Prepaid travel eSIM
3GB of high-speed data to use over 30 days in Japan. Your internet traffic exits in Hong Kong. Some services, such as ChatGPT and Google Gemini, aren't available on Hong Kong IPs. Choose the Non-HK IP version if you need them.
Nomad charges US$7.00 for the same 3GB, 30-day plan, checked 9 November 2026 on nomadesim.com. Graba SIM charges US$5.49.
Both prices in US dollars, no conversion. Selected providers, not a market-wide cheapest claim. Prices can change.
See the full price comparisonNomad charges US$7.00 for the same 3GB, 30-day plan (its own price in US dollars, checked 9 November 2026 on nomadesim.com).
At the European Central Bank reference rate on 9 November 2026, US$1.00 = £0.7454, so that is about £5.22. Graba SIM charges £3.49 in pounds, with no conversion.
Approximate: your card provider’s exchange rate and fees may differ. Not a market-wide cheapest claim.
See the full price comparisonNomad charges US$7.00 for the same 3GB, 30-day plan (its own price in US dollars, checked 9 November 2026 on nomadesim.com).
At the European Central Bank reference rate on 9 November 2026, US$1.00 = €0.8934, so that is about €6.25. Graba SIM charges €4.49 in euros, with no conversion.
Approximate: your card provider’s exchange rate and fees may differ. Not a market-wide cheapest claim.
See the full price comparisonNomad charges US$7.00 for the same 3GB, 30-day plan (its own price in US dollars, checked 9 November 2026 on nomadesim.com).
At the European Central Bank reference rate on 9 November 2026, US$1.00 = A$1.4505, so that is about A$10.15. Graba SIM charges A$7.49 in Australian dollars, with no conversion.
Approximate: your card provider’s exchange rate and fees may differ. Not a market-wide cheapest claim.
See the full price comparisonNomad charges US$7.00 for the same 3GB, 30-day plan (its own price in US dollars, checked 9 November 2026 on nomadesim.com).
At the European Central Bank reference rate on 9 November 2026, US$1.00 = C$1.4103, so that is about C$9.87. Graba SIM charges C$7.49 in Canadian dollars, with no conversion.
Approximate: your card provider’s exchange rate and fees may differ. Not a market-wide cheapest claim.
See the full price comparison
Japan 3GB eSIM for 30 days. Compare the price, then choose the features that fit your trip.
Comparison prices are in GBP. Converted from each provider’s own price at a dated ECB reference rate.
Same data. Same duration. A lower price.
Graba SIM £3.49 vs Nomad ≈ £5.22 (US$7.00 as listed) for Japan 3GB eSIM for 30 days. Checked . Converted at the European Central Bank reference rate on 9 November 2026; your card provider’s rate may differ.
| Provider | Data / validity | Plan price | Price difference | Evidence |
|---|---|---|---|---|
| Graba SIMThis plan | 3GB / 30 days | £3.49 | Current Graba SIM price | View this plan |
| Nomad | 3GB 30 days | ≈ £5.22US$7.00 as listed | Save ≈ £1.73 with Graba SIM | View source |
Selected verified providers, not a market-wide cheapest claim. Matching data allowance, destination and validity; networks, speeds, routing, activation and top-up terms can differ. Public prices at the time checked, including promotions where identified. Rival prices converted at a dated ECB reference rate for guidance; the provider’s own price is shown beside each one. No voucher codes. Prices may change; verify with the provider before buying. Smaller, larger, daily and unlimited plans are excluded.
We compare Graba SIM’s current published price with the linked provider’s public price for 3GB in Japan for 30 days, in the same currency. Savings are the competitor price minus the Graba SIM price; percentages are rounded down. Lower competitor prices are included when verified. This comparison expires automatically within seven days of verification, or is removed if our plan price changes.
Competitor names identify their own services. Graba SIM is independent and is not affiliated with or endorsed by these providers.
Same data. Same duration. A lower price.
Graba SIM US$5.49 vs Nomad US$7.00 for Japan 3GB eSIM for 30 days. Checked .
| Provider | Data / validity | Plan price | Price difference | Evidence |
|---|---|---|---|---|
| Graba SIMThis plan | 3GB / 30 days | US$5.49 | Current Graba SIM price | View this plan |
| Nomad | 3GB 30 days | US$7.00 | Save US$1.51 with Graba SIM | View source |
Selected verified providers, not a market-wide cheapest claim. Matching data allowance, destination and validity; networks, speeds, routing, activation and top-up terms can differ. Public prices at the time checked, including promotions where identified. No exchange-rate conversion. No voucher codes. Prices may change; verify with the provider before buying. Smaller, larger, daily and unlimited plans are excluded.
