiful precisely because it isn’t overdeveloped, but that also means the signal isn’t always there when you most need it, and I most needed it, constantly, for directions.
We stayed in a villa right on the water, reachable only by some genuinely hair-raising narrow roads. Good data mattered enormously here, both for navigating those roads and for basic peace of mind on a small island where you can’t just wander into a phone shop if something goes wrong. The connection wasn’t great on that trip, which is exactly the kind of experience that makes you appreciate a reliable eSIM plan on your next one.
A livelier island, and one where I was exploring with a group. Between working out where everyone was, sharing directions, and generally trying to keep a group holiday running smoothly, this was a trip that lived and died by everyone’s phones actually working.
Beautiful and, as anyone who’s been will tell you, absolutely rammed in peak season. I had a hire car and spent my time visiting vineyards across the island, which meant relying on data for directions in a place where every network on the island is fighting for bandwidth against thousands of other tourists trying to do exactly the same thing.
Why Is Sim Local the Best eSIM for Greece?
Every one of those trips has taught me the same lesson, that connectivity in Greece is genuinely patchy in places, and that the busiest tourist spots can be just as frustrating for data as the quietest islands. So for my next trip, I’ve been looking properly at what’s out there, and the one that keeps coming out on top is Sim Local eSIM.
A few things stand out. Sim Local’s Greece plans run on Vodafone and Wind, two of the country’s strongest networks, rather than some unnamed budget carrier, which matters when you’re relying on a signal in places like Halkidiki or Paxos where coverage isn’t a given. Hotspot and tethering is included at no extra cost, so if you’re travelling with a partner or sharing a car with your group, one eSIM can cover more than just your own phone.
Sim Local has also been doing this a long time, over 15 years, and has connected more than 4 million customers, which counts for a lot in an industry with a lot of fly-by-night operators. If you’d rather speak to a real person, they have two physical stores at Athens Airport itself, one in the arrivals area and one in the baggage hall, so if you need help buying or installing your eSIM the moment you land, there’s someone there to walk you through it. And if something genuinely doesn’t work for you, Sim Local offers no-quibble refunds, with support available around the clock over WhatsApp or email.
Two other things worth knowing. Some Sim Local plans, depending on the destination, include calls and texts as well as data, which is a genuine point of difference from providers who only ever offer data. And if Greece is just one stop on a longer trip, Sim Local also sells regional and global eSIMs, so you can cover several countries on a single plan rather than juggling a new eSIM for every border you cross.
Ready to sort your connectivity before you go? You can browse the full range of Sim Local eSIM plans for Greece here.
How Do You Install a Sim Local eSIM for Greece?
This is the part that puts people off eSIMs before they’ve even tried one, and it really shouldn’t. I’ve now actually downloaded and set up a Sim Local eSIM myself, and it was genuinely one of the easiest setups I’ve had. In the past, using other eSIMs, I’ve found myself completely confused about where to go in my phone’s settings and which toggles needed to be on or off. This time I got an email straight away with several different ways to set it up.
I opened the email on my laptop so I could scan the QR code with my iPhone 15, and the process popped up on my phone screen automatically, guiding me through it screen by screen. It took hardly any time at all and was so straightforward, honestly a bit of a relief after past experiences. There are also separate guides for iPhone and Android, plus a checklist and FAQs if you want to double check anything as you go.
Here’s the process in brief:
- Buy your plan online. Choose your Sim Local Greece plan and pay through their website or app. You’ll get your eSIM details, including a QR code, by email almost immediately.
- Scan the QR code. On an iPhone, go to Settings, then Mobile Service (or Cellular), then Add eSIM, and scan the code. Android phones have an equivalent option, usually under Network and Internet settings.
- Let it install. Your phone will confirm the eSIM has been added. This usually takes seconds.
- Label it and set your preferences. Give the new eSIM a name like “Greece” so you can tell it apart from your home number, and set it as your data line while keeping your home SIM active for calls and texts if you want to stay reachable on your usual number.
- Turn on data roaming for the eSIM. This is the step people most often miss. Without it switched on for the new eSIM specifically, you won’t get any data even though it’s installed.
- Activate on arrival. Most Sim Local plans activate automatically the first time you connect to a network in Greece, so your data is ready the moment you land.
If you’d rather have someone do this with you in person, that’s exactly what the Sim Local stores at Athens Airport are there for.
What Speeds Can You Expect From an eSIM in Greece?
