FlyoSIM
FlyoSIM: A low-cost Japan eSIM with fixed-data and capped high-speed unlimited options. Ranked #40 of 60 in Japan eSIM Plans by our editors (4.7/10); pricing: From $2; best for budget travelers needing a simple short-stay eSIM.
At a glance
- Editor score4.7 / 10
- PricingFrom $2
- Best forBudget travelers needing a simple short-stay eSIM
- Free planNo
- Data typeUnlimited
- Facts checked3 Oct 2026
Where it wins
- Japan plans start at a one-time $2
- Choose between fixed data and unlimited data options
- Digital delivery and guidance for compatible unlocked devices
Where it doesn't
- The $2 unlimited plan includes 500 MB/day at high speed
- Plans are data-only, without voice, SMS, or a phone number
- Connectivity runs through partner networks, not FlyoSIM infrastructure
Our verdict on FlyoSIM
FlyoSIM sells prepaid, data-only travel eSIMs, including Japan plans aimed at travelers who want a low-cost option for a short stay. The Japan catalog offers fixed-data and unlimited choices, with plan-specific allowances and validity. Its lowest listed price is a one-time $2, and profiles are delivered digitally after checkout. Travelers need an unlocked device that supports eSIM; FlyoSIM provides compatibility guidance. This is a focused fit for people who need mobile data rather than a local phone number or conventional calling and texting.
The two listed Japan options illustrate the trade-off between data types. The one-time $2 plan is labeled unlimited, but its high-speed allowance is 500 MB per day, so it should not be read as unlimited full-speed data. The fixed-data option costs $2.40 one time and includes 1 GB. Both are prepaid, and FlyoSIM says the Japan catalog's availability and final prices are checked again before payment. Compare the stated allowance and validity of the selected plan against your expected use before checkout; the headline unlimited label alone does not describe its high-speed limit.
FlyoSIM distributes plans that connect through partner mobile networks in Japan and does not operate its own telecommunications infrastructure. Network and activation terms depend on the plan, so the selected offer's terms matter. The service is data-only unless a specific plan says otherwise; voice, SMS, and a phone number are not included by default. Choose FlyoSIM if a digitally delivered, low-cost data plan suits a compatible unlocked device and you can work within the plan's allowance. Travelers who require calling, texting, or full-speed data beyond the stated daily high-speed allowance should compare alternatives that explicitly include those needs.
FlyoSIM pricing
All 2 FlyoSIM plans and prices →
FlyoSIM fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Data type | Unlimited |
| Data allowance | Unlimited data; 500 MB/day high-speed on the cheapest plan |
| Validity | 1 days |
| Hotspot support | Not verified |
| Coverage scope | Japan_only |
| Activation timing | Not verified |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android |
| Support | |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | From $2 (source) |
| Website | flyosim.com |
| Facts checked | 3 Oct 2026 |
Alternatives to FlyoSIM
- AiraloA broad Japan eSIM lineup with app tracking, low-data alerts, and eligible top-ups.9.3
- Orange TravelA flexible prepaid choice, from a €1 1 GB bundle to larger and unlimited plans.9.1
- Vodafone Travel eSIMJapan data plans range from fixed bundles to unlimited and shared options.9.0
See all FlyoSIM alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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