The best eSIM for Taiwan is the one that keeps you online without any fuss, and on an island this packed, you’ll lean on it constantly. Decoding a night market menu, catching the high-speed rail to Kaohsiung, finding a mountain hot spring, it all runs on data that just works.
There’s one thing worth knowing before you pick. Taiwan’s networks split neatly in two: Taiwan Mobile and FET dominate the cities, while Chunghwa Telecom is the one that actually holds up in the mountains and along the east coast. Most providers here ride the urban networks. Only one reaches Chunghwa, and that matters a lot if Taroko, Alishan or Sun Moon Lake are on your route. Saily takes our top spot, but the best pick depends on where you’re going.
Best Taiwan eSIM: Top 5 Picks Ranked
5 Best eSIMs for Taiwan Tested and Reviewed
We spent two weeks putting these eSIMs through their paces in Taipei, Taichung and Kaohsiung. We tracked download speeds, how well each held a signal on the move, setup time, network access, and the real value of each plan against its price.
| Saily | Ubigi | Holafly | Airalo | Nomad | |
| Start Price | $3.39 (1 GB / 7d, with GIZMODO) | $3 (1 GB / 7d) | $6.90 (unlimited / 1d) | $4 (1 GB / 3d) | $4 (1 GB / 7d) |
| Network Partner | Undisclosed | FET, Taiwan Mobile | Undisclosed | Taiwan Mobile | Taiwan Mobile, Chunghwa Telecom |
| 5G in Taiwan | Yes, consistent | Yes, some LTE dips | Yes, frequent LTE | Yes, 80% of the time | Yes, even rurally |
| Unlimited Fine Print | 5 GB/day, then 1 Mbps | No speed cap | No speed cap | No speed cap | Up to 10 days only |
| Tethering | Unlimited | Unlimited | 1 GB/day | Unlimited | Unlimited |
| Calls/SMS | No | No | No | No | No |
| Our Favorite Feature | Security tools (ad blocker, web protection, virtual locations) | Offline data top-ups | Unlimited data, never throttled | Flexible plans and pricing | Rural coverage in Taiwan |
1. Saily: Best Overall (15% OFF with GIZMODO promo code)
Pros
- Cheapest entry plan at $3.39
- Ad blocker (data saver)
- 115+ virtual locations for privacy
- Unlimited tethering
Cons
- Unlimited plans throttle after 5 GB a day
- Network partner undisclosed
Saily delivered the best performance in Taiwan. Constant 5G, with no LTE drops we can recall, fast speeds and security tools nobody else here bundles: an ad blocker, a malicious URL blocker and 115+ virtual locations. NordVPN itself comes with the Ultra plan. It starts at $3.99 for 1 GB over 7 days, or $3.39 with the GIZMODO code.
We used the unlimited plan at $48.99 for 15 days, which the code takes to $41.64, with zero issues. It activates as soon as you’re on Taiwanese soil, so roaming never gets a look in. We travelled as a trio and bought one eSIM between us, since tethering is uncapped.
One caveat on that unlimited plan: you get 5 GB per day at full speed, then stay connected at 1 Mbps. Fine for maps and messaging, less so for a fortnight of streaming, which is precisely why Holafly earns its place below.
On metered plans, Saily supports auto top-ups, so you never run dry. Support is 24/7, and in 2026 the app added airport lounge access and fast-track passes at checkout. Saily was also named “Rising Star” at the MVNOs World Congress in Amsterdam in June.
One thing that still annoys us is the lack of transparency. Saily doesn’t disclose its network partner, saying only that it works with multiple local operators. It matters here, because Chunghwa Telecom is the network that holds up in rural Taiwan, while Taiwan Mobile and FET dominate the cities. Our speeds suggest Saily is on the urban networks.
2. Ubigi: Best Travel eSIM for Taiwan
Pros
- Two networks: FET and Taiwan Mobile
- Valuable Asia regional plans
- Offline top-ups
- 24/7 customer support
Cons
- LTE dips outside the cities
- Dated website interface
We tested Ubigi on its 15-day Taiwan plan at $39 with unlimited data. Running on FET and Taiwan Mobile, we mostly had 5G, with noticeable dips to LTE in a few spots, Sun Moon Lake among them. That’s the urban-network story in a nutshell: excellent in the cities, thinner once the road climbs. Even so, Ubigi held up, staying fast and reliable for streaming and posting.
Activation is a simple QR code, and unlimited tethering covered our testing trio. We also tested its Asia plan, which includes Taiwan, ideal for digital nomads. When we crossed to Japan afterwards, the same eSIM carried on working without a hitch.
Support runs 24/7, though we never needed it: it worked consistently across Taiwan and the rest of Asia. Ubigi starts at $3 for 1 GB over 7 days, the cheapest entry point on this page in July 2026.
3. Holafly: Unlimited eSIM Data in Taiwan
Pros
- Unlimited data with no speed cap
- Automatic activation on arrival
- Support replies almost instantly
- Cheaper per day on longer stays
Cons
- Frequent drops to LTE
- 1 GB/day tethering limit
Holafly is built for heavy usage. Every plan is unlimited, from $6.90 a day, so you can stream, download and scroll all day. We pushed it on VoIP calls over WhatsApp and Viber, and it held up without a hint of throttling, which is the point: Holafly’s unlimited data has no daily allowance and no speed cap at any point, unlike Saily, which slows to 1 Mbps after 5 GB a day.
