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SoSIM Japan SIM Card | Explore Japan with High-Speed APAC Data from just $6.6 / Day
SoSIM Japan SIM Card
Explore Japan with High-Speed APAC Data from just $6.6 / Day
 Buy Now ❯ Service Charges ❯ Activation Guide ❯ FAQ ❯ |
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From spring cherry blossoms and summer festivals to autumn maples and winter skiing, Japan is always an attractive travel spot in every season.
SoSIM Japan SIM card is your ultimate travel partner – with a Japan internet card starting at just $6.6/day! Flexible Packages for Every Trip Whether it's a quick getaway, long-term stay, or business travel, we have a Japan phone card package for you. Choose from daily / monthly / annual APAC data packages or customise your own. New Customer Exclusive: $33 for 5 Days Stay connected with our exclusive Japan data card deal. For just $33, enjoy 5 days of high-speed data to share photos, navigate easily, and stay in touch. Get your SoSIM Japan SIM card today and skip the expensive Japan roaming fees! |
SoSIM Japan Data Card | 5 Key Advantages for a Worry-free Trip
SoSIM Japan Data Card
5 Key Advantages for a Worry-free Trip
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Multi-Network Connectivity |
| Access 2-3 major local networks with your SoSIM Japan package. Manually switch for a better coverage and high-speed 5G – the seamless Japan internet card experience. |
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Multi-Region APAC Data |
| One Japan phone card for multiple APAC destinations. Travel across regions without swapping cards or extra roaming fees. |
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Top-up Anytime |
| No card swapping needed! Enable "Auto-activation" to use your Japan SIM card instantly upon arrival. You can also top up Japan data card online with up to 40% off, perfect for heavy users. |
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24-Hour Calculation |
| Maximise every KB! Our daily pass uses a full 24-hour cycle, so you never have to worry about arrival times. It's the fairest way to avoid Japan roaming waste. |
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Hotspot Support |
| Simple and unrestricted. Share your SoSIM Japan connection via mobile router or personal hotspot with friends and other devices easily. |
Which SoSIM Japan Package is right for you?
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Whether you're heading to Japan for a quick weekend or a long-term adventure, we've got a great value-for-money Japan internet card for you!
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Short Trip 3 - 5 Days |
Craving Japanese food or a quick getaway? |
| Grab our $33 / 5-Day Japan SIM card deal! It's perfect for a long weekend. Plus, any leftover days stay valid for 180 days, so you're already set for your next trip! Best way to buy: Get an eSIM at sosimhk.com or pick up a physical card at the airport. |
Family Vacation & Long Stay |
Taking the whole family to see the sights? |
| Our Travel Data DIY pass is a must-have. You can pick the exact days and data you need. Kids can stream videos while grandparents stay connected on WhatsApp – sharing your APAC data via hotspot is the smartest way to save! |
Study Abroad 5 Days - 1 Month |
Heading to Japan for a study tour or language school? |
| Go for our 30-day Japan data card packages. With up to 16GB of high-speed data, students can stay connected every day without worry. Parents can even log in remotely to help top up data whenever it's needed! |
Business Travel |
On the move for work across multiple cities? |
| We recommend our 30-day or 365-day Japan roaming or DIY pass, with total flexibility for busy schedules. Share your connection with your laptop via hotspot and top up instantly if you need more. No more Japan roaming bill shocks! |
Buying a Local SIM in Japan vs. SoSIM Japan Data Card
Buying a Local SIM in Japan
vs
SoSIM Japan Data Card
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If you travel to Japan several times a year, a reliable Japan internet card is your must-have companion. SoSIM Japan SIM card provides all-around service at a better price, supporting every one of your amazing trips. Enjoy more flexibility than your average Japan phone card, SoSIM is a smart choice for savvy travellers!
