San Juan & Old San Juan Guide
San Juan is Puerto Rico's capital and its urban heart: the colorful colonial fortresses and streets of Old San Juan, the resort and business districts of Condado and Miramar, the lively Santurce arts scene and food culture. For connectivity, it is excellent by any standard, Caribbean or otherwise: strong 5G across the city, fast speeds, and the same infrastructure quality you would expect from a major US city. This guide covers the city coverage, what to expect in Old San Juan, and getting the most from a connected stay.
San Juan has 5G. This is a city where you can video call from the ramparts of El Morro, stream from the beach in Condado, and use your phone normally everywhere. The connectivity question does not exist here.
San Juan: excellent across the board
San Juan has some of the best mobile coverage in the Caribbean, reflecting the island's US-standard infrastructure. Strong 4G and well-established 5G cover the entire metro area: Old San Juan's colorful streets and colonial fortresses, the Condado resort strip, Miramar and the business districts, Santurce's galleries and restaurants, and Isla Verde's beach hotels. For any stay in the capital, coverage is a non-question.
| Area | Coverage | What to expect |
|---|---|---|
| Old San Juan | 4G / 5G | Excellent on the cobbled streets, at the forts and plazas. |
| Condado & Isla Verde | 4G / 5G | Excellent in the resort and beach hotel strip. |
| Miramar & Santurce | 4G / 5G | Strong across the business and arts districts. |
| San Juan Bay area | 4G / 5G | Good along the waterfront and harbor. |
| Airport (LMM) | 4G / 5G | Excellent. Activate your eSIM here on arrival. |
One of the more pleasurable connectivity facts about Puerto Rico: you can stand on the 16th-century walls of El Morro or at the Castillo San Cristobal and have strong 5G coverage. The US-standard infrastructure that serves the modern city extends to the colonial historic zone without any degradation. History and fast mobile data coexist without tension.
Getting the most from a connected San Juan stay
- Look up the history live. Old San Juan rewards on-the-spot reading about the fortresses, churches and plazas; excellent coverage makes this easy.
- Use rideshare apps freely. Strong city coverage makes rideshare and taxi apps reliable across San Juan, the most practical way to move between the historic zone, Condado and Santurce.
- Stream and post without concern. 5G speeds support high-quality video and fast uploads across the city.
- Use hotel wifi for the heaviest downloads. Hotel wifi is widely available; save large backups and downloads for it to keep your eSIM plan modest.
How much data for a San Juan stay
A city stay uses moderate data: maps, rideshare apps, browsing, posting and some streaming through the day, with hotel or resort wifi for evenings. A few days in San Juan fits comfortably in a 5 GB plan for international visitors, with the strong coverage meaning you can rely on mobile data freely throughout the city. A longer city stay may need more, handled with top-up.
Where we land
San Juan is one of the easiest coverage situations in the Caribbean. Excellent 5G everywhere you go, US-standard speeds, and the historic colonial city fully covered. For international visitors a travel eSIM unlocks all of it at a fraction of home-carrier roaming rates. Our Puerto Rico plans ride the strong San Juan networks, giving you city-grade coverage wherever you explore.
Plans for Puerto Rico
FAQ
Is there 5G in San Juan?
Yes, well-established 5G across San Juan including Old San Juan, Condado, Isla Verde, Miramar and Santurce. Puerto Rico has US-standard infrastructure, and the capital reflects that with coverage competitive with major US cities. The 5G is genuinely fast and well-distributed across the metro area, not just in select districts.
Is there mobile coverage in Old San Juan?
Excellent. The colorful colonial streets, the fortresses of El Morro and Castillo San Cristobal, the plazas and churches all have strong 4G and 5G coverage. Old San Juan's historic setting does not affect the modern network coverage; the US-standard infrastructure covers the colonial zone as well as any part of the city.
How much data do I need for a San Juan stay?
For a few days in the city, 3 to 5 GB is comfortable for most international visitors, covering maps, rideshare apps, browsing, posting and some streaming, with hotel wifi for evenings. The strong coverage means you can rely on mobile data freely throughout San Juan. A longer stay may need more, handled with top-up.
Can I use rideshare apps in San Juan?
Yes. The strong 4G and 5G coverage across San Juan makes rideshare and taxi apps reliable throughout the city and the metro area. This is the most practical way to move between Old San Juan, Condado, Santurce and the airport, and a travel eSIM keeps you connected to book rides anywhere without depending on wifi.
Which network is best for San Juan?
All three networks, Claro Puerto Rico, Liberty Puerto Rico and T-Mobile Puerto Rico, deliver excellent 4G and 5G across San Juan. The differences are negligible in the city. Any reputable eSIM on any of the three works well in San Juan. Network choice becomes more relevant for El Yunque and the mountain interior, not for the capital.