Airalo vs Holafly for Japan: Which eSIM Should You Choose?

Airalo vs Holafly for Japan: Prices, Unlimited Data, Speed Limits, Hotspot Rules, and Networks

Airalo and Holafly are two of the eSIM providers travelers commonly compare when planning a trip to Japan.

Both list KDDI and SoftBank as supported networks in Japan, and both offer unlimited-data options.

The simplest way to separate them is this: Airalo is better suited to travelers who want to choose a plan around their expected data use, while Holafly is better suited to travelers who would rather not think about a data allowance on their phone.

Airalo also sells unlimited plans, and the price gap between Airalo Unlimited and Holafly Unlimited can be surprisingly small. Airalo’s bigger advantage is that you can also choose a set amount of data, such as 5GB, 10GB, or 20GB, instead of paying for unlimited data you may not need. Holafly’s appeal is the opposite: you mostly choose the number of days and stop worrying about how many gigabytes remain.

There are also important differences in how unlimited data works and in hotspot use, meaning sharing your phone’s mobile data with a laptop, tablet, or another phone. This guide compares the two from the traveler’s point of view: which one makes more sense for your actual trip?

Contents

1. Quick Verdict — Airalo or Holafly for Japan?

Project Torii Quick Verdict
Airalo → 🟢 Strong Choice
Holafly → 🟡 Strong Choice — for Unlimited-First Travelers

Both are strong options for Japan. The important difference is why you would choose each one.

Choose Airalo if you:

• can roughly estimate whether you need 5GB, 10GB, or a similar amount

• do not want to pay for more data than you are likely to use

• want unlimited data to remain an option

• prefer an unlimited plan with a clearly stated high-speed allowance

• expect to share your phone’s connection with a laptop or tablet fairly often

• value having more plan choices

Choose Holafly if you:

• do not want to estimate how many gigabytes you will need

• expect to use a lot of video or social media directly on your phone

• do not want to keep checking how much data remains

• like the simplicity of choosing mainly by trip length

• do not need heavy laptop tethering

Airalo = choose the amount that fits your trip
Holafly = avoid choosing a data allowance at all

For unlimited plans, there is another major difference. Under Airalo’s default Fair Use Policy, you receive 3GB of high-speed data per 24-hour period. After that, speeds are reduced to up to 1Mbps until the next 24-hour cycle. Holafly does not publish a guaranteed fixed high-speed allowance such as “3GB per day” for its Japan Unlimited plan. Holafly also limits hotspot sharing in Japan to 1GB per day.

Unlimited data on your phone is not the same thing as unlimited hotspot data.

2. Airalo vs Holafly at a Glance

Feature	Airalo Japan	Holafly Japan
Plans with a set amount of data, such as 5GB or 10GB	Yes	Generally no
Unlimited data	Yes	Yes
Networks in Japan	KDDI / SoftBank	KDDI / SoftBank
Unlimited high-speed data	Default FUP: 3GB / 24 hours*	No published fixed guarantee
After Airalo’s allowance	Up to 1Mbps*	—
Fair Use Policy	Yes	Yes
Hotspot / tethering	Yes	Yes
Separate hotspot-only allowance	No separate small Airalo cap*	1GB / day
Japanese phone number	No	No
Conventional voice calls / SMS	No	No
Main advantage	Plan flexibility	Unlimited simplicity

* A package-specific Airalo threshold takes precedence if one is shown in the package details. Hotspot traffic also counts toward the same Airalo high-speed allowance.

Choose in 30 seconds

• 5GB or 10GB will probably be enough → Airalo

• You want to keep the cost as low as possible → compare Airalo’s set-data plans first

• You want unlimited data but also want a clear high-speed figure → Airalo

• You want to stop thinking about remaining GB altogether → Holafly

• You expect to tether a laptop heavily → Airalo

• You mostly use data directly on your phone and want unlimited simplicity → Holafly is a strong fit

3. Price Comparison

The US-dollar reference prices below were captured on August 11, 2026. Product pages and plan structures were rechecked on August 28, 2026. Prices, currencies, packages, and promotions can change, so confirm the final checkout price before purchase.

Airalo — plans with a set amount of data

Data	Reference price
1GB	about US$4–4.50
3GB	about US$7.50–8
5GB	about US$10–10.50
10GB	about US$17–18
20GB	about US$25

Validity periods and prices can vary by package, region, promotion, and checkout view. This is where Airalo has its clearest price advantage. If you mainly use Maps, translation, and messaging and expect around 5GB to be enough, there may be no reason to pay for unlimited data.

