カザフスタン eSIM

2018年後半または2019年初頭以降に発売されたほとんどの主要スマートフォンは、EastESIM技術と完全に互換性があり、シームレスな旅行接続を可能にします。これには、iPhone XS以降のすべてのiPhone、Google Pixel 3およびその後のPixelモデル、Samsung Galaxy S20シリーズおよびその後継機などの人気モデルが含まれます。電話以外にも、ますます多くのタブレットやスマートウォッチがeSIMをサポートしており、旅行中の接続をさらに便利にしています。

2019年以降に発売されたほとんどすべての主要スマートフォンモデルはeSIM機能を搭載しており、EastESIMを利用した国際旅行に理想的なソリューションとなっています。これには、iPhone XS、iPhone 11、iPhone 12、iPhone 13、iPhone 14、iPhone 15シリーズ、さらにGoogle Pixel 3以降のモデル、Samsung Galaxy S20以降の多くのモデルなど、幅広いデバイスが含まれます。これにより、ほとんどの旅行者が簡単に接続を維持できます。

いいえ、できません。eSIMは一度しかインストールできず、最初にインストールされたデバイスにロックされます。他の携帯電話に移動したり、後で再スキャンしたり、再インストールしたりすることはできません。また、一度インストールされると返金不可となります。今後も使用する予定のデバイスにeSIMをインストールしてください。デバイスを切り替える際にサポートが必要な場合は弊社のサポートチームにご連絡ください。

Yes. With Cellesim you top up the eSIM you already installed. You do not scan a new QR code, you do not install a second profile, and your phone number setup does not change.

Open the Cellesim app or your account page, pick a top-up for the eSIM you are using, and the data is added to the same line. The validity period is extended at the same time, so a 7-day plan topped up on day 5 keeps running instead of expiring.

This matters most when you are already travelling: running out of data usually means you have no connection to buy more with. Because the top-up lands on the existing profile, it works as soon as it is processed, without Wi-Fi and without reinstalling anything.

If an eSIM does not work and you have not used the data, we refund it in full to the original payment method. There is no restocking fee and you do not need to return anything.

In practice we check the line on the carrier side first, because most failures are a stuck data session that we can restart remotely in a few minutes. If the line genuinely cannot be made to work in your location, we refund.

To be straightforward about the limit: once a plan has been used, a refund is no longer possible, because the data has already been bought from the network operator on your behalf. In that case we look at a replacement instead. If a plan was never activated, the refund is simple.

Yes. Every Cellesim account has a wallet balance, and you earn 5 USD of store credit for each friend who buys their first eSIM with your referral link.

The credit lands in your wallet automatically once their order completes, and it is applied to your next purchase — you do not need a coupon code. Wallet balance never expires.

Your referral link is in your account. There is no limit on how many people you can refer, and the person you refer also gets a discount on their first order.

Cellesim includes a free VPN with every active eSIM. It is not an add-on, a trial, or a paid upgrade: as long as you have an eSIM plan that is still valid, the VPN is available at no extra charge.

This is unusual in the travel eSIM market. Most providers sell data only, and you buy a VPN separately from a VPN company. A few bundle a paid VPN subscription. With Cellesim the data plan and the VPN come from the same purchase.

It matters because mobile data abroad does not solve everything. Public Wi-Fi in airports and hotels is unencrypted, some services are restricted depending on the country you are connected from, and banking apps behave differently on foreign networks. The VPN covers that part.

Almost always, yes — usually by an order of magnitude. Standard carrier roaming outside your home region is commonly billed per megabyte or as a daily pass of 10-15 USD. A travel eSIM is a prepaid data plan bought at local wholesale rates.

A concrete comparison: a 5 GB / 30-day plan for a single country averages about 28 USD across our catalogue. A daily roaming pass at 10 USD reaches that after three days, and keeps charging.

