コスパ重視のeSIM
短期旅行で数ギガのデータを確実に手に入れる、最も安価な方法です。見出しの割引表示ではなく、実際の1ギガあたりの料金でランキングしています。週末旅行や、主に地図とメッセージ程度しか使わない方に向いています。
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Unlimited daily data plans available in 165+ countries, installed via QR code once and reusable across multiple trips.
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eSIM marketplace aggregating 30+ providers including Airalo and Ubigi, enabling price comparison across destinations before purchase.
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Global mobile network partnerships with ultra-low entry pricing starting at $2
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Free WiFi access to 20 million hotspots plus affordable eSIM data in 190+ countries starting at $2/GB.
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Instant activation in 190+ destinations with regional packages up to 30 days and multi-network coverage.
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Global WiFiというポケットWi-Fiルーターのブランドで知られる日本のVision Inc.グループ傘下のVision Mobile Hawaiiが運営しており、500MBから50GBまでの固定データパッケージと、7日から365日までの有効期限を用意している。実績のある旅行通信企業が背後にいることは、正体不明の再販業者との違いとして評価できる点だ。
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Flat-rate eSIM covering 90+ countries with phone number and browsing protection included
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Budget-focused eSIM with simple setup and affordable data coverage across 90+ countries.
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Prepaid eSIM marketplace with plans for 200+ destinations starting from a few dollars, with built-in usage management.
Frequently asked questions
What is the best way to find the absolute lowest price per gigabyte?
You can use a marketplace like MobiMatter to compare different providers before you buy. Some providers also offer very low rates on larger regional bundles, such as certain Asia plans that drop to around $1.10 per GB.
Do I have to buy a new eSIM every time I travel?
Not necessarily. Some providers offer plans that you can install once and then reuse across multiple different trips.
Can I find a plan that lets me pay only for the data I actually consume?
Yes. Some services use a pay-as-you-go model where you buy the eSIM once and then only pay for the specific megabytes you use. Others offer flexible top-up options for data-only plans.
Are there options if I need more than just a basic data connection?
Some packages include extra features like a bundled phone number at no additional charge. Other providers focus on unlimited daily or total data plans for users who need much more than a few gigabytes.
How do these eSIMs compare to buying a local SIM card at the airport?
While some services allow you to purchase local carrier plans through an app or airport kiosks, many eSIMs avoid roaming markups by using direct partnerships with local operators. This often makes them a more convenient way to get data for short trips without searching for a physical shop.