Airalo’s real price advantage is the ability to buy roughly the amount of data you actually need.

Airalo — Unlimited

Duration	Reference price
3 days	US$11.50
5 days	US$17.00
7 days	US$27.00
10 days	US$34.50
15 days	about US$48–49
30 days	US$69.00

Under Airalo’s default Fair Use Policy, unlimited plans include 3GB of high-speed data per 24-hour period. After that, speeds are reduced to up to 1Mbps. The allowance resets every 24 hours from the eSIM activation time.

Holafly — Unlimited

Duration	Price
3 days	US$11.90
5 days	US$20.50
7 days	US$27.50
10 days	US$36.50
15 days	US$50.50
30 days	US$73.90

Holafly’s Japan product is built around unlimited data. The important point is that the unlimited-to-unlimited price gap is often fairly small. For seven days, Airalo was US$27.00 versus Holafly at US$27.50. For ten days, Airalo was US$34.50 versus Holafly at US$36.50 at the time of this evidence check.

So “Airalo is cheap and Holafly is expensive” is too simplistic. Airalo’s biggest price advantage appears when you do not need unlimited data in the first place.

4. Airalo Unlimited — 3GB of High-Speed Data per 24 Hours

Under Airalo’s default Fair Use Policy, you receive 3GB of high-speed data during each 24-hour cycle. Using the full 3GB does not cut off your connection. Instead, speeds are reduced to up to 1Mbps until the next cycle begins.

For example, if the eSIM activates at 10:00 a.m., the first high-speed period runs from 10:00 a.m. to 10:00 a.m. the next day. At that point, a new high-speed allowance begins. If your specific package shows a different high-speed threshold, follow the package details instead.

What can you still do at 1Mbps?

Airalo says lighter tasks such as messaging, email, Maps, and simple web browsing can still work after throttling. HD video, large uploads or downloads, and other data-heavy activities will be less comfortable.

A useful way to think about Airalo Unlimited is: you do not lose internet access when the high-speed allowance is used up, but the experience becomes much slower until the next reset.

5. How Holafly Unlimited Is Different

Holafly does not publish a fixed guaranteed figure such as “3GB of high-speed data per day” for its Japan Unlimited plan. At the same time, unlimited does not mean maximum speed is guaranteed at all times.

Holafly’s unlimited service remains subject to Fair Use Policy rules, and the local network provider may temporarily restrict speed or usage in cases of unusually heavy consumption or network-management needs. Holafly states that FUP-related speed restrictions are temporary and reset the following day.

Airalo → default FUP: 3GB of high-speed data per 24 hours, then up to 1Mbps
Holafly → no published fixed daily high-speed guarantee; temporary FUP restrictions may apply

Project Torii does not invent an “effective GB per day” figure for Holafly. If a provider does not publish the number, we do not present a guess as fact.

6. If 5GB, 10GB, or 20GB Is Enough, Which Is Better?

Trip length	Typical planning range
5 days	about 3GB
7 days	about 5GB
10 days	5–10GB
14 days	about 10GB
21 days	10–20GB

→ How much data do you need for Japan?

If you mainly use Maps, translation, messaging, and searches, and save most video for hotel Wi-Fi, you may not need unlimited data at all. In that case, Airalo’s ability to sell a plan close to your expected usage becomes much more valuable. Holafly becomes more attractive when you would rather not spend the trip wondering whether 10GB will be enough.

7. If You Want Unlimited Data, Which Is Better?

Duration	Airalo Unlimited	Holafly Unlimited
3 days	$11.50	$11.90
5 days	$17.00	$20.50
7 days	$27.00	$27.50
10 days	$34.50	$36.50
15 days	about $48–49	$50.50
30 days	$69.00	$73.90

The US-dollar reference prices shown are from the August 11, 2026 evidence check. Product structure was rechecked on August 28, 2026. Confirm the current checkout price before buying.

Reasons to choose Airalo

• The default high-speed allowance is clearly stated at 3GB per 24 hours

• After the allowance, data continues at up to 1Mbps

• Airalo does not impose a separate small hotspot-only allowance such as 1GB per day

Reasons to choose Holafly

• You do not have to manage a fixed total data allowance

• You do not want to keep checking how many GB remain

• The product is very simple if most of your use is directly on your smartphone

Want a clearly defined unlimited plan → Airalo
Want less data-allowance management → Holafly

8. Which Networks Do They Use in Japan?

Both providers list KDDI and SoftBank for Japan. That does not mean your phone uses both at the same time; it connects to one available network at a time. It also does not mean Airalo and Holafly will always have identical routing, priority, or real-world speed just because the underlying carrier names are the same.

