You land at Juan Santamaría Airport. Your phone has no signal. You need to call your car rental company, pull up Waze to navigate, and let someone know you arrived safely. You have three choices: wander the arrivals hall looking for a SIM card kiosk that may or may not be open, hope your international roaming plan doesn't cost you $12 per day, or scan a QR code you set up last night and be connected before the plane doors open.
This guide breaks down every option for staying connected in Costa Rica in 2026 — local physical SIM cards, eSIMs, international roaming plans, and free Wi-Fi — with real prices, honest coverage assessments, and a clear recommendation based on how you're traveling.
The Short Version
If you just want the answer without reading 3,000 words:
For most tourists (1–3 weeks): Buy an eSIM before you fly. Airalo on the Kolbi or Liberty network is the most reliable option. Budget $10–25 for 3–10 GB depending on trip length. You'll have data the second you land.
For budget travelers or longer stays: Buy a physical Kolbi prepaid SIM at a store near the airport or in any town. $2 for the card plus $10–24 for a monthly data plan. Best coverage nationwide, especially in rural areas.
For travelers going off-grid (Osa Peninsula, Corcovado, deep cloud forest): Kolbi physical SIM is your only reliable option. eSIMs on the Claro network will leave you without signal in remote areas.
For short trips where you don't want to think about it: Check if your home carrier offers a reasonable international plan. T-Mobile Go5G includes basic international data at no extra cost. AT&T and Verizon charge $10–12/day.
Now, if you want to understand why — keep reading.
Understanding the Three Networks
Before choosing any SIM or eSIM, you need to understand what you're actually connecting to. Costa Rica has three mobile networks, and they are not equal.
Kolbi (ICE) — The government-owned network and by far the largest, controlling roughly 60% of the market. Kolbi has the most extensive rural coverage because it inherited decades of government-built infrastructure. If you're going anywhere off the main tourist trail — cloud forests, national parks, small towns, the Caribbean coast — Kolbi is the network that will still have signal when the others don't.
Liberty (formerly Movistar) — The second-largest network. Good coverage in urban areas and popular tourist destinations. Competitive speeds in cities — sometimes faster than Kolbi in San José. Growing rapidly but still has gaps in rural zones.
Claro — Part of América Móvil (Mexico). Good coverage in major cities and along main highways. Weakest of the three in remote and rural areas. Some travelers report that Claro works better than Kolbi in specific pockets (parts of the Osa Peninsula, for example), but overall it's the least reliable for off-beaten-path travel.
The critical takeaway: When you buy an eSIM from a provider like Airalo, Holafly, or Jetpac, you're not connecting to their network — they're reselling access to one of these three. An eSIM that uses the Claro network will have Claro's coverage gaps. An eSIM on Kolbi will have Kolbi's reach. Always check which network your eSIM connects to before buying.
5G in Costa Rica: Liberty and Claro launched limited 5G service in mid-2025, but coverage is essentially restricted to downtown San José and a few surrounding areas. For practical purposes, you'll be on 4G/LTE everywhere. Don't pay extra for a "5G-ready" eSIM — it won't matter.
Option 1: eSIM (Best for Most Tourists)
An eSIM is a digital SIM card built into most modern phones. Instead of buying a physical chip, you scan a QR code and your phone connects to a local network. No kiosk lines, no passport verification, no fumbling with tiny SIM trays. You can set it up the night before your flight and have data the moment your plane touches down.
Who Should Use an eSIM
Anyone with a compatible phone who wants the easiest, fastest way to get connected. This is the right choice for the vast majority of visitors in 2026.
Phone Compatibility
Most phones manufactured after 2019 support eSIM. The main ones:
• iPhone: XS, XR, and all newer models (iPhone 14 and later are eSIM-only in the US — no physical SIM slot)
• Samsung Galaxy: S20 and newer, Z Flip/Fold series
• Google Pixel: 3a and newer
• Other brands: Check your phone's settings → About Phone → look for "EID" or "eSIM" — if it's there, you're good
Important: Your phone must be carrier-unlocked. If you bought it through a carrier plan and it's still being paid off, it may be locked. Check with your carrier before your trip.
The Best eSIM Providers for Costa Rica in 2026
Every "best eSIM" article online is an affiliate marketing vehicle. They all "recommend" whichever provider pays the highest commission. Here's what we know from actual use and research, with no affiliate links and no promo codes.
Airalo — The most established eSIM provider and the safest bet for Costa Rica. Connects to either Kolbi or Claro depending on the plan (their "Phonebox" plans use Kolbi, which is what you want). Good app, straightforward activation, reliable customer support. Plans from $9.50 (1 GB / 7 days) to $45 (20 GB / 30 days). This is what we recommend for most travelers.
