ahamo 40GB and 120GB Data Trial Guide
Check ahamo's August 2026 data trial: automatic 40GB or 120GB at unchanged prices, no rollover, no announced end date, and a separate 30GB overseas cap.
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Explore Japan SIM and eSIM questions by topic.
These articles cover before-arrival setup, English support, brand comparisons, and other practical questions. Each article is a standalone page with publish and update dates.
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Will Your Phone Work With a Japan SIM?
Before buying a Japan SIM or eSIM, check your phone's exact model, network lock, eSIM support, carrier bands, APN setup, and voice/SMS fit.
ahamo eSIM Setup and Recovery: Avoid Lockout
Move or activate an ahamo eSIM safely: check Wi-Fi, EID, when an SMS code is required, profile-deletion recovery, and possible shop fees.
povo 180-Day Rule: Keep Your Line Active
Keep a povo backup line active by checking when the 180-day clock starts, ¥660 usage and code exceptions, warning notices, 30-day termination risk, and recovery steps.
ahamo 30GB vs 110GB: Large Data Offer Guide
For Japan residents who need a phone number, compare ahamo 30GB and 110GB, five-minute calls, the three-month Large Data dPOINT offer, entry, app claims, and name matching.
Rakuten Residence Card IC Address Check
Before applying for Rakuten Mobile, check the residence-card issue date, IC-chip address, June 14, 2026 card type, shop route, eSIM limits, and name/address matching.
Japan Resident Roaming Comparison: Summer 2026
Compare ahamo's 30GB in 91 areas, Rakuten's 2GB in 107 areas, povo's overseas-topping bonus through September 30, and LINEMO's separate packs and eligibility before leaving Japan.
Rakuten Tiered Plan and Link App Guide
Choose Rakuten Mobile at 3GB, 20GB, or unlimited; check Rakuten Link call rules, the August 5 app migration, supported OS, resident identity, payment, roaming, and July 20GB campaign.
Osaka eSIM for Tourists: 24-Hour Data Offer Guide
Check current Osaka eSIM prices, the OSAKA2025 24-hour data offer, foreign-number SMS verification, eSIM setup, 90-day closure, and its no-call/no-SMS limits.
LINEMO July 27–August 2 Campaign Guide
Check LINEMO's July 27–August 2 PayPay boost and ¥3,850 fee waiver by MNP, new-number, or SoftBank-family route, then prepare identity, payment, activation, and reward timing.
LINEMO Best Plan: 3GB, 10GB or 30GB?
Choose LINEMO Best Plan at 3GB or 10GB versus Best Plan V at 30GB with five-minute calls, then check the July 2026 early-cancellation fee, resident documents, payment, and eSIM fit.
Rainbow × ahamo Campaign 2026 Entry Guide
Check the July 31 and August 31 Rainbow × ahamo deadlines, linked d Account and ahamo-number rules, Japan address requirements, comedy access, prize draw, and why this is not a bill or data discount.
povo Data Oasis at 83 JR East Stations
See how povo Japan SIM users can claim 0.5GB for 24 hours at 83 JR East-area stations, with daily and monthly limits, location checks, setup risks, and data-only SMS limits.
LINEMO New Residence Card Identity Check Guide
Before applying to LINEMO with a residence card issued from June 14, 2026, check app-reading limits, delivery identity verification, eSIM activation, passport rules, and name/address matching.
Japan Mobile Referral Campaigns: Rakuten, ahamo, LINEMO
Compare active Rakuten Mobile, ahamo, and LINEMO referral routes by MNP or new-number reward, referral-link timing, account setup, SIM-only rules, activation deadlines, and campaign overlap.
povo AUKAITEKI Second-Line Campaign Guide
Check povo's live AUKAITEKI second-line offer: ten 24-hour unlimited-data codes, code-before-application timing, SIM activation, email delivery, plan choice, and multi-line limits.
