What is eSIM and where does Saily help?
eSIM is a digital SIM you add to your phone. Install at home on Wi‑Fi, activate after landing, and skip airport SIM shops. Keep your number for calls/SMS; use the eSIM for data.
Key benefits for travelers
- Online on arrival
- Predictable pricing
- Multi‑country convenience
- Fast top‑ups
- No plastic, no queues
How it works — step by step
- Check compatibility and unlock status.
- Install the app on Wi‑Fi.
- Pick a country or a regional plan.
- Purchase and install the profile.
- Activate as data line after landing.
- Top up when needed.
Coverage and destinations
Regional Europe plans follow you across borders; single‑country plans suit city breaks. Expect the best performance in large cities and along main corridors.
Speed, limits and fair‑use
Busy cells may slow down briefly; everyday tasks remain fine. After heavy streaming, traffic may be deprioritized temporarily. Force LTE for steadier results in crowds.
- Hotspot allowed on many plans
- 5G in big cities
- Use Wi‑Fi for large updates
How much data do you need?
| Use case | Daily | One week | Notes |
|---|---|---|---|
| Maps + messaging | 150–250MB | 1–2GB | Offline areas help |
| Maps + social + browsing | 300–500MB | 2–4GB | Disable autoplay |
| Work + hotspot | 600–900MB | 4–7GB | Sync on Wi‑Fi |
| Video calls | 700–1200MB | 5–8GB | Use 360p/480p |
Roaming vs. eSIM vs. local SIM
Carrier roaming
- Zero setup
- Pricey on long trips
Local SIM
- Good for long stays
- Stores & paperwork
Travel eSIM keeps your number while data stays predictable.
Data‑saving tips
- Offline maps
- Updates on Wi‑Fi
- Pause cloud backups
- Lower video‑call resolution
Reviews snapshot
Quick installation on Wi‑Fi and smooth border handovers are common themes. Unlock your phone and avoid weak airport Wi‑Fi during install.
Touring multiple countries?
Our Europe guide explains plan types, coverage and border handovers.
FAQ
Will eSIM give me a phone number?
Travel eSIMs are data‑only. Keep your physical SIM for calls/SMS or use VoIP apps.
When does validity start?
Usually when your phone first registers on a supported network after arrival.
Is hotspot allowed?
Often yes; small plans drain quickly with laptops — pick a larger tier if needed.
Ready to travel lighter?
Install at home, activate on arrival, and start exploring.