→ Docomo vs au vs SoftBank in Japan

If rural or mountainous coverage is a major priority, also compare Ubigi, which offers access to NTT Docomo as well as KDDI in Japan.

→ Read the full Ubigi review

9. Which Is Faster?

Project Torii does not declare Airalo or Holafly the speed winner because there is not enough consistent evidence to generalize that one is always faster. Real-world speed depends on the connected network, location, time of day, congestion, buildings, underground environments, device, supported bands, roaming configuration, and Fair Use Policy.

We also do not take domestic speed-test results from KDDI or SoftBank and present them as if they were direct Airalo or Holafly speed tests.

10. What Is Hotspot? Which Is Better for a Laptop?

A mobile hotspot lets you share your phone’s mobile data connection with a laptop, tablet, or another phone over Wi-Fi. On iPhone, Apple calls this Personal Hotspot. It is also commonly called tethering.

Airalo

Airalo allows hotspot use. It does not impose a separate hotspot-only rule such as “1GB per day” on its unlimited plan. However, hotspot traffic still counts toward the same Airalo high-speed allowance. A laptop doing large downloads can therefore use up the 3GB high-speed allowance quickly.

No separate hotspot cap ≠ unlimited full-speed hotspot

Holafly

Holafly Japan limits hotspot sharing to 1GB per day. Your phone can use unlimited data, but you cannot share unlimited data with a laptop.

Best for frequent hotspot use: Airalo

If you regularly connect a laptop, tablet, or other travelers’ devices, Airalo is more flexible. Just remember that laptop traffic still uses the same high-speed allowance on Airalo Unlimited.

11. What About 5G?

Holafly

Holafly’s official Japan page lists 5G where available. Actual connection type still depends on location, network, device compatibility, and supported bands, so you may also connect over 4G / LTE.

Airalo

Airalo offers 5G-capable eSIMs, but Project Torii does not make a blanket claim that every current Airalo Japan local package is 5G-enabled. Airalo itself says 5G availability depends on the eSIM and coverage, so check the package details before purchase.

Holafly → Japan page explicitly lists 5G where available
Airalo → check the specific Japan package details

12. Shinkansen and Rural Japan

Because both providers list KDDI and SoftBank, there is no obvious network-name advantage between them. There is also not enough evidence to claim that Airalo is inherently better on the Shinkansen or that Holafly is inherently better in rural Japan. High-speed travel, tunnels, mountainous areas, cell-site handovers, congestion, and the train environment can all cause temporary slowdowns or dropouts. If rural coverage is a major priority, compare Ubigi as well.

13. Which Is Better for a 7-, 10-, or 14-Day Trip?

7 days

For a typical traveler using Maps, translation, messaging, searches, and moderate social media, around 5GB may be enough. If you want unlimited data, the price gap was tiny at the time of this review: Airalo at US$27 and Holafly at US$27.50.

Typical use → consider Airalo’s set-data plan
Unlimited with a clear high-speed allowance → Airalo Unlimited
Unlimited with less allowance management → Holafly

10 days

Project Torii’s typical planning range is about 5–10GB. If that sounds sufficient, compare Airalo’s set-data plans first. If you expect heavy social media or video use, do not trust hotel Wi-Fi, or simply cannot predict your usage, unlimited becomes more attractive. The reference unlimited prices were US$34.50 for Airalo and US$36.50 for Holafly.

Around 14 days

If about 10GB is enough, an Airalo set-data plan can still be a strong value. You can also compare 20GB for more headroom. Holafly becomes more attractive if you want to stop thinking about remaining data altogether. A longer trip does not automatically mean Holafly wins; your actual usage matters more than the number of days alone.

14. Which Is Better for Heavy Video and Social Media Use?

If most of the heavy use happens directly on your smartphone, Holafly keeps things simple because there is no fixed total data allowance to monitor or exhaust. Airalo Unlimited, however, still gives you 3GB of high-speed data per 24 hours under its default FUP, which is already a large amount for many travelers.

Want to know the daily high-speed figure → Airalo Unlimited
Want to think less about remaining GB → Holafly

Neither plan should be interpreted as a guarantee of maximum speed at all times.

15. Which Is Better If You Use a Laptop?

Airalo is the better starting point. Holafly Japan limits hotspot sharing to 1GB per day. That may be enough for email, Slack, and light browsing, but video calls, cloud sync, large file transfers, streaming, or software updates can consume 1GB quickly. Airalo has no separate 1GB/day hotspot allowance, although laptop traffic still counts toward the same high-speed allowance.

