Last updated: September 5th, 2026
Siargao is a two-network island, and the two networks don't agree on where to be good. Smart and Globe both cover the island, but their strength splits by barangay: one carries the General Luna strip, the other holds up better past Pacifico, and a brownout can drop one network's towers while the other keeps working. The only losing move on Siargao is betting your whole trip on a single network. That is exactly what most travel eSIMs make you do.
We sell eSIMs, so read this knowing we're biased. But the Siargao problem is structural: almost every travel eSIM locks you to either Smart or Globe, and on this island you want both. Below is where each network works, which providers connect to which, and honest picks for surf season.
The short answer for Siargao
- The Siargao reality: Smart and Globe split the island. Neither wins everywhere, and brownouts shuffle the map daily.
- Best overall pick: Travelsim Asia, the only major provider on both Smart and Globe, cheapest 10 GB ($14.99), no app
- Best if you want unlimited: Holafly, Globe only, strongest along the General Luna strip
- Best big-data plan: Nomad, 20 GB / 45 days at $27.00, Globe only
- Single-network gambles: Airalo and Ubigi (Smart side), Saily (won't say which network)
Based on publicly listed info, September 2026. Networks and prices can change.
Why Siargao is a two-network island
Most coverage-problem islands have one answer. Raja Ampat is Telkomsel or nothing, and the Gilis lean hard on one Indonesian carrier. Siargao is different: Smart and Globe both invested here, especially in the rebuild after typhoon Odette, but they invested in different places. The tourist economy runs down the east coast from General Luna to Cloud 9, and coverage there is decent on both networks most days. Ride north to Pacifico and Burgos, cross to Dapa for the ferry, or head into the mangroves at Del Carmen for Sugba Lagoon, and the two networks stop being interchangeable.
Then there's the power grid. Siargao's electricity flickers, and when a barangay browns out, cell sites on backup batteries start dropping. Which towers die first is close to random: sometimes Smart's, sometimes Globe's. Travelers on one network watch their signal vanish while the table next to them keeps scrolling. That is the daily texture of Siargao connectivity, and it is why picking one network for Siargao is the mistake, whichever one you pick.
Where each network works on Siargao
A realistic picture by area, from the airport to the day trips.
| Area | Smart | Globe |
|---|---|---|
| General Luna and Cloud 9 | Good | Good, often strongest on the strip |
| Dapa (ferry port) | Good | Usable |
| Pacifico, Burgos, the north | Usually the stronger side | Patchy |
| Del Carmen and Sugba Lagoon | Weak, fades in the lagoon | Weak, fades in the lagoon |
| Magpupungko (Pilar) | Patchy | Patchy |
| Island hopping (Daku, Guyam, Naked) | Signal from the GL coast, usable | Signal from the GL coast, usable |
Synthesis of crowdsourced signal maps and traveler reports, checked July 2026; direct links in the Sources section below. Conditions shift with weather, tower load in high season, and the state of the power grid that day.
The brownout rule. On Siargao, coverage maps only tell you half the story. Power interruptions are part of island life, and when they hit, towers drop network by network, not all at once. An eSIM on both Smart and Globe rides through most of them by switching to whichever side is still up. An eSIM on one network is offline until that specific tower comes back.
Which providers give you which network
Every major travel eSIM answers the Smart-or-Globe question differently, and only one refuses to choose. Prices shown at 10 GB, the size most two-week surf trips use.
| Provider | Network(s) | App required | 10 GB price |
|---|---|---|---|
| Travelsim Asia | Smart + Globe | No, email delivery | $14.99 / 30d |
| Ubigi | DITO + Smart | Yes | $16.00 / 30d |
| Nomad | Globe | Yes | $17.00 / 30d |
| Saily | Not disclosed | Yes | $18.99 / 30d |
| Airalo | Smart | Yes | $19.00 / 30d |
| Holafly | Globe | Optional | N/A, unlimited only |
Prices and networks from each provider's published pages, checked September 2026; linked in the Sources section below. Travelsim Asia is our own product.
Travelsim Asia is the only major provider connecting to both Smart and Globe, with the lowest-priced 1 GB, 5 GB and 10 GB Philippines plans, no app and no account. On most islands that's a nice bonus. On Siargao, where the two networks split the map and trade places after every brownout, it's the whole game.
The picks for Siargao
Here is when each provider is the right call, including where a competitor beats us.
Travelsim Asia: best overall for Siargao
Good for: anyone whose trip goes past the General Luna strip, and anyone who'd rather not think about Philippine network politics. Your phone uses whichever of Smart or Globe is stronger where you stand, which on Siargao changes between the strip, the north, and the ferry port. Cheapest 10 GB in the market at $14.99 / 30 days, cheapest 1 GB ($2.99) and 5 GB ($10.49) too, delivered by email with no app and no account, top-ups by web portal when the swell talks you into a second week. Less ideal for: unlimited data (we don't sell it) and 20 GB+ plans, where Nomad beats us. This is our product, so weigh the bias.
Holafly: unlimited on the Globe side
Good for: travelers basing themselves on the General Luna strip who want unlimited data without watching a counter, streaming and video-calling from cafés and villas. Globe holds the strip well, and Holafly's unlimited has no daily throttle. Less ideal for: exploring the island. It's Globe-only, so the north coast and brownout days can leave it flat, and at roughly $4/day it costs several times a fixed plan. Hotspot sharing is capped at 1 GB/day, which matters if your villa WiFi dies and the laptop needs rescuing.