We compare Graba SIM’s current published price with the linked provider’s public price for 3GB in Japan for 30 days, in the same currency. Savings are the competitor price minus the Graba SIM price; percentages are rounded down. Lower competitor prices are included when verified. This comparison expires automatically within seven days of verification, or is removed if our plan price changes.
Competitor names identify their own services. Graba SIM is independent and is not affiliated with or endorsed by these providers.
Same data. Same duration. A lower price.
Graba SIM €4.49 vs Nomad ≈ €6.25 (US$7.00 as listed) for Japan 3GB eSIM for 30 days. Checked . Converted at the European Central Bank reference rate on 9 November 2026; your card provider’s rate may differ.
| Provider | Data / validity | Plan price | Price difference | Evidence |
|---|---|---|---|---|
| Graba SIMThis plan | 3GB / 30 days | €4.49 | Current Graba SIM price | View this plan |
| Nomad | 3GB 30 days | ≈ €6.25US$7.00 as listed | Save ≈ €1.76 with Graba SIM | View source |
Selected verified providers, not a market-wide cheapest claim. Matching data allowance, destination and validity; networks, speeds, routing, activation and top-up terms can differ. Public prices at the time checked, including promotions where identified. Rival prices converted at a dated ECB reference rate for guidance; the provider’s own price is shown beside each one. No voucher codes. Prices may change; verify with the provider before buying. Smaller, larger, daily and unlimited plans are excluded.
We compare Graba SIM’s current published price with the linked provider’s public price for 3GB in Japan for 30 days, in the same currency. Savings are the competitor price minus the Graba SIM price; percentages are rounded down. Lower competitor prices are included when verified. This comparison expires automatically within seven days of verification, or is removed if our plan price changes.
Competitor names identify their own services. Graba SIM is independent and is not affiliated with or endorsed by these providers.
Same data. Same duration. A lower price.
Graba SIM A$7.49 vs Nomad ≈ A$10.15 (US$7.00 as listed) for Japan 3GB eSIM for 30 days. Checked . Converted at the European Central Bank reference rate on 9 November 2026; your card provider’s rate may differ.
| Provider | Data / validity | Plan price | Price difference | Evidence |
|---|---|---|---|---|
| Graba SIMThis plan | 3GB / 30 days | A$7.49 | Current Graba SIM price | View this plan |
| Nomad | 3GB 30 days | ≈ A$10.15US$7.00 as listed | Save ≈ A$2.66 with Graba SIM | View source |
Selected verified providers, not a market-wide cheapest claim. Matching data allowance, destination and validity; networks, speeds, routing, activation and top-up terms can differ. Public prices at the time checked, including promotions where identified. Rival prices converted at a dated ECB reference rate for guidance; the provider’s own price is shown beside each one. No voucher codes. Prices may change; verify with the provider before buying. Smaller, larger, daily and unlimited plans are excluded.
We compare Graba SIM’s current published price with the linked provider’s public price for 3GB in Japan for 30 days, in the same currency. Savings are the competitor price minus the Graba SIM price; percentages are rounded down. Lower competitor prices are included when verified. This comparison expires automatically within seven days of verification, or is removed if our plan price changes.
Competitor names identify their own services. Graba SIM is independent and is not affiliated with or endorsed by these providers.
Same data. Same duration. A lower price.
Graba SIM C$7.49 vs Nomad ≈ C$9.87 (US$7.00 as listed) for Japan 3GB eSIM for 30 days. Checked . Converted at the European Central Bank reference rate on 9 November 2026; your card provider’s rate may differ.
| Provider | Data / validity | Plan price | Price difference | Evidence |
|---|---|---|---|---|
| Graba SIMThis plan | 3GB / 30 days | C$7.49 | Current Graba SIM price | View this plan |
| Nomad | 3GB 30 days | ≈ C$9.87US$7.00 as listed | Save ≈ C$2.38 with Graba SIM | View source |
Selected verified providers, not a market-wide cheapest claim. Matching data allowance, destination and validity; networks, speeds, routing, activation and top-up terms can differ. Public prices at the time checked, including promotions where identified. Rival prices converted at a dated ECB reference rate for guidance; the provider’s own price is shown beside each one. No voucher codes. Prices may change; verify with the provider before buying. Smaller, larger, daily and unlimited plans are excluded.
