Mexico eSIM for 21 Days
Choose a package that lasts the trip and fits your real data pattern rather than buying solely from the headline price.
| Provider | Package | Validity | Price |
|---|---|---|---|
| Saily | 3 GB | 30 days | US$9.99 |
| Saily | 5 GB | 30 days | US$14.99 |
| Saily | 10 GB | 30 days | US$23.99 |
| Saily | 20 GB | 30 days | US$37.99 |
| Airalo | Unlimited | 30 days | US$62.00 |
How much data for 21 days?
Light: about 5.3 GB before a safety buffer — Maps, messaging, email and light browsing.
Moderate: about 15.8 GB before a safety buffer — Navigation, social media, browsing and some short video.
Heavy: about 31.5 GB before a safety buffer — Frequent social/video use plus hotspot or uploads.
Remote work: about 63.0 GB before a safety buffer — Hotspot use, video calls, cloud files and heavier streaming.
A 20% buffer is useful if you expect navigation-heavy days, hotspot use or cellular photo backup.
Validity can eliminate an otherwise cheap plan
A package that expires before day 21 is not a complete solution unless you plan to top up or buy another package. Compare full-trip cost rather than the lowest entry price.
Price is not the only filter
Check the local network, hotspot policy, high-speed fair-use rules, activation timing and whether you need ordinary voice/SMS. For Canadian travellers, keeping the home SIM active for incoming SMS can also affect the setup.
Primary provider sources
Related tools
Calculate your own data need →
All Mexico package benchmarks →
General 21-day travel-data guide →
Pricing snapshot: September 12, 2026. Re-check live packages before purchase.