Airalo does not mean unlimited full-speed laptop data, but it is still the more flexible choice for heavier tethering.

16. Which Is Better for a First Trip to Japan?

It depends on what you find annoying. If your main problem is “I have no idea how many GB I need,” Holafly is simpler. If your main problem is “I do not want to pay for data I will never use,” Airalo gives you more control. A first trip to Japan does not automatically require unlimited data; many travelers who mainly use Maps, translation, and messaging can be comfortable with around 5–10GB.

→ How much data do you need for Japan?

17. Setup and Activation

The overall process is similar for both: buy the eSIM, install it, select it for mobile data after arriving in Japan, enable the required settings, and connect to a local network. For first-time eSIM users, installing it over stable Wi-Fi before departure is usually the easiest approach. Project Torii does not see enough of a setup difference to name a clear winner here.

18. Calls and SMS

For this comparison, treat the Airalo Japan local data plan and Holafly Japan as data-only. Neither gives you a Japanese 090 / 080-style phone number for conventional cellular calls and SMS. Apps such as WhatsApp, LINE, FaceTime, Messenger, and Signal still work over data. If you need to call a Japanese hotel or restaurant through the normal phone network, arrange a separate calling solution.

19. Refunds and Support

Airalo and Holafly both offer refunds in certain situations, but their rules differ. Airalo states that consumers may withdraw from a purchase within 14 days, provided the eSIM has not already been activated or used. For service failures attributable to Airalo, replacement or refund options may also apply under specific conditions. Holafly accepts refund requests for up to six months after purchase, with full or partial refund eligibility depending on activation, usage, device compatibility, connection issues, and other circumstances. If a connection problem occurs, contact the provider while the issue is happening rather than waiting until after your trip. Always check the latest refund policy before purchase.

20. Who Should Choose Airalo?

• You can roughly estimate whether you need 5GB, 10GB, or a similar amount

• You want to keep costs down

• You probably do not need unlimited data

• You still want unlimited as an option

• You prefer a clearly stated high-speed allowance

• You expect to tether a laptop frequently

• You value having more plan choices

Airalo’s biggest strength is flexibility: you can choose a plan that fits the way you travel.

21. Who Should Choose Holafly?

• You do not want to estimate how many GB you need

• You use a lot of data directly on your smartphone

• You watch video or use social media heavily

• You do not want to rely on hotel Wi-Fi

• You do not want to check remaining GB during the trip

• You like choosing mainly by trip duration

• You do not need heavy laptop hotspot use

Holafly’s biggest strength is simplicity: it removes much of the need to choose and manage a data allowance.

22. Project Torii Verdict

We do not name one Overall Winner. In line with the Project Torii eSIM Pillar, we do not believe there is one provider that is best for every traveler.

Airalo

Strong Choice
Best for Flexibility & Hotspot

Choose roughly the amount of data you need, or choose Unlimited with a clearly stated default 3GB / 24-hour high-speed allowance. Airalo is also more flexible for hotspot use. Its core advantage is choice.

Holafly

Strong Choice — for Unlimited-First Travelers
Best for Unlimited Simplicity

You do not have to manage a fixed total data allowance, and the product is easy to buy around trip length. For travelers who mostly use data directly on their phone and do not want to think about remaining GB, Holafly is extremely straightforward. Its core advantage is not having to choose a data allowance.

If you only remember one table

Your travel style	Project Torii choice
Around 5GB is enough	Airalo
Around 10GB is enough	Airalo
Around 20GB is enough	Airalo
You want the lowest likely cost	Compare Airalo set-data plans first
You want a clear high-speed figure on unlimited	Airalo
You expect heavy laptop hotspot use	Airalo
You want unlimited data mainly on your phone	Holafly
You have no idea how much data you will use	Holafly
You do not want to think about remaining GB	Holafly
You want to choose mainly by trip length	Holafly
You are comparing unlimited plans on price alone	Usually a small difference

Project Torii Bottom Line
Choose Airalo because you want more control.
Choose Holafly because you want less to think about.
The unlimited prices are often close enough that the better decision comes down to three questions: How much data do you actually need? Do you want a clearly defined high-speed allowance? How much hotspot use do you expect?

→ Read the full Airalo review

→ Read the full Holafly review

→ Compare the best eSIMs for Japan

→ Check Airalo’s latest plans and prices

→ Check Holafly’s latest plans and prices

23. FAQ

Airalo or Holafly for Japan: which is better?

