Written By: Eleanor McGleenan
Updated On:

Best eSIM for Yokohama – Japan’s Port City

It’s tough to stay online when you’re exploring a new place, right? In a city as vibrant as Yokohama, you want to be able to navigate the streets and share your adventures without worrying about roaming fees. You’re trying to navigate the city’s intricate streets, find that hidden ramen shop, or share a stunning photo of the Minato Mirai skyline, but you’re constantly worried about expensive roaming charges or hunting down unreliable public Wi-Fi. It’s a common problem for travelers everywhere, and we’ve found that eSIMs offer a simple, modern solution. This article is a professional, in-depth review of the Best eSIM for Yokohama in 2025, meticulously tailored to help you find a seamless, stress-free connectivity solution for your trip to this dynamic Japanese port city.

We’ve reviewed and compared the top providers, helping you find the perfect eSIM for Yokohama travel so you can focus on making memories, not managing data. It’s all about getting online quickly and affordably.

A Quick Glance at the Top 10 eSIM Providers for Yokohama

When you’re planning your trip, you’ll want to see your options at a glance. Here’s a quick summary of the top players, with a brief note on what makes each of them a solid choice for a Yokohama travel itinerary.

  • Saily: Best for all-around value, offering secure, affordable plans that work great throughout the city.
  • Airalo: A top pick for its wide coverage in Yokohama and a super easy-to-use app for city exploration.
  • Holafly: Perfect for travelers who need truly unlimited data for all their social media and maps while exploring.
  • Nomad: A great option for flexible plans, with the ability to choose a local network that works best in the Yokohama area.
  • Jetpac: An excellent budget-friendly choice with generous data and unique travel perks you won’t find anywhere else.
  • aloSIM: Offers reliable plans that can actually include a local Japanese phone number for easy contact.
  • Instabridge: Delivers competitive rates with built-in security features for worry-free Browse.
  • Ubigi: Known for its premium, single-eSIM profile that works across Yokohama and the rest of the world.
  • Yesim: A flexible provider with pay-as-you-go and unlimited options tailored for Yokohama.
  • Billion Connect: A leader in high-data and daily unlimited plans, perfect for a short trip to Yokohama.

In-Depth Reviews: The Top 5 eSIM Providers

Here, we’ll dive into the details. We’ve handpicked five providers to showcase their specific strengths, helping you decide which one fits your travel style.

Saily: A Smart Choice for Yokohama Travelers

Saily is quickly gaining traction as a go-to provider, especially for those who prioritize a mix of solid performance and great value. They’ve built a reputation for offering a reliable service that doesn’t break the bank, which is a major plus for anyone planning a longer stay. We see Saily as a smart choice because it balances cost with connectivity, making it a powerful contender for the best eSIM for Yokohama. The service is backed by a well-regarded VPN provider, which means it also comes with a strong emphasis on data security—a nice bonus when you’re using public networks.

Established YearCoverageKey FeaturesData PlansNetwork PartnersCustomer SupportApp AvailableVerdict Score
2023200+ countriesAd-blocker, web protection, VPNFixed, UnlimitedLocal Tier-1 carriers24/7 Live ChatiOS, Android4.9/5

Saily’s strength lies in its ability to offer consistent connectivity without the high price tag. We’ve found their network performance to be excellent across Yokohama’s most popular destinations, from the modern waterfront of Minato Mirai to the bustling streets of Chinatown. The service remains stable even when you venture on a day trip to Tokyo or Kamakura, connecting to the robust local carriers like SoftBank and NTT Docomo. This makes it an ideal eSIM for Japan for travelers who plan to explore beyond the city limits. Saily also offers an interesting mix of plans, including some of the most competitive cheap eSIM Yokohama options available.

Why Saily is a Top Pick for Yokohama

Saily stands out because it offers more than just data. The built-in security features are a big deal, protecting you from public Wi-Fi risks and keeping your Browse private. The plans are also incredibly flexible. You can grab a short-term plan for a quick weekend or a more generous package for a month-long adventure.

Saily’s network reliability in key urban areas is a huge advantage. When we tested it, speeds were consistently fast enough for high-definition streaming, smooth video calls, and effortless navigation.