$33 / 5-Day SoSIM Japan – |
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SoSIM Japan | Chill & Flexible Travel
SoSIM Japan
Chill & Flexible Travel
Flexible Days, No WasteUnlike other Japan internet cards, SoSIM 24-hour travel data doesn't require consecutive use. You can activate data pass day-by-day or end your trip early without wasting money. Total flexibility for your schedule! |
Best for Cruises & Multi-Stop TripsExploring Japan, Korea, or the Asia-Pacific? Our 30-day APAC Data Roaming packages (8GB / 16GB) keep you connected across multiple destinations using a single Japan phone card. |
Data Tailored to YouUse our unique "DIY Days & Data Pass" feature to build your own data package. Start with 1GB / day and top up your Japan data card instantly if you need more. No more guessing! |
One Card, Infinite TripsReuse your Japan SIM card for every journey. With 500+ pick-up points in Hong Kong, it's easy to grab a card once and simply reactivate it whenever you "return home" to Japan. |
SoSIM Japan SIM Card14 | Pick Your Desired Data Packages
SoSIM Japan SIM Card14
Pick Your Desired Data Packages
| Reminder: Our APAC data packages cover 24 popular destinations, including Mainland China, Macau, South Korea, Singapore, Malaysia, Thailand and Vietnam. It's an unbeatable Japan internet card for multi-stop trips across Asia! |
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$33 New SoSIM Exclusive | Japan Roaming at just $6.6 / Day
$33 New SoSIM Exclusive
5-Day Asia-Pacific Data (Choose to use days consecutively or separately^)Japan Roaming at just $6.6 / Day + 30 Days extra 3GB Hong Kong data Log in to your SoSIM account within 48 hours of activation to convert data Must activate within 60 days3; validity extends to 180 days after conversion4 ^Transform your SoSIM into a Japan SIM card with 24-Hour Pass: 500MB high-speed data daily (thereafter 128kbps) OR DIY Pass for consecutive use throughout the journey: a total of 2500MB data for your 5-day trip Add-on Purchase of Your SoSIM Japan data card |
Japan SIM card - Monthly & Yearly Packages
$138
/ 8GB (30 days)
$198
/ 16GB (30 days)
$268
/ 17GB (365 days)
✓ Best for Study tours, business trips and long-term stays.
✓ Reliable Japan internet card packages with extended validity for sojourn travellers
✓ Reliable Japan internet card packages with extended validity for sojourn travellers
+$20 Top-up 1GB to your pass15
Service packages take effect instantly upon successful purchase
Service packages take effect instantly upon successful purchase
Japan Data Card DIY Pass
$21
From - 1GB/ day
Mix and match days and data to fit your exact schedule. Skip the Japan roaming fees and only pay for what you need.
✓ Long Holidays: Full coverage for extended stays.
✓ Best value for high usage / data sharing
✓ Long Holidays: Full coverage for extended stays.
✓ Best value for high usage / data sharing
Service charges vary in accordance with your selected travel region, number of days
and data usage
Customise up to 30 days (from 500MB/day) Min. 1,000MB for a 1-day Japan SIM card DIY pass
and data usage
Customise up to 30 days (from 500MB/day) Min. 1,000MB for a 1-day Japan SIM card DIY pass
24-Hour Japan Data Card Pass
$12
/ Day(500MB FUP / thereafter 128kbps)
✓ Must-have companion forweekend getaways
✓ Layover Ready: for Japan transits or short stays – buy and activate instantly.
✓ Layover Ready: for Japan transits or short stays – buy and activate instantly.
+$7 Top-up15 your pass to 1000MB
SoSIM Japan SIM Card | More features to be discovered
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Beyond being a high-speed Japan internet card, your SoSIM Japan phone card also keeps you reachable for essential communications while travelling!