Rakuten Galaxy Campaign: 23,000-Point Checklist
Check Rakuten Mobile's live Galaxy campaign: the conditional 23,000-point stack, entry timing, MNP, Galaxy S26 purchase, Rakuten Link, residence-card checks, and the 7,000-point upgrade route.
povo First-Month Subscription Refund Guide
Check povo's first-month subscription offer: 5GB and 30GB prices, au PAY refund, the seven-day purchase clock, Calls + Data eligibility, identity checks, renewal, and cancellation.
ahamo Residence Card eKYC Limit Guide
Check ahamo before applying with a new residence card: second-generation cards issued from 2026-06-14, identity matching, alternative counters, eSIM setup, and when another plan route is safer.
Why Temporary Visitors Struggle With Japan Voice SIMs
A practical guide for Temporary Visitors in Japan: why voice/SMS SIM plans often require resident-style checks, when data-only eSIM is enough, and when a Japanese phone number needs a different route.
povo Bulk Unlimited Data Topping Guide
Check povo bulk unlimited data toppings before buying: July 2026 sale timing, the 9,834 yen 12-use option, email prepaid codes, eSIM setup, SMS limits, and when a phone-number plan is safer.
JAL Mobile powered by ahamo Miles Guide
Check JAL Mobile powered by ahamo before applying: June 25, 2026 launch, ahamo 30GB pricing, five-minute calls, overseas data, JAL miles, LSP, application-route checks, and existing ahamo cautions.
povo Japan SIM for MyJapan+ JCB Visitor Guide
Check povo Japan SIM for MyJapan+ before buying: launch pricing through Sep 30, 2026, Taiwan phone number and Taiwan-issued JCB card requirements, eSIM-only setup, no calls/SMS, and when to choose another Japan SIM route.
povo Calls + Data vs Data-Only: ID and SMS Guide
Choose between povo calls + data and data-only by checking identity documents, eSIM limits, SMS setup, MNP, Japan SIM visitor routes, and phone-number needs before applying.
Rakuten Points vs dPOINT vs PayPay vs au PAY Rewards
Compare Rakuten Points, dPOINT, PayPay Points, au PAY balance, and cashback by real usability, account setup, app access, MNP rules, and foreign-resident application checks.
Rakuten Mobile Device Campaign Guide
A current guide to Rakuten Mobile iPhone 17, iPhone 17e, and Android device campaigns, covering MNP, device purchase, Rakuten Card installments, Rakuten Link, and identity checks.
povo Japan SIM Online vs LAWSON Buying Route Guide
A current guide to povo Japan SIM buying routes, covering online credit-card eSIM, LAWSON cash cards, data-pack choices, SMS verification, eSIM setup, Data Oasis, and no calls/SMS limits.
ahamo Referral Campaign 7,000 / Up to 13,000 dPOINT Guide
A current guide to ahamo's referral campaign, covering 7,000 referrer points, up to 13,000 MNP invitee points, 6,000 new-number points, d account entry, SIM/eSIM-only rules, and campaign overlap.
povo 2MAIME New Registration Bonus Guide
A current guide to povo's 2MAIME new-registration campaign code, covering the 1GB/3-day bonus, lottery bonus, code entry, SIM activation, email timing, and data-only vs calls+data fit.
Rakuten Mobile First Application 10,000 / 7,000 Points Guide
A current guide to Rakuten Mobile's first-application points campaign, covering 10,000 MNP points, 7,000 new-number points, entry timing, Rakuten Link, data-type exclusions, and identity checks.
Rakuten Mobile Referral Campaign 7,000 / 13,000 Points Guide
A current guide to Rakuten Mobile's referral campaign, covering 7,000 referrer points, up to 13,000 referred-user points, Rakuten Link, data-type exclusions, identity checks, and campaign stacking.
povo Friend Referral LAWSON Coupon Campaign Guide
A June 2026 guide to povo's friend referral campaign, covering the 500 yen LAWSON coupon chance, referral code, calls+data eligibility, SIM/eSIM activation, and data-only exclusions.
