1 · The short answer
Okinawa is Japan's beach holiday: a long main island with no railway beyond Naha's monorail, and chains of smaller islands reached by ferry or a short flight. Every travel eSIM covers it with its Japan plan. We priced the six that get most of the traffic on the same day and looked at what your phone has to do on a road trip, a boat and a typhoon day.
Unlimited data at full speed for 2 weeks at $26.99 or 30 days at $50.99, nothing renews. Enough for maps all day and photos sent from the beach.
On NTT Docomo and KDDI, the two networks with the widest reach. 10 GB for 30 days at $16.50.
3 days of unlimited at $11, on KDDI au and SoftBank. Ringo Light sells no 3-day plan.
Days, not gigabytes, on KDDI and SoftBank. $27.50 for a week; sharing limited to 1 GB a day.
Prices read on 27 September 2026: Airalo, Holafly, Saily, Nomad, Ubigi on their own sites or listings, Ringo Light from its catalogue. All in US dollars unless stated. Treat every number as a snapshot.
See the full price index for every country.
Travelling further? Compare the best eSIM for Asia and the eSIM for Asia-Pacific.
2 · The prices, charted
US dollars, 27 September 2026. Ringo Light and Nomad sell 14 days, the others 15. Ubigi's 15 days is 30 GB at full speed, then 2 Mbps.
The 30-day plan at each brand. Ringo Light is unlimited data at full speed. Ubigi's month is 60 GB at full speed, then 2 Mbps. Nomad stops at 21 days.
Holafly sells no buckets. Ringo Light sells no bucket either: its 2 weeks is unlimited, and lasts 2 weeks, not 30 days.
3 · Side by side
Swipe to compare →
Get Ringo Light for Okinawa, from $26.99.
Installed once, next to your own SIM. Your eSIM arrives by email in seconds.
We sell data eSIMs for now to fund the full Ringo service. Ringo is self funded. Every plan bought here pays for the build of one plan that works everywhere.
Want to keep your own number abroad?
That is the full Ringo service: one plan that works everywhere, with your own number included.
It is a separate product from Ringo Light and it is still being built, so it is not on sale yet. Join the waitlist to hear when it opens.
4 · What to do in Okinawa, and what your phone does for you there
Seven places for a first trip to Okinawa: four on the main island, a short ferry ride, and two islands a flight away. All have 4G or 5G in town; out at sea and on remote beaches, plan offline.
5 · Getting online at Naha Airport
Almost every trip to Okinawa starts at Naha Airport, on flights from Tokyo, Osaka, Seoul, Taipei and elsewhere in Asia. There is 4G and 5G at the gate. Install your eSIM at home, switch it on for data when you land, and you can find the rental car shuttle or the monorail straight away.
The Yui Rail monorail runs from the airport through Naha to Shuri and on to Urasoe. Beyond the city there is no train, so most visitors rent a car. Rental car navigation in Okinawa often asks for a phone number or a Mapcode; your phone's maps app is usually simpler, so bring a phone mount.
6 · Coverage on the main island and the outer islands
NTT Docomo, KDDI au and SoftBank all cover the main island from Naha to the north, the expressway and the resort coast of Onna. The Kerama Islands, Ishigaki and Miyako have coverage in their towns and along the main roads.
The gaps are at sea and at the far ends of the islands: on a dive boat out to a reef, in the forests of the Yanbaru in the far north, and on remote beaches. Download the island in your maps app before you leave the hotel. If you plan a long road trip through the north or around the outer islands, Docomo, which Ubigi uses, reaches furthest.
7 · Typhoon season, and why data matters on bad days
Typhoons can reach Okinawa from roughly June to October. When one comes, ferries to the outer islands stop, flights are cancelled and shops close for a day or two. The ferry companies and airlines post status updates online, and the Japan Meteorological Agency publishes the storm's track. Keep your data on and check them before you head to the port.
8 · Which plan fits an Okinawa trip
A long weekend in Naha: Nomad sells 3 days of unlimited at $11. Ringo Light sells no 3-day plan.
A week or ten days with a car and an island or two: a 7-day plan costs $25 at Nomad, $26.50 at Airalo and $27.50 at Holafly. Ringo Light sells no 7-day plan, but its 2 weeks of unlimited data at full speed costs $26.99, only $1.99 more than Nomad's week and twice as long.
A month on the beach, or Okinawa added to a trip round mainland Japan: Ringo Light 30 days at $50.99, one eSIM for the whole country.
9 · What Ringo Light is
Ringo Light is our own data eSIM, sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. For Japan, Okinawa included, it sells two trips, both unlimited data at full speed: 2 weeks at $26.99 and 30 days at $50.99. Nothing renews. The eSIM arrives by email in seconds and installs in one scan, no app.
It sells no buckets. For a fixed 10 GB, Nomad, Ubigi, Saily and Airalo are all cheaper. The card to buy Ringo Light is further up this page, just after the side-by-side table.
10 · Pick by trip
Nomad unlimited, 3 days, $11. Ringo Light sells no 3-day plan.
Ringo Light unlimited, 2 weeks, $26.99, only $1.99 more than the cheapest 7-day plan here and twice as long.
Ubigi on Docomo for the widest reach, 10 GB for 30 days at $16.50, or Ringo Light 2 weeks at $26.99 for unlimited.
Ringo Light unlimited, 30 days, $50.99.
11 · Frequently asked questions
12 · How we compared, and our sources
We priced Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for Okinawa on 27 September 2026, all on the same day, in US dollars. Each rival's price comes from its own website where it showed dollars, otherwise from an esimdb.com listing, and every source and its date is listed below. Ringo Light's prices come from the catalogue our checkout charges.
We compare the trips people actually book: a week, two weeks and a month of unlimited data, and a 10 GB bucket. We read each brand's fair use and speed rules and quote them as the brands state them. We did not run speed tests, so this page makes no speed claims for any brand.
Ringo Light is our own product. We put it in the table on the same terms as everyone else, and where a rival is the better buy the page says so.
Left out: Revolut. It sells Japan data plans of 1 GB for 7 days up to 20 GB for 30 days inside its banking app, for Revolut account holders only. Its website shows the plan sizes and a starting price in pounds, but no price per plan in dollars, and no unlimited plan, so it has no bar in the charts. Left out: Maya Mobile. We could not read its own prices for this country on the day, so it stays out rather than being guessed.
- Airalo: www.airalo.com/japan-esim?currency=USD, unlimited in dollars on the site; buckets from esimdb.com/japan/airalo, 23 September 2026
- Holafly: esim.holafly.com/esim-japan/
- Saily: esimdb.com/japan/saily, listing dated 1 July 2026; saily.com refused the fetch
- Nomad: esimdb.com/japan/nomad, listing dated 20 September 2026; networks from nomadesim.com/japan-esim
- Ubigi: esimdb.com/japan/ubigi, listing dated 16 September 2026; networks from cellulardata.ubigi.com
- Ringo Light: our own catalogue, the prices the checkout charges on 27 September 2026.
Written and priced by the Ringo team. Prices change often; if you spot one that has moved, tell us through the contact page and we will update the table.