Saily eSIM Plans for Yokohama

Plan NameData AmountValidityPriceCoverageSpecific Locations Covered
Yokohama Explorer3 GB15 Days$7.99JapanYokohama, Tokyo, Kyoto
Japan Unlimited Lite10 GB (High-speed)30 Days$22.99JapanAll major cities and regions

Pros

  • Offers excellent all-around value, blending affordability with strong performance.
  • Comes with built-in security features, like an ad-blocker and web protection, which is a rare and valuable perk.
  • The app is simple and easy to navigate, making plan management a breeze.
  • Works seamlessly on major local networks, ensuring a strong connection in urban centers.

Cons

  • Unlimited plans may have a fair usage policy that slows speeds after a certain amount of data is used.

Airalo: The Pioneer for Japan’s Port City

When you think of a travel eSIM for Japan, Airalo is often the first name that comes to mind. It’s an industry pioneer and its reputation is well-earned. The platform is known for its incredibly user-friendly app and a wide array of country-specific plans, including some of the most popular options for Yokohama travel. Airalo has solidified its position as a reliable choice for travelers who value simplicity and a trusted name.

Established YearCoverageKey FeaturesData PlansNetwork PartnersCustomer SupportApp AvailableVerdict Score
2019200+ countriesEasy top-ups, referral programFixed, RegionalSoftBank, KDDI au24/7 Live ChatiOS, Android4.8/5

Airalo’s strength is its pure focus on data connectivity. Their eSIM for Japan options are straightforward and easy to understand. We’ve found that Airalo’s service performs exceptionally well in Yokohama’s most-visited neighborhoods, from the historic streets of Motomachi to the modern business district around Yokohama Station. The seamless integration with major networks like SoftBank and KDDI au means you get reliable 4G and 5G service, whether you’re navigating the subway system or waiting for a cruise at Yamashita Park. You’ll find plenty of positive feedback in any Airalo Japan eSIM review for a reason.

Why Airalo is a Top Pick for Yokohama

The biggest reason to choose Airalo is its consistent reliability and simple user experience. The app is incredibly intuitive, letting you buy, install, and top up a plan in just a few taps. It’s perfect if you’re arriving at a busy place like Haneda Airport or Narita Airport and need to get connected right away without any fuss. Their plans are also very competitively priced, making it a solid option for a cheap eSIM Yokohama.

Airalo eSIM Plans for Yokohama

Plan NameData AmountValidityPriceCoverageSpecific Locations Covered
Mochi1 GB7 Days$4.50JapanTokyo, Yokohama, Osaka
Kawaii10 GB30 Days$18.00JapanNationwide

Pros

  • Exceptional user-friendly app for quick installation and management.
  • Wide range of plans, from short-term to long-term, perfect for any itinerary.
  • Reputable and well-established provider with a large user base.
  • Instant top-up feature means you never have to worry about running out of data.

Cons

  • Doesn’t offer a local phone number, a feature some travelers might want.

Holafly: The Unlimited Data Dream

For travelers who can’t stand the thought of running out of data, Holafly Japan is the clear winner. This provider specializes in one thing: truly unlimited data plans. If you’re a heavy social media user, a frequent video caller, or just someone who relies on maps and streaming without a second thought, Holafly’s eSIM Yokohama unlimited data options are designed for you.

Established YearCoverageKey FeaturesData PlansNetwork PartnersCustomer SupportApp AvailableVerdict Score
2018190+ countriesUnlimited data, free calls to EuropeUnlimitedSoftBank, KDDI au24/7 Live ChatiOS, Android4.7/5

Holafly’s service is built for the modern traveler who uses their phone for everything. We’ve seen that the “unlimited” claim holds up, though it’s important to know that most providers have a fair usage policy (FUP) to prevent network congestion. For Holafly, this policy is very generous, and most users will never hit the threshold. The connectivity is strong throughout the city, from the bustling Sakuragicho area to the quieter parks and museums. It’s a premium experience for those who need to be connected 24/7.

Why Holafly is a Top Pick for Yokohama

The main selling point is the peace of mind. Knowing you have unlimited data means you can use your phone exactly as you would at home. No more checking data usage or hunting for Wi-Fi. This is perfect for the kind of immersive Yokohama travel that requires constant access to Google Maps, translation apps, and sharing real-time updates with friends and family.