The exception is regional roaming that your carrier already includes for free — EU-to-EU roaming for EU customers, for example. If your plan covers the country you are visiting at no extra cost, use it. Everywhere else, prepaid data is cheaper.

Less than most guides tell you. Across 278 of our own travel eSIMs, the median customer used 96 MB per day. The average was 158 MB, and even heavy users at the 90th percentile stayed under 350 MB a day.

That means for a one-week trip:

• 1 GB covers a typical traveller — maps, messaging, occasional browsing
• 3 GB is comfortable if you post photos and videos daily
• 5 GB or more only if you stream video or work off mobile data

The common advice of "1 GB per day" reflects home usage on Wi-Fi-free devices, not travel. Most hotels, cafes and airports still give you Wi-Fi for the heavy things. Buy small, and top up if you are wrong — that is cheaper than paying for data you never use.

Buy and install before you fly. Activate after you land. These are two different steps and confusing them is the most common mistake.

Installing writes the profile onto your phone and needs an internet connection — which you have at home and may not have at the airport. Activation happens automatically the first time the eSIM connects to a network at your destination, and that is when the validity period starts counting.

So installing early costs you nothing: a 7-day plan installed three days before departure still gives you 7 full days from the moment you land. Waiting until you arrive means standing in an arrivals hall trying to find Wi-Fi to install a product you already paid for.

A local SIM bought in-country is often cheaper per gigabyte. A travel eSIM is cheaper in total cost for most trips, once you count what the local SIM actually requires.

Buying locally usually means: finding an official store rather than an airport kiosk with tourist pricing, showing your passport for registration (mandatory in many countries), losing your own number while the SIM is in the phone, and spending an hour of a short trip doing it.

A local SIM makes clear sense for stays of a month or more, or if you need a local phone number for deliveries and bookings. For a trip of one to three weeks, the eSIM usually wins on total cost including your time — and you keep your own number active for banking codes.

No. A regional Europe plan works across the whole covered area on one profile. You do not switch anything at the border, and you do not install a second eSIM.

Whether regional is the right choice depends on how many countries you visit. In our catalogue a 5 GB / 30-day regional plan averages about 38 USD, while the same size single-country plan averages about 28 USD. So regional costs roughly a third more.

The rule that follows: one or two countries, buy single-country plans. Three or more, buy regional. Below three countries you pay a premium for coverage you will not use.

Per country is cheaper per plan; regional is cheaper once you cross about three countries.

Measured across our own catalogue, a 5 GB / 30-day plan averages 28 USD for a single country and 38 USD for a regional plan. The regional premium is roughly 37 percent.

So two single-country plans (about 56 USD) already cost more than one regional plan. But you rarely need a full 5 GB in each of two countries — two 1 GB plans would be far cheaper than a 5 GB regional plan. The honest answer is to size the data first, then compare, rather than assuming regional is automatically better value.

The four that catch people out:

• Validity starting at purchase instead of activation. Some providers start the clock when you pay. Check that the period starts on first network connection.
• Throttling after a "fair use" threshold on unlimited plans. Unlimited often means full speed to a cap, then 512 kbps or slower.
• Coverage that excludes part of a region. A plan named after an island or a region may cover only part of it politically or technically.
• Top-ups priced above the original plan. Running out mid-trip can cost more per gigabyte than the first purchase.

None of these appear on the price tag. They are worth checking before buying, whoever you buy from.

Yes, with two checks worth doing.

The eSIM itself is safe by design. A profile is a carrier credential written to a secure element in your phone. It cannot read your data, your messages or your other SIM. Deleting it removes it completely.

The purchase is where care is needed. Buy from a provider that shows the exact networks and countries a plan covers before payment, states its refund position clearly, and can be reached by a human when something breaks. A cheap plan from a seller who disappears when the line does not connect is the real risk, not the technology.

One practical safeguard: a QR code can normally be installed only once. Do not share it, and do not buy from anyone reselling codes second-hand.