LINEMO PayPay Points Campaign Guide
A current guide to LINEMO Best Plan and Best Plan V PayPay point campaigns, covering MNP vs new-number rewards, opening deadlines, plan-stay rules, PayPay setup, identity, payment, and visitor limits.
povo Honkiwari 40% au PAY Campaign Guide
A current guide to povo's Honkiwari 365-day topping campaign, 40% au PAY balance, MNP calls+data eligibility, the 7-day purchase window, au ID setup, and data-only limits.
ahamo SIM-Only MNP 20,000 dPOINT Campaign Guide
A current guide to ahamo's SIM-only MNP 20,000 dPOINT campaign, covering entry timing, d account matching, eSIM, no-phone-purchase rules, overlapping campaigns, and visitor limits.
Rakuten U-NEXT + Uber Campaign: New Resident Guide
A June 2026 guide to Rakuten Saikyo U-NEXT + Uber, covering 5,000 Rakuten points, Uber One first-year free, resident SIM checks, residence-card friction, SMS, and tourist limits.
povo x Coincheck Bitcoin Campaign: 2026 Guide
A June-July 2026 guide to povo's Coincheck Bitcoin campaign, eligible toppings, Coincheck account opening, SMS, Japan residency checks, and visitor eSIM limits.
povo Paidy Cashback Campaign: June 2026 Guide
A June 2026 guide to povo 2.0's first-use Paidy cashback campaign, eligible toppings, 12-installment checks, identity verification, SMS, and data-only plan limits.
LINEMO 5th Anniversary Campaign for Foreign Residents
A June 2026 guide to LINEMO's 5th Anniversary Dai Shukakusai campaign, referral rewards, weekly offers, PayPay points, activation-fee discounts, and foreign-resident application checks.
LINEMO LINE Giga Free for Foreign Residents
A practical LINEMO guide for foreign residents who rely on LINE, covering LINE Giga Free, pricing, identity checks, eSIM, payment, Japanese address requirements, and when a tourist data eSIM is simpler.
povo Japan SIM for Visitors: Online and LAWSON Guide
A visitor guide to povo Japan SIM, covering online purchase, LAWSON cards, current data packs, SMS verification, eSIM setup, data-only limits, and when to choose a phone-number plan instead.
povo for Japan Visitors Who Do Not Need a Phone Number
A visitor-focused guide to when povo Japan SIM fits travelers who only need maps, translation, messaging, and web access, plus the SMS, device, payment, and phone-number limits to check.
povo 2.0 Data-Only eSIM Without ID: What Visitors Should Check
A practical guide to povo 2.0 data-only eSIM for visitors and backup lines, covering no-ID activation, SMS limits, first topping purchase, eSIM compatibility, payment, and 2026 identity-check changes.
ahamo Overseas Roaming in 91 Countries: Resident Guide
A resident-focused guide to ahamo overseas roaming in 91 countries, covering the 30GB cap, 15-day speed limit, voice and SMS costs, eSIM setup, and when to compare another Japan plan.
Rakuten Mobile English Support for Foreign Residents
A resident-focused Rakuten Mobile guide for English support, residence card verification, eSIM setup, payment, Japanese phone number needs, and when to compare another plan.
LINEMO Multilingual Application Guide for Foreign Residents
A practical LINEMO guide for foreign residents, covering multilingual application pages, identity verification, eSIM limits, payment, Japanese address requirements, and when to compare another Japan SIM plan.
Data-Only eSIM for Japan: No Phone Number Needed
A practical guide for Japan visitors who only need data for maps, translation, messaging, and web access, including when data-only eSIM is enough and when a Japanese phone number or SMS-capable plan is needed.
How to Choose the Best eSIM for Japan
Choose the right eSIM for Japan by comparing support, roaming, LINE usage, and short- and long-stay needs before you apply.
Rakuten Mobile English Support
A focused guide to Rakuten Mobile English support, application steps for international users, and when it should be the first plan to check in Japan.
Japan eSIM Before You Arrive
Prepare a Japan eSIM before you arrive with a practical checklist for phone compatibility, application flow, QR setup, and landing-day activation.
Rakuten Mobile vs ahamo
Compare Rakuten Mobile and ahamo by price, data, roaming, calls, support, and the situations where each plan makes more sense.
Japan SIM Card Guide for Foreign Residents and Visitors
A practical guide for foreign residents and visitors choosing a Japan SIM card or eSIM, including identity verification, payment, support, stay length, and setup effort.