We compare Graba SIM’s current published price with the linked provider’s public price for 3GB in Japan for 30 days, in the same currency. Savings are the competitor price minus the Graba SIM price; percentages are rounded down. Lower competitor prices are included when verified. This comparison expires automatically within seven days of verification, or is removed if our plan price changes.
Competitor names identify their own services. Graba SIM is independent and is not affiliated with or endorsed by these providers.
Graba SIM Family
One order for 2 to 6 people. Choose a plan for each person, lighter data for the kids and more for whoever is navigating, and every eSIM arrives labelled with their name.
Key facts
Popular apps on this plan
TikTok isn’t available in Hong Kong. OpenAI doesn’t offer ChatGPT in Hong Kong. Google doesn’t offer Gemini in Hong Kong.
Check your phone works with eSIMBuying for the family? Save up to 25%
TRAVELLING FROM THE UK
A week of mobile data abroad on your UK plan, next to this prepaid Japan eSIM. UK network prices include calls and texts from your UK plan; Graba SIM plans are data only, so keep your UK SIM on for calls and texts.
Prices in pounds for every network and for Graba SIM, so they compare like for like.
£7 a day × 7, O2 Travel Bolt On. Includes unlimited calls, texts and data, at up to 2 Mbps. Pay Monthly plans without roaming included.
7-day pass, Three Go Roam Around the World Extra. Includes your UK calls, texts and up to 12 GB of your UK data. Pay Monthly plans without roaming included.
Check what Vodafone charges in Japan in its roaming charge checker. Its European roaming passes only cover Zone B.
EE doesn’t publish one price for every country: it prices roaming by destination, plan and start date. Check EE’s roaming tool for Japan.
3GB for 30 days, data only. Lasts 30 days, longer than the week shown for the networks.
Published prices, checked 6 November 2026: O2 · Three · Vodafone · EE. Each price is for that destination’s own roaming zone. Some UK plans include roaming, so check yours before you travel. The Graba SIM price is the current plan price.
Full specification
Japan eSIM – 3GB, 30 Days
3GB over 30 days averages 100MB a day, but it is a total, not a daily cap.
| Use | Per day | Whole plan (3GB) |
|---|---|---|
| Maps and directions | about 10 hours | 300 hours |
| Browsing and social media (no video) | about 40 minutes | 20 hours |
| Video calls | about 15 minutes | 7 hours |
| Standard-definition video | about 10 minutes | 4 hours |
Rough guide: maps 10MB, browsing 150MB, video calls 400MB, standard video 700MB an hour.
Download Japanese translation packs and station maps before arrival.
This plan works in the following country
JapanJapanCompare
Price per GB in the currency you chose.
| Plan | Type | Price | Price per GB |
|---|---|---|---|
| 100MB · 7 days | Fixed data | £1.99 | £19.90 |
| 500MB · 7 days | Fixed data | £1.99 | £3.98 |
| 1GB · 7 days | Fixed data | £2.75 | £2.75 |
| 3GB · 15 days | Fixed data | £6.50 | £2.17 |
| 3GB · 30 daysThis plan | Fixed data | £3.49 | £1.16 |
| 5GB · 30 days | Fixed data | £5.49 | £1.10 |
| 10GB · 30 days | Fixed data | £8.99 | £0.90 |
| 20GB · 30 days | Fixed data | £13.99 | £0.70 |
| 50GB · 30 days | Fixed data | £62.99 | £1.26 |
| 50GB · 180 days | Fixed data | £103.75 | £2.08 |
GRABA PERKS · TRAVEL PARTNERS
Experiences, airport transfers and useful extras to go with your Graba SIM connection. Compare flights →
ExperiencesExplore activities, local experiences and transport options for your next destination.
Explore KKday ↗
TransfersArrange an airport pickup in advance. Review vehicle capacity, pickup instructions and cancellation terms.
FlightsExplore flight routes and fares. Check baggage, connection protection and change conditions before booking.
Country to country flights ↗
Car hireCompare car hire for a road trip. Check deposits, insurance excess, mileage and collection requirements.
Explore AutoEurope ↗Affiliate links: Graba SIM may earn a commission when you book through these links, at no extra cost to you. Bookings are with the partner. Availability, eligibility, prices and terms can change; check the final details before paying.
We email a QR code after you pay. iPhone guide · Samsung and Pixel guide · Installed but no data?
For messages, maps and some browsing every day, yes. Keep video and large uploads for Wi-Fi.
Add a top-up to the same eSIM or buy another Japan plan to keep going.
The next size up, 5GB for 30 days, is £5.49: £1.10 per GB, less per GB than the 3GB plan.
Explore your options
Same destinations as this plan