Holafly eSIM Plans for Yokohama

Plan NameData AmountValidityPriceCoverageSpecific Locations Covered
Japan Unlimited 5 DaysUnlimited5 Days$20.90JapanAll of Japan
Japan Unlimited 20 DaysUnlimited20 Days$61.90JapanAll of Japan

Pros

  • Offers truly unlimited data plans for worry-free usage.
  • Includes a unique feature for making calls to Europe and the U.S.
  • Simple, single-plan approach makes choosing a plan easy.
  • High reliability on major local networks for consistent speeds.

Cons

  • Plans are generally more expensive than those with limited data.
  • Tethering or hotspot functionality can be limited.

Nomad: Flexibility and Local Network Control

Nomad is a great choice for a certain type of traveler: one who likes options. This provider offers a variety of plans, giving you the flexibility to pick exactly what you need. One of its standout features is the ability to select from different local network partners, which can be a huge advantage if you’re in an area with better coverage from one carrier over another. This is why a Nomad eSIM Japan plan is often recommended by savvy travelers.

Established YearCoverageKey FeaturesData PlansNetwork PartnersCustomer SupportApp AvailableVerdict Score
2018100+ countriesMultiple network options, top-up availableFixed, RegionalSoftBank, KDDI auEmail, FAQiOS, Android4.6/5

Nomad’s approach gives you a degree of control that other providers don’t. When we’ve used their service, we’ve found that having the choice of carriers on the ground can make a difference in certain spots. For a city as dense as Yokohama, this means you can manually switch to the strongest signal to avoid dead zones. It’s a versatile option for both urban explorers and day-trippers. Their plans are well-suited for a variety of budgets, offering a mix of affordable and high-data options.

Why Nomad is a Top Pick for Yokohama

The flexibility is the key here. If you know you’ll be spending a lot of time in a particular area or you simply want to ensure you have the best possible signal, Nomad gives you that power. It’s a great option for a Japan prepaid SIM card replacement. The app is straightforward and the plan options are transparent, making it easy to see what you’re getting.

Nomad eSIM Plans for Yokohama

Plan NameData AmountValidityPriceCoverageSpecific Locations Covered
Japan 1GB1 GB7 Days$3.50JapanTokyo, Yokohama, Osaka
Japan 5GB5 GB30 Days$10.00JapanAll major cities

Pros

  • Provides the flexibility to choose a specific local network carrier.
  • Diverse range of data plans to suit different needs and budgets.
  • Easy-to-use app for buying and managing plans.
  • Supports tethering/hotspot, a great feature for sharing data.

Cons

  • Requires a bit more technical know-how if you want to manually switch networks.
  • Customer support is primarily email-based, which may be slower than live chat.

Jetpac: An Unexpectedly Great Budget Pick

Jetpac is the underdog of this list, but it’s a solid contender, especially if you’re looking for a cheap eSIM Yokohama. This provider focuses on giving you what you need at a great price, with a few surprising extras thrown in. They’ve found a niche by offering competitive pricing on data plans for travelers.

Established YearCoverageKey FeaturesData PlansNetwork PartnersCustomer SupportApp AvailableVerdict Score
202150+ countriesFree airport lounge accessFixed, RegionalSoftBank, NTT Docomo24/7 Live ChatiOS, Android4.5/5

Jetpac’s plans are straightforward, and their pricing is often hard to beat. We’ve found that their coverage in Yokohama is surprisingly good, holding up well in dense urban areas. The speeds are reliable for daily use like checking maps, messaging, and light Browse. Their most unique feature is the one that sets them apart: free airport lounge access if your flight is delayed by over 60 minutes. It’s a nice touch that adds a layer of reassurance for any traveler.

Why Jetpac is a Top Pick for Yokohama

Jetpac is an excellent choice for the budget-conscious traveler who still wants reliable service. The combination of affordable plans and the added benefit of flight delay lounge access makes it a very compelling package. It’s a great, low-risk way to get your feet wet with an eSIM card Japan while keeping your wallet happy.

Jetpac eSIM Plans for Yokohama

Plan NameData AmountValidityPriceCoverageSpecific Locations Covered
Japan 500MB/Day500MB Daily5 Days$7.99JapanAll of Japan
Japan 1GB/Day1GB Daily10 Days$19.99JapanAll of Japan

Pros

  • Highly competitive pricing, offering one of the most affordable options.
  • Unique perk of free airport lounge access for flight delays.
  • Simple and easy-to-understand data plans.
  • Solid network coverage for everyday use in Yokohama.