That’s the case for buying it. The case against is coverage. Its network partner is undisclosed, and Holafly leaned on 4G more often than we expected in Taiwan, despite the island’s 5G-ready infrastructure. It works, but it isn’t the fastest here.
Tethering is capped at 1 GB per day, enough for browsing but not for streaming on a second device. Longer stays get cheaper, and we bought a 15-day plan at $50.90.
Its 24/7 live chat is the best on this page, replying almost instantly. Holafly is a good eSIM for travelers, and the one to take if you’re streaming for two weeks, but not if you want the fastest 5G in Taipei.
4. Airalo: Flexible Prices and Plans
Pros
- Consistent 5G on Taiwan Mobile
- Affordable and flexible plans
- Unlimited data sharing
Cons
- Data-only in Taiwan
- Slow support, two minutes to reply
Airalo has strong urban coverage thanks to Taiwan Mobile. We saw no 4G drops of note, and Airalo sat in 5G roughly 80% of the time. Speeds were ample for Netflix, WhatsApp video calls and social media. We took the 15-day unlimited plan at $43.50.
Pricing starts at $4 for 1 GB over 3 days if that’s all you need. Airalo stays consistently fast, activates automatically on arrival, and includes a data consumption tracker. Tethering is unlimited, which we used constantly, and support runs across several channels.
We pinged Airalo on WhatsApp purely to test it, and waited nearly two minutes for a reply. Not terrible, not great. It’s also data-only here, which is a shame given its eSIM for Brazil includes calls and SMS.
5. Nomad: The Only One on Chunghwa Telecom
Pros
- The only one reaching Chunghwa Telecom
- 5G even in remote areas
- Free 1 GB for new users
Cons
- Confusing plan durations
- No security extras
Nomad is the best eSIM for Taiwan if your trip leaves the cities. It partners with Taiwan Mobile for urban coverage, and crucially with Chunghwa Telecom, the operator that keeps working in the mountains, along the east coast and around the lakes. No other provider here reaches it. We tested it in exactly those places, and it matched Saily for reliability.
We bought a 20 GB plan for 30 days at $27, but Nomad’s pricing is genuinely odd. There’s no 15-day option at all: you get 3, 5, 7, 10 or 30 days, and no unlimited plan beyond ten days. On the plus side, new users get 1 GB free across 81 locations, Taiwan included.
Setup and activation were seamless, and 5G held even in remote areas, with no performance drops. Our main gripe is the inflexible plan list. Nomad also has none of the security extras we’d got used to with Saily.
Summary: What is the Best eSIM for Taiwan?
The best eSIM for Taiwan makes staying connected easy in 2026. The networks are fast and coverage reaches almost everywhere, so the choice comes down to value, extras, and where exactly you’re going.
Saily wins overall: cheapest to start at $3.39, a painless app, uncapped tethering, and security tools that earn their keep on hotel and café Wi-Fi. Heavy streamers should look at Holafly, whose unlimited data never throttles. And if Taroko, Alishan or the east coast are on your itinerary, take Nomad, the only provider here on Chunghwa Telecom.
Ubigi is the cheapest entry and the best regional Asia plan. Airalo is the flexible middle ground. Match the plan to your route and you’re set.
Frequently Asked Questions
What is the best eSIM for Taiwan?
Saily is the best eSIM for Taiwan overall. It held consistent 5G across Taipei, Taichung and Kaohsiung, offers uncapped tethering, and bundles an ad blocker, a malicious URL blocker and 115+ virtual locations. Plans start at $3.99, or $3.39 with the GIZMODO code, with unlimited data at $48.99 for 15 days ($41.64 discounted).
Which network is best for an eSIM in Taiwan?
It depends where you’re going. Taiwan Mobile and FET dominate the cities, while Chunghwa Telecom is the network that holds up in the mountains, on the east coast and around the lakes. Nomad is the only provider here that reaches Chunghwa. Ubigi runs on FET and Taiwan Mobile, Airalo on Taiwan Mobile alone, and Saily and Holafly do not disclose their partners.
Which eSIM has truly unlimited data in Taiwan?
Holafly. Its unlimited plans have no daily allowance and no speed cap at any point, which makes it the pick for heavy streamers. Saily’s unlimited plans give you 5 GB per day at full speed and then throttle to 1 Mbps, which is fine for maps and messaging but limiting over a fortnight.
What is the cheapest eSIM for Taiwan?
Ubigi, at $3 for 1 GB over 7 days. Saily follows at $3.39 with the GIZMODO code, then Airalo and Nomad at $4. Holafly is the priciest to get started at $6.90 for a day, though every Holafly plan includes unlimited data.
Can I share my eSIM data with other devices in Taiwan?
Saily, Ubigi, Airalo and Nomad all allow unlimited tethering, so one plan can cover a group. We ran three phones off a single Saily eSIM. Holafly is the exception, capping hotspot use at 1 GB per day, which is enough for browsing but not for streaming on a second device.
Can I call and text with an eSIM in Taiwan?
Not with any of the five. Saily, Ubigi, Holafly, Airalo and Nomad all sell data-only plans for Taiwan. LINE, WhatsApp and FaceTime cover calls and texts over your eSIM data, and you can keep your home SIM active in the second slot to receive verification codes.