Choose Airalo if you can roughly estimate your data needs or expect frequent laptop hotspot use. Choose Holafly if you mainly want unlimited smartphone data without thinking about remaining GB.

Which is cheaper?

For light to moderate usage, Airalo can be much cheaper because you can buy a set amount of data instead of unlimited. The price gap between the two unlimited plans is usually much smaller.

Is Airalo Unlimited really unlimited?

Under the default FUP, you receive 3GB of high-speed data per 24 hours. Data continues after that at up to 1Mbps until the next reset. A package-specific threshold takes precedence if one is listed.

Is Holafly really unlimited?

There is no fixed total data allowance to exhaust, but Fair Use Policy measures can temporarily reduce speed or otherwise restrict usage in some circumstances.

How many high-speed GB per day does Holafly guarantee?

Holafly does not publish a guaranteed fixed daily high-speed allowance for the Japan Unlimited plan. Project Torii does not guess a number that the provider does not publish.

Do Airalo and Holafly use the same network in Japan?

Both list KDDI and SoftBank. That does not mean routing, priority, or real-world performance will always be identical.

What is hotspot?

It is the feature that lets your phone share its mobile data connection with a laptop, tablet, or another phone over Wi-Fi. Apple calls it Personal Hotspot; it is also commonly called tethering.

Which is better for a laptop?

Airalo is the better first comparison. Holafly Japan limits hotspot sharing to 1GB per day. Airalo has no separate small hotspot allowance, although hotspot traffic still uses the same high-speed allowance.

Which is better for a 7-day trip?

For typical use, an Airalo plan around 5GB may be enough. If you want unlimited data, the reference prices were very close: US$27 for Airalo and US$27.50 for Holafly at the time of this review.

Which is better for a 10-day trip?

If 5–10GB sounds sufficient, compare Airalo’s set-data plans first. For unlimited data, the reference prices were US$34.50 for Airalo and US$36.50 for Holafly.

Does either support 5G?

Holafly’s Japan page explicitly lists 5G where available. For Airalo, check the specific Japan package details because Project Torii does not make a blanket 5G claim for every local package.

Which is faster?

There is not enough consistent evidence to declare one provider universally faster. Performance varies with network, location, congestion, device, roaming configuration, and Fair Use Policy.

Which is better for rural Japan?

Both list KDDI and SoftBank. If rural and mountainous coverage is a major priority, also compare Ubigi for access to NTT Docomo.

24. Sources & Evidence

Airalo Japan Official Information

Japan set-data and unlimited plans, pricing, KDDI / SoftBank, hotspot support, and package availability.

Airalo Unlimited Data Plans — Fair Use Policy

Default 3GB / 24-hour high-speed allowance, throttling to up to 1Mbps, 24-hour resets, and Personal Hotspot conditions.

Holafly Japan Official Page

Japan Unlimited Data, pricing, KDDI / SoftBank, 5G / 4G / LTE, 1GB/day hotspot sharing, data-only service, and activation.

Holafly Terms / Fair Use Policy

Fair Use Policy conditions for unlimited plans and possible temporary restrictions.

Project Torii Internal Assets

Cross-checked against the eSIM Pillar, Airalo / Holafly / Ubigi / Nomad / Saily Detailed Reviews, Japan Mobile Networks, and How Much Data Do You Need in Japan?

Project Torii Editorial Note

Editorial Principle
Networks, plan structures, Fair Use Policy rules, hotspot conditions, 5G guidance, and refund terms rechecked: August 28, 2026. US-dollar reference prices captured: August 11, 2026.
Prices, plans, networks, Fair Use Policy rules, and hotspot conditions can change. Project Torii does not treat unlimited data as the same thing as guaranteed unlimited high-speed data, and we do not invent unpublished high-speed limits. We also separate the performance of the underlying Japanese carrier from the real-world performance of a roaming eSIM service.
Project Torii does not recommend an eSIM simply because it pays a higher affiliate commission. We separate official product information, independent network evidence, local experience, practical limitations, and price wherever possible.
Trust over commissions.

Source URLs — Editorial Reference

Airalo Japan eSIM: https://www.airalo.com/japan-esim

Airalo Unlimited Fair Use Policy: https://www.airalo.com/m/resources/unlimited-data-plans-fair-use-policy

Airalo Terms of Use: https://www.airalo.com/legal/terms-of-use

Holafly Japan eSIM: https://esim.holafly.com/esim-japan/

Holafly Terms and Conditions: https://esim.holafly.com/terms-and-conditions/

Holafly Refund Policy: https://esim.holafly.com/refund-policy/