Holafly — Offers "unlimited" data plans, which sounds appealing but comes with a catch: a Fair Use Policy that throttles your speed after 1–2 GB per day down to roughly 384 Kbps — essentially unusable for anything beyond messaging. Also: data-only (no calls/SMS), no hotspot sharing, and more expensive than Airalo for what you actually get. Plans from $27 (5 days) to $54 (20 days). Fine if you use light data and want the "unlimited" peace of mind. Not worth it if you need reliable speed or hotspot.
Jetpac — Budget option that operates on the Claro network. Cheapest starting price ($4 for 1 GB / 4 days), but Claro's weaker rural coverage means you'll lose signal outside urban areas. Good for budget-conscious city stays. Not recommended for road trips or rural destinations.
Saily, Roamless, GigSky, Yesim, and others — All work, all have varying prices and networks. The market is flooded with eSIM providers, and honestly, the differences are marginal. The two things that matter: which local network does the eSIM connect to, and what's the price per GB.
What We Recommend
Airalo, 5–10 GB plan on the Kolbi network. $20–30 for a two-week trip. Install it before you fly, activate when you land. You'll have coverage in La Fortuna, Monteverde, Manuel Antonio, Tamarindo, the Caribbean coast, and — critically — in cloud forest areas like Bajos del Toro where other networks drop out.
If you're staying for three weeks or more and use data heavily (video calls, uploading photos, streaming music in the car), consider a 20 GB plan or buying a physical SIM instead.
How Much Data Do You Actually Need?
Most travelers dramatically overestimate their data needs. With Wi-Fi at virtually every hotel, restaurant, and café in Costa Rica, your mobile data is really for:
• Waze/Google Maps navigation — Uses about 5–10 MB per hour of driving. A full day of driving might use 50 MB.
• WhatsApp messaging — Minimal. Text messages are tiny. Voice calls use ~30 MB/hour. Video calls use ~300 MB/hour.
• Instagram/social media browsing — About 100–200 MB/hour of active scrolling and uploading.
• Email — Negligible unless you're downloading large attachments.
For a typical two-week vacation with driving and daily messaging, 3–5 GB is plenty. If you're a heavy social media user uploading photos and stories daily, budget 7–10 GB.
Option 2: Physical SIM Card (Best for Budget Travelers & Long Stays)
A physical SIM card from a local carrier is still the cheapest way to get connected, and it gives you a local Costa Rican phone number — which can be useful for calling restaurants, tour operators, and hotels directly.
Where to Buy
At the airport (SJO — Juan Santamaría): The situation changes frequently. As of early 2026, the dedicated Kolbi and Claro kiosks that used to be at baggage claim have been replaced by SIM card vending machines in Terminal A and the rental car lobby. These work but require self-activation, which can be confusing. There's sometimes a Claro desk open near baggage claim, but hours are inconsistent.
At the airport (LIR — Liberia/Guanacaste): Kiosks for Kolbi, Claro, and Liberty are available in the arrivals area. Generally less crowded than SJO.
Better option — at a carrier store: If you're renting a car and driving past Alajuela (5 minutes from SJO), stop at City Mall where Kolbi, Claro, and Liberty all have storefronts. Staff will set up everything for you. In Liberia, all three carriers have stores within 15 minutes of the airport. In any medium-sized town in Costa Rica, you'll find at least one Kolbi store (look for the green frog logo) or an ICE office.
Supermarkets: Some Walmart, Mas x Menos, and Automercado locations sell prepaid SIM cards at checkout. These are just the chip — no setup assistance.
What You Need
• Unlocked phone
• Passport (required for SIM registration)
• Cash in colones is ideal, though some locations accept USD and credit cards
Kolbi Prepaid Plans (Recommended)
Plan: Short · Data: 1 GB · Validity: 15 days · Price: ₡2,500 (~$5)
Plan: Basic · Data: 2 GB · Minutes: 35 min · SMS: 30 · WhatsApp Bonus: 3 GB WhatsApp · Validity: 30 days · Price: ₡5,000 (~$10)
Plan: Standard · Data: 4 GB · Minutes: 50 min · SMS: 30 · WhatsApp Bonus: 3 GB WhatsApp · Validity: 30 days · Price: ₡8,000 (~$16)
Plan: Premium · Data: 5 GB · Minutes: 100 min · SMS: 30 · WhatsApp Bonus: 5 GB WA/FB/IG · Validity: 30 days · Price: ₡12,000 (~$24)
The SIM card itself costs ₡1,000 (~$2). Add whichever plan you want on top.