Cons

  • Doesn’t offer unlimited data plans, only fixed amounts.
  • Data amounts might be too low for heavy users.

Our Methodology for Reviewing Yokohama eSIMs

You might be wondering how we came up with our recommendations. We take our role as a trusted guide seriously, and our process is built on a few core principles. Our goal is to provide a balanced and objective review to help you find the best eSIM for Yokohama. We don’t just look at the price; we dig deeper into what truly matters for a stress-free travel experience.

Coverage and Network Quality

This is the most important part. A cheap plan is useless if the connection is bad. We check if providers partner with major Japanese networks like NTT Docomo, KDDI au, and SoftBank. We look for providers that can guarantee strong 4G/5G connections in Yokohama’s key areas, from the bustling Minato Mirai waterfront to the vibrant streets of Chinatown. We also consider how they perform on popular excursions, such as a day trip to eSIM for Tokyo or the historical sites of Kamakura.

Data Plans and Pricing

We compare the variety of data amounts and validity periods, always looking for the best value. This includes a close look at so-called “eSIM Yokohama unlimited data” plans to understand their fair usage policies. We also compare the cost of an eSIM for Yokohama travel to a traditional Japanese prepaid SIM card to make sure we’re recommending the most cost-effective solutions. The goal is to find options that fit every budget, from quick trips to extended stays.

Ease of Use and Activation

The whole point of an eSIM is convenience. We evaluate how easy it is to purchase, install, and activate the eSIM. This includes the app experience and the clarity of the setup instructions. We want to make sure you can get online the moment you land at Haneda Airport or Narita Airport without any technical headaches.

Customer Support

When something goes wrong, you need help fast. We look at the availability and responsiveness of customer support. Are they available 24/7? Do they offer live chat? Is multilingual support an option? Having reliable support is crucial, especially when you’re in a new country.

Additional Features

Beyond just data, we look for extra benefits. Can you use your phone as a hotspot? Do they offer a Japanese phone number for local contacts or restaurant bookings? We even consider the relevance of features like VoIP for making calls, ensuring you have a complete communication solution.

Comparison: The Best Yokohama eSIMs

To give you an even clearer picture, here’s a side-by-side look at the top contenders.

eSIM ProviderKey Feature HighlightYokohama-Specific Plans AvailableUnlimited Data OptionsValidity RangeBest For
SailyBest all-around value and securityYesYes (with FUP)7-30 daysBudget-conscious travelers who value security.
AiraloMost user-friendly appYesNo7-30 daysNew eSIM users and those seeking reliability.
HolaflyTrue unlimited dataYesYes5-90 daysHeavy data users and digital nomads.
NomadFlexible plans and network choiceYesNo7-60 daysTravelers who want control over their connection.
JetpacBudget-friendly with unique perksYesNo5-30 daysValue seekers and those worried about flight delays.
aloSIMPlans with a local phone numberYesNo7-30 daysAnyone who needs a local phone number.
InstabridgeCompetitive rates and securityYesNo1-30 daysTravelers on a strict budget.
UbigiGlobal single-eSIM profileNo, but Japan plans availableYes1-90 daysFrequent international travelers.
YesimFlexible pay-as-you-goYesYesPay-as-you-goThose with unpredictable data needs.
Billion ConnectHigh-data and daily unlimited plansYesYes1-30 daysShort-term visitors with high data consumption.

The Advantages of Using an eSIM in Yokohama

If you’re still on the fence about using an eSIM for your trip, consider this. The classic physical SIM card for Yokohama is becoming a thing of the past. An eSIM is simply better in almost every way. The convenience of not having to swap tiny physical cards is a massive plus. You just activate it with a QR code or an app, and you’re good to go. This means you can get connected the moment your plane touches down, which is a huge deal when you need to call a cab or check directions.

With an eSIM, you also keep your home number active. This lets you receive important calls and texts without paying insane roaming fees for data. It’s a huge benefit that solves a common problem. The reduced roaming costs and flexible data options are another major win. You can pick a plan that fits your exact itinerary, so you’re never paying for more than you need. Think about how easy it is to use Google Maps to find your way through the subway or look up information on a specific exhibit at the CupNoodles Museum without worrying about your data plan.