It’s worth being realistic here rather than promising the earth. Vodafone and Wind, the two networks Sim Local uses in Greece, both run strong 4G coverage across Athens, Thessaloniki and the other major cities, with 5G rolling out steadily in built-up areas. On the islands and in more rural spots, coverage generally holds up well in towns and along main routes, but can drop off in remote corners, deep countryside, or in the hills, which matches my own experience of patchier signal in places like Halkidiki and Paxos regardless of provider.
No eSIM, from any company, can promise a perfect signal absolutely everywhere in Greece. What a strong network gives you is the best realistic chance of staying connected in the places that matter, and a plan generous enough that a busy island in August, like Santorini, doesn’t leave you throttled by lunchtime.
Which Sim Local Plan Should You Choose for Greece?
Sim Local’s Greece range runs from small data-only bundles right up to two unlimited options, so the plan really depends on how you travel. If you’re doing what I did in Halkidiki and Santorini, driving between beaches or vineyards all day with maps constantly open, you’ll want more headroom than someone who’s mostly checking messages over dinner.
| Plan | Unlimited | Unlimited PRO |
|---|---|---|
| Daily high-speed allowance | 5GB full speed per day | 10GB full speed per day |
| Best for | Most travellers | Heavy data users |
| Allowance reset | Every 24 hours from first use | Every 24 hours from first use |
| Hotspot and tethering | Included, within daily allowance | Included, within daily allowance |
| Ideal traveller | City breaks, holidaymakers, social media use | Remote workers, content creators, heavy hotspot users |
Sim Local also does straightforward fixed-data plans if unlimited data isn’t something you need, in 1GB, 3GB, 5GB, 10GB and 20GB bundles, and plans across 3, 7, 15 and 30 day lengths, so a long island-hopping trip and a quick city break can both be catered for properly.
Get 5% off any Sim Local eSIM plan for Greece with my code ADVENTURER.
How Does Sim Local Compare to Other eSIMs for Greece?
What struck me most, researching this, is just how much more generous Sim Local’s unlimited allowance is before it throttles you. A lot of “unlimited” eSIMs only give you a full-speed gigabyte or two before slowing you right down for the rest of the day.
| Unlimited plan | Sim Local | Airalo | Saily | Holafly |
|---|---|---|---|---|
| Unlimited PRO plan | 10GB/day | 3GB/day | 5GB/day | 3-5GB/day* |
| Unlimited Lite plan | 5GB/day | 3GB/day | 5GB/day | 3-5GB/day* |
*Varies based on destination
Who Is a Sim Local eSIM Best For?
- Families travelling with kids who need a connection they can rely on, not one that drops out on a coastal drive.
- Solo travellers who want affordable data without the worry of a roaming bill following them home.
- First-time eSIM users who want something set up in minutes, not an afternoon of fiddling with settings.
- Digital nomads and longer stays, with plans up to 30 days and the option to top up.
What Are the Most Common Questions About the Best eSIM for Greece?
Is Sim Local’s data really unlimited?
Yes. Sim Local’s Unlimited plans include either 5GB or 10GB a day of high-speed data. Once you’ve used your daily allowance, you’ll continue browsing at a reduced speed of up to 1Mbps rather than losing your connection altogether, and your full-speed allowance resets automatically every 24 hours.
What happens after I use my daily high-speed data?
Your connection doesn’t stop. You’ll continue at a reduced speed for the rest of the day, and your full high-speed allowance resets 24 hours after you first activated the plan.
Which Sim Local Unlimited plan should I choose?
The Unlimited plan, with 5GB a day, suits most travellers, covering maps, messaging, social media and everyday browsing. Unlimited PRO, with 10GB a day, is better suited to heavier use, streaming video, frequent calls, or working remotely while you travel.
How is Sim Local different from other unlimited eSIMs?
Many unlimited eSIM providers only give you 1GB to 3GB of high-speed data a day before reducing your speeds. Sim Local gives you up to 5GB or 10GB a day, which in practice means a lot more freedom for navigation, streaming and everyday use without hitting that wall.
So, What Is the Best eSIM for Greece?
Based on everywhere I’ve travelled to in Greece, from the busy streets of Athens to the quiet roads of Paxos, connectivity has made or broken how relaxed those trips felt. Having weighed up the networks, the data allowances, and the support behind each provider, Sim Local eSIM is the one I’d choose for my own next trip, and the one I’d point any reader towards.
Grab your own Greece eSIM and get 5% off with my code ADVENTURER at Sim Local eSIM.
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Amanda O’Brien is the creator and editor of The Boutique Adventurer. She has visited 80 countries and is a member of the British Guild of Travel Writers as well as the IFTWTA. She is passionate about wine had has just completed Level 3 of the WSET. Born in Australia, she lives in London.