The hidden gem: Kolbi's Social Package gives you unlimited WhatsApp, Facebook, Instagram, and X (Twitter) for 7 days at just ₡1,500 (~$3). If you mainly need messaging and social media, this plus a small data plan is incredibly cheap.
Recharging
When you run out of credit, recharging ("recargar") is easy. Walk into any supermarket, pharmacy, or convenience store and say "Me puedo recargar mi Kolbi" plus the amount. Give them your phone number and cash. Takes 30 seconds. You can also recharge through the Kolbi app or by buying scratch cards.
Pro tip: Take a photo of the receipt with your phone number when you first buy the SIM. You will forget the number, and you'll need it to recharge.
When to Choose Physical SIM Over eSIM
• You're staying longer than 2 weeks and want the cheapest option
• You need a local phone number for calling restaurants, tours, emergency services
• Your phone doesn't support eSIM
• You're traveling to very remote areas and want to be certain you're on the Kolbi network
• You want hotspot/tethering without restrictions
Option 3: International Roaming (Convenient but Expensive)
Using your home carrier's international roaming plan means zero setup — your phone just works when you land. But it comes at a price.
US Carriers
T-Mobile (Go5G plans): Includes international data and texting at no extra cost in Costa Rica. Data speeds are throttled to 2G-like speeds (~256 Kbps) unless you buy a high-speed add-on ($5/day for up to 5 GB). Usable for messaging and maps, frustrating for anything else.
AT&T International Day Pass: $12/day, automatically charged only on days you use your phone. Full-speed data from your home plan. Can add up quickly on a two-week trip ($168).
Verizon TravelPass: $10/day, similar to AT&T. Uses your domestic plan's data, minutes, and texts.
Google Fi: Works internationally at no extra cost with the same speeds and pricing as at home. If you're already on Google Fi, this is the easiest option by far.
Canadian Carriers
Most Canadian carriers (Rogers, Bell, Telus) charge $12–15 CAD per day for international roaming. Similar to the US carriers — convenient but expensive for anything longer than a few days.
When International Roaming Makes Sense
• Very short trips (3–4 days) where the convenience is worth the daily fee
• You absolutely need your home phone number for calls and texts
• You're on Google Fi or a similar plan with free international data
• You don't want to deal with any setup at all
When It Doesn't
• Trips longer than 5 days (the daily fees exceed the cost of a local SIM or eSIM)
• You need fast, reliable data for navigation and uploading
• You're trying to keep costs down
Option 4: Wi-Fi Only (Surprisingly Viable)
Costa Rica has excellent Wi-Fi infrastructure in tourist areas. Most hotels, hostels, restaurants, cafés, and even some national park visitor centers offer free Wi-Fi. If you're on a very tight budget and don't mind being offline while driving or hiking, Wi-Fi only is a real option.
Where Wi-Fi Works Well
• Hotels and Airbnbs — nearly universal, usually decent speed
• Restaurants and cafés in tourist towns — very common
• Shopping malls — free Wi-Fi
• Some public buses (mainly intercity)
Where It Doesn't
• In the car (you need offline maps — download Google Maps or Maps.me areas before you go)
• On trails and in national parks
• Small rural towns
• Emergencies — if your car breaks down on a rural road, you need mobile data
The Hybrid Strategy
Download offline maps for your entire route before leaving Wi-Fi. Use WhatsApp Web to send messages from your laptop at the hotel. Save data-heavy tasks (uploading photos, video calls, research) for Wi-Fi. Use mobile data only for navigation and quick messaging while out.
Coverage Reality Check: Where You'll Lose Signal
No matter which option you choose, there are places in Costa Rica where you simply won't have cell service. The country's terrain — dense jungle, cloud forests at 1,000+ meters, mountain passes, and remote coastline — means dead zones exist on every network.
Generally strong coverage (all networks):
San José and Central Valley, La Fortuna/Arenal, Tamarindo, Manuel Antonio, Jacó, Monteverde town center, Papagayo/Gulf of Papagayo, Limón, Puerto Viejo town center
Kolbi-only or very spotty (other networks unreliable):
Bajos del Toro and cloud forest areas [VERIFY — based on guest reports], Osa Peninsula interior, Tortuguero (accessible mainly by boat), deep Sarapiquí, parts of the Nicoya Peninsula interior, mountain passes between regions
Limited or no coverage (any network):
Corcovado National Park interior, Chirripó National Park above certain elevations, remote Caribbean beaches south of Cahuita, deep river valleys, unpopulated stretches of the Pan-American Highway in the south
What this means for your eSIM choice: If your itinerary includes only major tourist destinations, any network is fine. If you're venturing into cloud forests, national parks, or rural areas — and especially if you're visiting Bajos del Toro, Sarapiquí, or Río Cuarto — make sure your eSIM uses the Kolbi network. This is the single most important factor in your decision.