Emerging Trends in Yokohama eSIMs for 2025

The eSIM industry is evolving fast. For a city like Yokohama, which is a hub for technology and tourism, we’re seeing some interesting trends. Expect to see AI-powered tools that recommend the perfect plan based on your itinerary. Imagine an app that knows you’re going to spend a day in Minato Mirai and suggests a specific plan to cover your needs. We’re also seeing providers like Nomad eSIM Japan and Holafly Japan pushing for hyper-localized deals for specific areas. The future will likely bring even more widespread 5G coverage, making all those apps and maps even faster.

Essential Features of a Yokohama eSIM

When you’re shopping for an eSIM, you need to look beyond the price tag. The key is to find a provider with features that align with your specific travel needs. You need to consider a few things before you commit to one provider.

First, think about whether you need a data-only plan or if you want a voice and SMS plan. Most travel eSIMs are data-only, but you can still make calls using VoIP apps like WhatsApp or FaceTime. Some, like the eSIM Yokohama with phone number from providers like aloSIM, can give you a local number, which is a big deal for making local reservations.

Hotspot capability is another critical feature. If you’re traveling with friends or have multiple devices, being able to share your data is a huge plus. Always check if the plan allows this before you buy. Finally, consider the validity periods. Some providers offer short-term plans for just a few days, which is great for a quick stop in Yokohama. Others offer long-term plans perfect for an extended trip through the rest of Japan, including eSIM for Tokyo and eSIM for Kyoto.

How eSIMs Connect You in Yokohama

You might be wondering how an eSIM works its magic. It’s actually pretty simple. Major eSIM providers partner with Japan’s top local networks, such as NTT Docomo, KDDI au, and SoftBank. These partnerships are what give you reliable coverage. When you activate your eSIM, your phone connects to one of these networks, giving you the same fast speeds and strong signal that a local would have.

The network infrastructure in Japan is incredibly robust, which is why you can expect a strong signal in most places. This is true for urban areas like the bustling streets of Minato Mirai and the more modern business districts. The solid infrastructure ensures your connection stays strong even on the move, whether you’re on a train or exploring a new neighborhood.

Pros and Cons of a Yokohama eSIM

ProsCons
Convenience: No more physical SIM card swaps.Compatibility: Not all older devices support eSIM.
Instant Activation: Get connected the moment you land.Data-Only: Most plans don’t include a phone number.
Keep Home Number: Use your primary line for calls and texts.Troubleshooting: Can be challenging without Wi-Fi.
Cost Savings: Avoid expensive roaming fees.Plan Options: Unlimited data plans may have FUP.
Flexibility: Easily switch between providers and plans.

Checking Device Compatibility

This is the most important step before you buy. Most newer smartphones, especially models from the last few years, support eSIMs. You should always check your device settings or the manufacturer’s website to be sure. For iPhones, models from the iPhone XR onward generally support eSIM. Most Samsung Galaxy S and Z series phones, as well as Google Pixel phones from the Pixel 3 and up, are also compatible.

A quick and easy way to check on an iPhone is to go to Settings > Cellular. If you see an “Add Cellular Plan” option, you’re good to go.

Payment Methods for a Yokohama eSIM

Buying an eSIM is easy and secure. Most providers accept standard payment methods like major credit and debit cards, including Visa, Mastercard, and Amex. You’ll also find that many support popular digital wallets like PayPal, Google Pay, and Apple Pay. Some providers might even accept more localized payment gateways or cryptocurrencies, but the main options are always available.

eSIM vs. Physical SIM Card for Yokohama

This is a big debate for many travelers, and the winner is clear. eSIM is the modern choice.

FeatureeSIMPhysical SIM Card
ConvenienceInstant, digital activation.Requires a physical purchase and swap.
CostTypically more affordable; avoids roaming.Can be expensive; local prepaid SIMs are an option.
FlexibilityEasily switch plans and providers.Locked into one plan and provider.
Phone NumberYour home number stays active.Your home number is inactive.
Risk of LossNone. It’s digital.Easy to lose or damage.
InstallationQuick and easy with a QR code or app.Requires a physical tool and careful handling.

Data Plans and Speeds in Yokohama

Choosing the right plan depends entirely on your usage. If you’re just using your phone for navigation, messaging, and light social media, a small data plan (1-5GB) for a week might be enough. If you’re a heavy user who streams video or uploads a lot of photos, you’ll want to look at a larger plan or one with eSIM Yokohama unlimited data. In Yokohama, you can expect fast 4G and 5G speeds, so no matter what plan you choose, your connection will be quick enough for almost anything you need to do online.

