Best eSIM for Costa Rica in 2026: unlimited data, real prices and what to check

Costa Rica is a data-hungry trip. You will be checking shuttle times to La Fortuna, loading maps on gravel roads near Monteverde, booking a last-minute surf lesson in Tamarindo and sending video to family from Manuel Antonio. A phone that only works on hotel Wi-Fi ruins the whole rhythm.

This page is a decision guide, not a sales pitch. Below you get how eSIM coverage actually behaves in Costa Rica, the exact VoaSim prices by duration, how brands that sell by the gigabyte differ, and the cases where a local SIM or a small GB plan is honestly the smarter buy.

Which networks a Costa Rica eSIM uses

Costa Rica has three main mobile networks: Kolbi (the state operator, widest rural reach), Liberty and Claro. A travel eSIM does not belong to one of them — it roams onto local networks automatically, on 4G and, where available, 5G. You do not pick the network by hand; the phone attaches to whatever is strongest.

What to expect in practice:

• San José and the Central Valley: solid 4G almost everywhere, including the airport corridor.
• La Fortuna / Arenal and Monteverde town: good signal in town, patchy on the connecting roads.
• Manuel Antonio, Jacó, Tamarindo, Nosara: reliable along the tourist strips and beaches.
• Inside national parks and cloud forest: signal drops for every network, local or roaming. Nobody sells coverage there.

Download offline maps for Corcovado, Rincón de la Vieja and the Osa Peninsula before you drive out. See the full eSIM destination list.

VoaSim prices for Costa Rica (same price for every destination)

VoaSim has one price per duration, identical for all 170 destinations. No per-GB tiers to decode, no cap, no speed throttling, no hidden fair-use clause. Prices below already include today's 15% promo.

Trips of 1 to 4 days pay the 5-day package. A second eSIM in the same order gets 10% extra off, which is how couples usually buy. Maximum 90 days per eSIM. Payment is by international credit or debit card in USD through Stripe, with an invoice by email. Get your exact figure in the price simulator.

Unlimited vs. per-GB: how to choose honestly

Brands like Airalo, Nomad, Ubigi, Saily or Alosim sell Costa Rica packages by the gigabyte through their apps. Holafly sells unlimited-style plans with usage conditions written into its terms. Each one has its own caps, validity windows and tethering rules — read them on the official site before you buy.

A simple way to decide:

• Light user, short trip: you check WhatsApp, a map twice a day, no streaming. A small GB package can cost less than any unlimited plan. Buy that.
• Normal traveler: maps running while you drive, Instagram stories, video calls home, uploading photos. This is where a per-GB plan runs out mid-trip and you top up twice. Unlimited wins on price and on peace of mind.
• Remote worker or family sharing one trip: unlimited, and confirm any tethering need with support first.

More side-by-side detail in our eSIM comparisons and best-of guides.

Today's prices

Today's promo prices (15% off), the same for every destination. Second eSIM in the same order: 10% extra off. Trips of 1-4 days use the 5-day package.

When a local SIM or carrier roaming is the better pick

We are not going to pretend VoaSim wins every scenario.

Buy a local Costa Rican SIM if you are staying for months, need a Costa Rican phone number for local bookings, taxi apps or a bank, or you want to top up in colones as you go. The trade-off: a shop visit, passport registration, airport time and taking your own SIM out of the phone — your home number leaves the device.

Use your carrier's roaming if you are in Costa Rica for two or three days and your plan already bundles Latin America, or a day pass costs less than a 5-day eSIM for that short window. T-Mobile, AT&T, Verizon, Rogers and others price this by day of use, with daily allowances and often reduced speeds afterwards. Rates change constantly, so check the current figure in your carrier app before you fly. Background on how this works in our roaming guide.

Install before you fly: the part people get wrong

Your QR code arrives by email within minutes of payment (plus a WhatsApp heads-up if you left a number at checkout). Install it at home, on Wi-Fi, while you still have someone to ask.

1. Check compatibility: dial *#06#. If an EID appears, your phone supports eSIM. iPhone XR or newer, Galaxy S20 or newer, Pixel 3 or newer, and most phones from 2020 on. The phone must be carrier-unlocked.
2. Scan the QR code and add the eSIM line — but keep that line switched off. On Android, do not enable the eSIM's mobile data before the trip.
3. Your days start counting at the first connection to a network in Costa Rica, not at purchase.
4. Landing at SJO or LIR: turn off data roaming on your home carrier, switch the VoaSim line on, allow a couple of minutes to attach.
5. Your physical SIM and number stay active, so WhatsApp keeps working on your usual number.

Step-by-step screenshots in the install guides and arrival tips in airports.

If it does not connect

No signal after landing is almost always a settings issue, not a dead eSIM. Airplane mode toggle, manual network selection to Kolbi or Liberty, and checking that data roaming is enabled on the VoaSim line fix most cases.

VoaSim runs a free tool, eSIM Rescue, that diagnoses an eSIM with no signal — including eSIMs from other brands. Use it in the arrivals hall if something looks wrong. Human support answers by chat or at hola@voasim.com, in English.

The guarantee is simple: if the eSIM will not connect and support cannot fix it, you get a 100% refund. No fine print about how many megabytes you used first.

One limitation worth stating plainly: a travel eSIM is data only. There is no phone number and no traditional voice calls. WhatsApp calls, FaceTime, maps and apps all work over data. And on a cruise, it works at the ports, not at sea. More on how we operate in trust.

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