Skyline of Taipei, Taiwan viewed from Mount Elephant on June 29, 2022
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Best eSIM for Green Island, Taiwan

Green Island eSIM

Data for Green Island on Taiwan’s own networks. One Taiwan eSIM covers Green Island and the rest of the country. Install it at home, switch it on when you land, and keep your home number. Your NUM concierge for Green Island comes with it.

Rather text? Text ESIM TAIWAN

How long is your Green Island trip?

Get my Taiwan eSIM · $6.29
  • Apple Pay, Google Pay or card
  • One-tap install
  • Full refund if we can’t issue it

Photo: 毛貓大少爺, CC BY-SA 2.0

Pay, then open NUM: your install code is waiting in your chat, and we email it about five minutes after you pay. If we can’t issue it, you get a full refund.

The short answer

The best eSIM for Green Island, Taiwan is the one that fits your trip and your networks. For two weeks of photos, maps and social, NUM picks 5 GB for 30 days at $6.29, as of 3 Nov 2026.

Plans from$1.79 on 3 Nov 2026
A week3 GB, 15 days, $4.59 (regional plan, 14 countries)
Two weeks5 GB, 30 days, $6.29 (regional plan, 14 countries)
A month10 GB, 30 days, $9.89 (regional plan, 14 countries)
Longer20 GB, 90 days, $72.59 (regional plan, 127 countries)
Phone numberNone, data only
PaymentApple Pay, Google Pay or card

A regional plan may list fewer networks here than a local plan. If you need a particular network, check that plan’s network list in the shop before you pay.

Coverage in Taiwan: what to know

Chunghwa Telecom won coverage and 5G coverage outright in Opensignal's July 2026 report, plus most speed categories. Taiwan Mobile led reliability, and FarEasTone led 5G availability.

Checked 3 Nov 2026. Source: insights.opensignal.com. Coverage changes, so check your route before you rely on it.

How it works

  1. Pick your trip

    Choose 7, 14 or 30 days. The shop picks the data for how you use your phone, and shows the networks.

  2. Pay in seconds

    Apple Pay, Google Pay or a card. Then open NUM and join free: your install code is waiting in your chat.

  3. Install, then land online

    Install at home on wifi with one tap, switch it on as the plane lands, and you’re online walking off. Your home number stays on for calls and codes.

Green Island eSIM for 7, 14 and 30 days

Green Island eSIM for 7 days

$4.59

3 GB, valid 15 days, a regional plan covering 14 countries. Enough for maps, rides, messages and photos for a week.

Choose 7 days

Green Island eSIM for 14 days

$6.29

5 GB, valid 30 days, a regional plan covering 14 countries. Room for social, photos and a few video calls over two weeks.

Choose 14 days

Green Island eSIM for 30 days

$9.89

10 GB, valid 30 days, a regional plan covering 14 countries. A month of everyday use, with some streaming and hotspot.

Choose 30 days

Green Island eSIM for longer trips

$72.59

20 GB, valid 90 days, a regional plan covering 127 countries. For long stays, remote work and heavy use.

Choose longer trips

NUM’s pick for each trip length on 3 Nov 2026, for photos, maps and social. Prices in US dollars; the price on the pay button is the price you pay.

Taiwan data plans that work in Green Island

DataValid forNetworkPricePer GB
1 GB7 daysRegional plan, 14 countries$1.79$1.79
3 GB15 daysRegional plan, 14 countries$4.59$1.53
3 GB30 daysRegional plan, 14 countries$4.69$1.56
5 GB30 daysRegional plan, 14 countries$6.29$1.26
1 GB7 daysRegional plan, 117 countries$6.79$6.79
1 GB365 daysRegional plan, 117 countries$9.29$9.29
Taiwan eSIM price per GBPrice per GB for each Taiwan plan: 1 GB for 7 days, $1.79, about $1.79 a GB; 1 GB for 365 days, $9.29, about $9.29 a GB; 3 GB for 15 days, $4.59, about $1.53 a GB; 3 GB for 30 days, $4.69, about $1.56 a GB; 5 GB for 30 days, $6.29, about $1.26 a GB; 10 GB for 30 days, $9.89, about $0.99 a GB; 20 GB for 30 days, $18.29, about $0.91 a GB.1 GB · 7 days$1.79/GB1 GB · 365 days$9.29/GB3 GB · 15 days$1.53/GB3 GB · 30 days$1.56/GB5 GB · 30 days$1.26/GB10 GB · 30 days$0.99/GB20 GB · 30 days$0.91/GB
Shorter bar, less money per GB. The highlighted plan costs the least per GB in this list.

13 plans in the shop on 3 Nov 2026; 6 shown, least money first. See every plan and today’s prices.

How much data do you need in Green Island?

Estimated data a day in Green Island, by activityEstimated data a day: Maps and directions, 5–10 MB an hour, about 15 MB for 2 hours a day; Messages and browsing, 10–50 MB an hour, about 60 MB for 2 hours a day; Social feeds, 100–600 MB an hour, about 350 MB for 1 hour a day; Video calls home, 500 MB–1.5 GB an hour, about 500 MB for 0.5 hours a day; Streaming video, 300 MB–2 GB an hour, about 1000 MB for 1 hour a day.Maps and directions~15 MBMessages and browsing~60 MBSocial feeds~350 MBVideo calls home~500 MBStreaming video~1 GB
Estimates: two hours of maps and of messages, an hour of social, half an hour of video calls, an hour of video. Per-hour figures from esimcard.com; your phone and apps will differ.
Estimated data for a trip, by how you use your phone
How you use it7 days14 days30 days
Maps and messages1.4 GB2.8 GB6 GB
Plus social2.8 GB5.6 GB12 GB
Lots of video11 GB21 GB45 GB

Planning Green Island

Questions people ask about a Green Island eSIM

Does a Taiwan eSIM work in Green Island?

Yes. A Taiwan eSIM runs on Taiwan’s own networks, so the same plan works in Green Island and everywhere else those networks reach in the country. There is no separate Green Island plan to buy.

How much does an eSIM for Green Island cost?

On 3 Nov 2026, Taiwan plans started at $1.79 and went up to $72.59 for the biggest. NUM’s 7-day pick was 3 GB for $4.59. The shop always shows today’s price, and the price on the pay button is the price you pay.

How much data do I need for Green Island?

For a week of maps, rides, messages and photos most people use about 3 GB; for two weeks about 5 GB; for a month of social and video, 10 GB or more.

Can I use it as a hotspot?

Hotspot works on most plans, so one eSIM can get a laptop or a travel partner online too.

Why does my eSIM show another carrier’s name?

Many travel eSIMs are issued by one carrier and roam on local networks, so your phone can show the issuing carrier’s name while your data runs on a local network. Keep data roaming on for the eSIM.

Will it work on my phone?

Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.

When do I install it?

At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.

Does it come with a phone number?

No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.

What if it doesn’t work?

If we can’t issue your eSIM, we refund you in full. If it won’t install or connect, text us and we help you get connected.

An eSIM with a Green Island concierge inside.

Text NUM a table for tonight, a driver at 6 am or a pharmacy that’s open now in Green Island. Any language, any hour, on the data you just bought.

Get my Green Island eSIM
Green Island eSIMfrom $1.79Get it