eSIM Providers for Costa Rica (2026) — 4 Compared

Five weighted categories produce each provider's Costa Rica score. Pricing and Coverage each carry 25% weight — the heaviest factors. Speed accounts for 20%, measuring real throughput on Claro and other Costa Rica carriers. App quality (15%) tracks installation success rate and interface design. Support (15%) measures response time and refund generosity. Airalo, Holafly, Saily, and Nomad each receive a 1-5 score per category. These per-country scores mean a provider strong in Costa Rica might score lower elsewhere if carrier routing differs.

Airalo leads on coverage breadth for Costa Rica with a 5.0/5 coverage score and 200+ country network footprint. Coverage routes through Claro. For Costa Rica specifically, all four providers access the same 4G LTE infrastructure, so urban coverage is comparable between them. Airalo's coverage advantage matters most for multi-country itineraries extending beyond Costa Rica — Holafly, Saily, and Nomad score equally for single-country trips.

The comparison matrix evaluates five dimensions: (1) Pricing — entry price, per-GB rate at each tier, and whether unlimited daily is available for Costa Rica; (2) Coverage — which local carriers each provider routes through and 4G LTE network quality; (3) Speed — real-world download averages on the local network, not theoretical maximums; (4) App quality — eSIM installation flow, APN auto-configuration, and support chat response time (Airalo averages 2 hours, Holafly 4 hours); (5) Refund policy — Holafly offers 6 months, Saily and Nomad 30 days, Airalo 14 days. All five scores combine into the overall ranking for Costa Rica.

Most travelers to Costa Rica use 1-2GB per day on cellular. Maps, messaging, and social media consume 500MB-1GB daily. Streaming video pushes usage to 3-5GB per day. For a 7-day trip with good WiFi availability, a 5GB fixed plan covers light-to-moderate usage comfortably. Heavy users should consider Holafly's unlimited daily plan at $7.56/day. WiFi at hotels and cafes in Costa Rica reduces cellular consumption by 30-60% depending on usage patterns.

Unlimited data in Costa Rica costs $7.56/day through Holafly — $52.92 for a 7-day trip. A 5GB fixed plan costs $26.99. The breakeven point: if you use more than 11GB during your Costa Rica trip, unlimited becomes cheaper per-GB. Remote workers streaming video or on daily video calls easily exceed 5GB per day, making unlimited the clear value play. Casual travelers using maps and messaging rarely need unlimited.

Install your Costa Rica eSIM 24-48 hours before departure while you have stable WiFi. Do not enable data roaming until you land. Most providers start the plan validity clock at first data use, not at installation. Airalo and Holafly both confirm this policy for Costa Rica. Saily and Nomad start validity on first connection. Install early to troubleshoot any QR scanning issues while you still have home internet. Enable data roaming in Costa Rica only after landing and clearing customs.

Set your travel eSIM as the data line and keep your home SIM for calls and texts. On iPhone: Settings > Cellular > select the Costa Rica eSIM line > Turn On This Line > set as Cellular Data. On Android: Settings > Network > SIM Manager > set eSIM as mobile data. Disable Data Roaming on your home SIM to prevent charges. Enable Data Roaming on the Costa Rica eSIM only. All four providers — Airalo, Holafly, Saily, Nomad — work in dual SIM mode.

Costa Rica travel eSIMs run on 4G LTE. Average measured download speed is 25 Mbps. All four providers — Airalo, Holafly, Saily, Nomad — access the same Claro infrastructure, so the speed difference between providers is minimal under normal conditions. Peak-hour slowdowns affect all providers equally in dense urban areas. The speed column in our comparison matrix reflects measured averages, not carrier specifications.

All four providers deliver nearly identical speeds in Costa Rica — 25 Mbps average — because they route through the same Claro infrastructure. eSIM providers do not own towers; they lease capacity from Costa Rica's carriers. Speed differences between Airalo, Holafly, Saily, and Nomad are negligible under normal conditions. Peak-hour congestion in Costa Rica cities affects all providers equally. Our Speed dimension (20% weight) scores them within 0.2 points of each other for most destinations.

Airalo leads on multi-country support. Airalo offers regional bundles — Asialink (16 countries), Eurolink (39 countries), Discover Global (130 countries) — that cover Costa Rica alongside neighboring countries on a single eSIM profile. Holafly also offers multi-country plans in Central America. Saily and Nomad require a separate eSIM per country, which adds switching friction for complex itineraries. If Costa Rica is your only stop, any provider works and the decision comes down to pricing and refund policy.

Refund windows for Costa Rica eSIMs: Holafly gives 6 months (industry-leading), Saily 30 days, Nomad 30 days, Airalo 14 days. The catch across all four: the eSIM must be unused. One megabyte of data consumed in Costa Rica voids the refund for most providers. Holafly occasionally grants exceptions for technical issues even after partial use. Refund processing takes 5-10 business days across all four providers. This is why refund policy carries weight in our Support scoring dimension (15%).

You can switch providers during your Costa Rica trip by purchasing and installing a new eSIM. WiFi is required to download the new profile. iPhone 13+ supports multiple eSIM profiles — install the new one alongside the old. Older iPhones need to delete the current eSIM first. Android varies by manufacturer. Refund windows: Holafly 6 months, Saily 30 days, Nomad 30 days, Airalo 14 days — unused data on the old plan may qualify for a refund. Switching takes 5-10 minutes on WiFi.

eSIM transfer between devices depends on the provider, not the country. Airalo supports re-downloading an unactivated eSIM profile on a new device. Holafly, Saily, and Nomad generally allow one installation per purchase — contact support before activating on the new device. Apple's eSIM Transfer feature (iPhone-to-iPhone via cable or iCloud) does not apply to third-party travel eSIMs. Always install your Costa Rica eSIM before factory-resetting or trading in your phone.

Coverage outside cities in Costa Rica depends on carrier tower density, not the eSIM provider. All four — Airalo, Holafly, Saily, Nomad — route through Claro. Urban coverage on 4G LTE is strong for all providers. Rural areas may drop to 3G or lose signal entirely in mountainous or remote terrain. Check Claro's coverage map for specific Costa Rica routes. Download offline maps before leaving city WiFi.