Finding the Right eSIM for Your Trip Style

Your trip is unique, so your connectivity solution should be, too. If you’re a sightseer who mostly uses their phone for maps and checking museum hours, a simple, low-cost plan from Airalo or Jetpac will work great. If you’re a foodie who needs to be constantly searching for the next best restaurant, a plan from Holafly with eSIM Yokohama unlimited data is a perfect fit.

For day-trippers who will be visiting eSIM for Tokyo and other nearby cities, a provider with a strong national network like Nomad is a smart choice. If you’re a digital nomad, you might be interested in forums like Best eSIM Yokohama Reddit to see what other travelers are saying, but our top picks offer reliable service for work and play.

A Simple Guide to Setting Up Your Yokohama eSIM

Getting your eSIM ready is a lot easier than you might think. First, buy your plan from your chosen provider. You’ll get an email or in-app notification with a QR code. Next, go to your phone’s cellular settings and choose to add a new cellular plan. You’ll scan the QR code and follow the on-screen prompts. Just make sure to install the eSIM before you leave home while you still have a stable Wi-Fi connection.

Once you land in Yokohama, you’ll simply need to enable the eSIM and turn on data roaming for that line in your phone’s settings. The network will automatically connect, and you’ll be online instantly. It’s really that simple.

Responsible Connectivity in Yokohama

While an eSIM offers a ton of freedom, it’s still important to be smart about your online habits. Data security is key, especially when you’re traveling. Remember that even with an eSIM, it’s wise to be cautious about connecting to public Wi-Fi networks in cafes or stations. You should always use a VPN to protect your data, and some providers, like Saily, even include this feature in their service.

Our Final Verdict: The Top-Rated eSIM for Yokohama

After reviewing and comparing the best providers, we have a clear recommendation for the Best eSIM for Yokohama. We believe that Saily offers the most compelling combination of value, security, and performance.

  • Exceptional Value: Saily’s plans are priced incredibly well, giving you high-quality service without the high cost.
  • Built-in Security: The inclusion of an ad-blocker and web protection is a unique and essential feature for modern travel.
  • Reliable Performance: The network quality is top-notch, ensuring you stay connected in every corner of the city.
  • User-Friendly Experience: The app is intuitive and easy to use, making the entire process seamless from start to finish.

With Saily, you’re not just getting a data plan; you’re getting a complete connectivity solution that gives you peace of mind. We highly recommend you check out their plans for your next trip to this amazing city.

Don’t let connectivity be a source of stress on your trip. Our top-rated eSIM for Yokohama makes it easy to stay connected so you can focus on the unforgettable sights and experiences. Click here to find the perfect plan for your adventure today and experience the difference for yourself.

Your Questions Answered: Common eSIM Questions for Yokohama

What is an eSIM and how does it work for Yokohama travel?

An eSIM is a digital SIM card that’s built right into your phone. It works by downloading a data plan onto your device, so you can connect to a local network in Yokohama without needing a physical card. It’s a convenient, digital way to get online, and it’s perfect for travelers.

Is an eSIM better than a physical SIM card for Yokohama?

Yes, absolutely. An eSIM is more convenient because there’s no physical card to lose or swap. You can activate it instantly and keep your home phone number active for calls and texts while using your eSIM for data.

Can I get an eSIM with unlimited data in Yokohama?

Yes, some providers like Holafly offer plans with eSIM Yokohama unlimited data. While these plans often have a fair usage policy, the data caps are typically high enough that most travelers will never hit them.

Which areas in Yokohama support eSIMs well?

The major local network carriers have extensive coverage. You’ll get a great signal in all key areas, including the bustling waterfront of Minato Mirai, the vibrant streets of Chinatown, and the train hub around Sakuragicho.

Do I need to activate my eSIM before arriving in Yokohama?

You should buy and install your eSIM before you travel, but you only need to activate it once you land. This way, you’ll be connected the moment you arrive.

What if I need a local Japanese phone number for my trip?

Most travel eSIMs are data-only, but a few providers, like aloSIM, offer plans that include a Japanese phone number. This is a great feature if you need to make local calls or get text messages for reservations.