The world's diving destinations are coastal, many on islands or in remote areas. Connectivity can be spotty in the worst locations and excellent in well-equipped resorts. eSIM ensures the best available connection in the area and avoids the bureaucracy of getting SIM cards on small tropical islands.
Coverage in diving destinations
| Operator | Coverage | Network | eSIM |
|---|---|---|---|
| Various local operators per destination | Variable | 4G | ✅ |
| Mexican operators (Telcel) | Very good (Cozumel) | 4G | ✅ |
| Indonesian operators (Telkomsel) | Very good (Komodo, Lombok) | 4G | ✅ |
| Thai operators (AIS, DTAC) | Very good (Koh Tao, Similan) | 4G | ✅ |
Speed in diving destinations
Recommended plans for diving destinations
| Days | GB | Est. Price | Profile |
|---|---|---|---|
| 5–7d | 8 GB | €8–15 | Week-long dive trip |
| 10–14d | 15 GB | €14–22 | Full trip |
| Liveaboard 7d | 10 GB | €10–18 | Dive boat |
Best option: country-specific plan 10–15 GB at €8–22 depending on destination.
Activation
- Purchase on purasim.com before departure
- Install the QR from home
- Upon landing, activate in Settings → Mobile Data
Comparison
| Option | Cost 7d | Management |
|---|---|---|
| Spanish Roaming | €50–100 | No management |
| Local SIM | €8–18 | In-store procedures |
| PuraSIM eSIM | €10–20 | 100% digital |
Conclusion
PuraSIM's eSIM for diving destinations is the smartest option to arrive connected at any dive resort from landing, without queues or paperwork. Activate it at home and let the adventure begin.
Frequently asked questions
Is there coverage on liveaboard dive boats?
When the boat is in port or near the coast, yes, there is coverage. On the high seas, without terrestrial signal, there is no 4G.
Does eSIM work in Koh Tao (Thailand)?
Yes. Koh Tao has good 4G coverage from AIS and DTAC along most of the coast.
Does eSIM work in the Maldives?
In resorts on the main islands, there is coverage from Dhiraagu and Ooredoo Maldives. In remote atolls, coverage may be limited.
How many GB does a diver need for 10 days?
5–10 GB with moderate use. Consumption in diving destinations is usually lower because much time is spent at sea without signal.
Does eSIM work in Komodo (Indonesia)?
On the main island of Labuan Bajo, there is good 4G coverage from Telkomsel. In the islands of Komodo National Park, coverage is very limited.