Our Recommendation by Traveler Type
The Standard Tourist (1–2 weeks, major destinations)
→ Airalo eSIM, 5 GB, Kolbi network. ~$20. Install before your flight.
The Adventure Traveler (2–3 weeks, off-beaten-path)
→ Kolbi physical SIM card, Standard plan (4 GB + 50 minutes). ~$18 total. Buy at a carrier store your first day.
The Digital Nomad (1+ month, working remotely)
→ Kolbi physical SIM card, Premium plan (5 GB + Social Package). ~$27 total. Recharge as needed. Supplement with café and hotel Wi-Fi.
The Budget Backpacker
→ Wi-Fi only + Kolbi Social Package ($3/week) for unlimited WhatsApp and social media. Download offline maps before you go.
The Short Tripper (3–5 days, minimal hassle)
→ Check your home carrier's international plan. If it's reasonable (Google Fi, T-Mobile), just use it. Otherwise, Airalo 1–3 GB eSIM for $10–15.
Practical Tips
Download offline maps before your trip. Even with the best data plan, you'll hit dead zones. Download the areas you're visiting in Google Maps or Waze while on Wi-Fi. This is non-negotiable for road trips.
WhatsApp is king in Costa Rica. Everyone uses it — restaurants, tour operators, your Airbnb host, taxi drivers. Install it before you arrive if you don't already have it. You can use it on Wi-Fi without any mobile data.
Your hotel or Airbnb host knows the local coverage. Before choosing a carrier, ask your accommodation which network works best in their specific area. In some rural areas, Claro has a tower where Kolbi doesn't, or vice versa. Local knowledge beats any coverage map.
Don't buy at the airport unless you have to. Airport kiosks (when they're open) are often crowded, overpriced, or unstaffed. Set up an eSIM before your flight, or wait until you reach a carrier store in the nearest town. The 30 minutes without signal between the airport and the store won't hurt.
Dual SIM setup. If your phone supports eSIM plus a physical SIM (most modern phones do), you can keep your home number active on one line while using a Costa Rican eSIM for data on the other. This way you receive calls and texts from home without paying roaming rates for data.
Test your eSIM before your trip. Activate it at home and confirm it connects. You don't want to troubleshoot activation issues while standing in an airport arrivals hall after a red-eye flight.
The Cloud Forest Coverage Note
If you're visiting Bajos del Toro, the waterfalls, Río Agrio, or any of the cloud forest attractions between the Central Valley and the Northern Zone, you should know that mobile coverage in this area is limited. Kolbi provides the most reliable signal, but even Kolbi can be spotty in deep valleys and along some stretches of the road.
Your Airbnb or hotel host in the area can tell you exactly which carrier works at their location. Most accommodations in the region have Wi-Fi, and you'll be fine for navigation on main roads. But don't expect to livestream from the base of a waterfall.
For Waze navigation specifically: the key stretches of road (Route 708 to Bajos del Toro, the road to Venecia, the connection to La Fortuna) have sufficient Kolbi signal for turn-by-turn directions. Download offline maps as a backup anyway.
Frequently Asked Questions
Can I use my phone in Costa Rica?
Yes, if it's unlocked and supports the GSM frequencies used here (850 MHz and 1900 MHz). Almost all modern smartphones from North America and Europe work without issues.
Do I need a VPN in Costa Rica?
No. Costa Rica has no internet censorship or content restrictions. A VPN is only useful if you want to access streaming content (Netflix, etc.) from your home country's library.
Can I buy a SIM card with US dollars?
Sometimes, at airport kiosks and some tourist-area stores. But colones are more widely accepted and often get you a better rate. Use an ATM at the airport to withdraw colones. [VERIFY — ATM availability at SJO]
Will my phone work for emergency calls without a SIM?
Yes. In Costa Rica, emergency calls to 911 work from any phone, even without a SIM card, as long as there's network coverage.
Can I hotspot/tether with an eSIM?
It depends on the provider. Airalo generally supports tethering. Holafly does not (or limits it severely). Check before buying if this matters to you.
What about Apple Watch / smartwatch cellular?
International eSIMs generally don't work with Apple Watch cellular. Your watch will work on Wi-Fi and when paired to your phone via Bluetooth, but the cellular feature requires a local carrier plan that supports wearables — which is impractical for tourists.