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Buy eSIM / Order Physical SIM Online
Buy eSIM / Order Physical SIM Online
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eSIM | Simply scan QR code to install, Physical SIM | Order and pick up at 500+ stores
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 Buy in SoSIM eShop ❯
 SoSIM x Watsons
 Hung Fook Tong
(Shop Online & Redeem Instantly)
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Pick up at Hong Kong Airport and border checkpoint
Transform to Japan SIM Card | New SoSIM Exclusive
Transform to Japan SIM Card
New SoSIM Exclusive
 1 Insert SIM card and login SoSIM account, select "Immediately Switch Travel Data" within 48 hours (the option will pop up automatically and can be accessed via homepage banner / reminder)  2a Perfect for short getaway: Transform to APAC Travel Data (can be used individually) Daily data usage is valid for 24 hours upon activation of data pass – you can also "Add Extra Day Pass" as you need Check transform offer and additional purchase details, click "Confirm"  2b Perfect for long vacation / flexible usage: Transform to APAC Travel Data DIY (for consecutive use) DIY data usage can be used within the purchased number of days – Add-on Days and Top-up Data are available of your choice Check transform offer and additional purchase details, click "Confirm"  3 Select payment method for additional purchase of extra day / top-up data, and click "Pay" to proceed  4 After transformation, view your travel data pass details via Home  5 Select "Buy Offers" > "Roaming" to purchase more travel data as you need |
SoSIM Japan SIM card | Package Purchase & Activation Guide
SoSIM Japan SIM card
Package Purchase & Activation Guide
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Follow the steps below to purchase your desired package and set up auto-activation. Upon arrival, simply turn OFF Wi-Fi, turn ON Data Roaming and VoLTE, and ensure you have sufficient balance for voice and SMS on your Japan phone card. How to Purchase Top-up Data
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 1 Log in to your SoSIM account, tap "Buy offers" > "Roaming Data" and search for the region: Asia Pacific (APAC)  2 Choose the Japan roaming data pass that best matches your travel needs  3 In the pop-up message, select "Switch ON Auto-activation" to ensure that you can start using Japan internet card instantly upon arrival  4 Click Purchase to complete your payment. You can view your active Japan data card packages anytime under Home > Roaming Services. If you need to change the auto activation settings, go to "Valid Purchased Package". Select the package you want to adjust and click "Switched ON / OFF" to update the setting |
Highly Recommended by Travellers | Real Japan SIM Card Stories
Highly Recommended by Travellers
Real Japan SIM Card Stories
"I've used many Japan internet cards, but I think SoSIM is the best! The price is really great value, and I love that there are alerts when my data is running low. Most importantly, you can buy and use it instantly via the App. I sincerely recommend this Japan SIM card to everyone!"
"Best Japan Internet Card I've Used! Great price & reliable signal 🤭"
Mr. A, Japan Travel Enthusiast
"For my graduation trip to Japan, I used the $138 package on a SoSIM. Having 8GB of Japan phone card data for 7 days was more than enough for all my needs. I've already bought my own SoSIM to use again later this month because there are so many choices for days and data volume. It's so simple! Just buy a basic Japan SIM card package first, and if you need more, you can top up instantly. "
"Perfect for My Grad Trip"
Mr. E, Fresh Graduate
"I originally planned to stay in Japan for two weeks, but I ended up staying for a whole month 😂! Because I had the SoSIM Japan internet card 30-day data package, I never had to worry about connectivity or Japan roaming issues 🤣. My trip was so much more chill and spontaneous because I didn't have to stress about data at all. It made everything so much easier!"
"Stayed a Whole Month Without Worry"
Ms. F, Long-Term Japan Traveller
SoSIM Japan Data Card | FAQs
SoSIM Japan Data Card
FAQs
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1. Is the SoSIM Japan data card only for internet use?  2. What is the difference between a local Japan SIM and SoSIM? 3. How can I buy SoSIM Japan packages at a better price? 4. How does SoSIM compare to other Japan data cards? 5. Do I need to change my phone settings? 6. How many types of Japan internet card packages does SoSIM offer? 7. Does Japan data card package validity start immediately after purchase? 8. Can I only use one specific network in Japan? 9. In Hong Kong, SoSIM uses 4.5G network; in Japan, is it limited to standard 4G like the other Japan SIMs? |
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