Nomad: the big-data pick, on Globe
Good for: heavy users and long stays. Nomad's 20 GB / 45 days at $27.00 is the best big-data deal in the Philippines market, beating our 20 GB ($29.99 / 30 days) on both price and validity, and their 50 GB / 30 days at $45.00 has no equivalent from us. Less ideal for: the same reason as Holafly: it's Globe-only, with app-and-account setup. If your month on Siargao is mostly the strip, it's a strong pick. If it's the whole island, you're back to one-network roulette.
Airalo, Ubigi and Saily: the one-network gambles
Honest steer: Airalo (Smart) and Ubigi (DITO + Smart) put you on the side of the island that Smart happens to hold, which is fine for a north-coast surf mission around Pacifico and weaker along stretches of the strip, with no fallback when a Smart tower drops. Both also cost more than us at 10 GB ($19.00 and $16.00 against $14.99). Saily won't say which Philippine network it uses, which on a coverage-split island means you can't plan around it. None of these are bad eSIMs. They're single-network bets on an island that punishes single-network bets.
Siargao things worth knowing
- Brownouts are routine, so charge accordingly. Power interruptions hit regularly, more in storm season. A power bank keeps your phone alive through them, and a dual-network eSIM keeps it connected while half the island's towers run on batteries.
- Everything books through Messenger and WhatsApp. Surf instructors, habal-habal drivers, island-hopping boats, villa hosts: it all runs on chat, Facebook Messenger above all. The Philippines is a Messenger country, and confirmations arrive an hour before, not a day before. You want working data, not café WiFi you left twenty minutes ago.
- GCash needs data to pay. Half of Siargao's shops and drivers take GCash, and it needs a connection at the moment of payment. Cash still rules the smaller sari-sari stores, and the island's ATMs run dry in high season, so carry both.
- Surf season strains the strip's towers. August to November brings the crowds to Cloud 9, and evening speeds in General Luna sag when every villa and café hits the network at once. Being on whichever network is less congested that evening is another quiet win for carrying both.
- Download before the day trips. Sugba Lagoon and the Magpupungko pools sit in the island's weakest coverage. Save offline maps, your booking confirmations, and the tide chart before the boat leaves. Surf and weather forecasts matter here in typhoon season, so check them in town, not from the lagoon.
- Island WiFi is better than it was, and still not something to rely on. Fiber reached General Luna, but outages track the power grid and village WiFi fades fast outside the strip. Treat your eSIM as the primary connection and WiFi as a bonus, which is the Philippines rule everywhere off the big cities.
How much data do you need for Siargao?
More than a city trip. WiFi can't be leaned on, Messenger runs your logistics, GCash runs your payments, and surf clips are heavy. Data discipline on Siargao is mostly about uploads: a few reels of Cloud 9 footage move more data than a week of maps and chat.
| Trip style | Daily usage | Recommended plan |
|---|---|---|
| Long weekend, chat and maps | 300–600 MB | 3 GB ($6.99) |
| A week of surfing, light posting | 500 MB–1 GB | 5 GB ($10.49) |
| Two weeks, daily clips and stories | ~1 GB+ | 10 GB ($14.99) |
| A month, remote work, heavy uploads | 1.5 GB+ | 20 GB ($29.99, or Nomad $27.00 / 45d) |
Most Siargao trips fit 5 to 10 GB. Size up rather than down: WiFi won't carry your overflow here, and topping up is easiest done before you need it. Our Philippines data guide breaks usage down app by app.
eSIM vs a local SIM for Siargao
You can buy a Smart or Globe SIM at Sayak airport or in General Luna, and locals will point you to whichever network their barangay favors. The catch is the SIM Registration Act: every physical Philippine SIM requires passport registration before it activates, which means a counter, a form, and a queue you'll meet again if the SIM needs sorting later. A travel eSIM connects through international roaming agreements, so registration doesn't apply, your home number stays live for banking codes, and you land at Sayak already connected for the van ride to General Luna.
Install before you fly and test it during your Manila or Cebu layover. Our buy-and-install guide walks through setup on iPhone and Android.
The bottom line
Siargao doesn't have a best network. It has two networks that divide the island between them and swap the lead every time the power flickers. That turns the usual eSIM comparison upside down: the deciding feature isn't price or an app, it's whether you're forced to pick a side.
Travelsim Asia is the only major provider that doesn't make you choose, on the market's cheapest 10 GB at $14.99. Holafly is the unlimited pick if your trip lives on the General Luna strip, and Nomad wins big-data trips at 20 GB and up. Whichever way you go, know which network you're buying before you pay, because on Siargao that answer follows you to every break on the island.
Sources
The coverage picture above is built from crowdsourced signal maps and traveler reports, and the provider data from each provider's own published Philippines pages. Check them yourself:
- Smart signal map (nPerf), crowdsourced coverage you can zoom to Siargao, updated continuously.
- Globe signal map (nPerf), the same crowdsourced view for Globe.
- Republic Act No. 11934 (SIM Registration Act), Official Gazette of the Philippines.
- Provider networks and prices, as listed on their pages, checked 5 September 2026: Airalo, Holafly, Nomad, Saily, Ubigi. Travelsim Asia data is our own.
Dig deeper
- Best eSIM for the Philippines (2026), the full buyer's guide across every provider and criterion.
- Philippines eSIM Prices 2026, Airalo, Holafly, Nomad and more compared on price.
- Cheapest Philippines eSIM 2026, the pure price comparison at every data tier.
- How Much Data Do You Need for the Philippines?, usage by trip type, including island hopping.
- How to Buy and Install a Philippines eSIM, step-by-step for iPhone and Android.
- Travelsim Asia vs Airalo for the Philippines (2026), the head-to-head: one network or two, price by size, and where each wins.
Not sure which plan fits your Siargao trip? Our support team can help, 24/7 by email and live chat.