Internet in Mexico City: eSIM & Connectivity Tips

eSIM from 1,00 USD · 100 MB. Networks: AT&T (5G).

Connectivity in Mexico City

What you need to know: Huge metro area; excellent 4G in tourist districts but drops in the metro tunnels.

Known weak-signal spots in Mexico

• Jungle cenotes and Yucatán interior (Chichén Itzá area)
• Mountain roads in Oaxaca and Chiapas highlands
• Ferry crossings to Cozumel / Isla Mujeres
• Underground caves and cenotes

Apps you'll need

• Ride-hailing: Uber, DiDi, InDriver — you need live data to book and track rides.
• Maps: Google Maps, Waze. Download offline maps for the area before leaving your hotel.
• Messaging: WhatsApp uses only ~30 MB/hr of active chat.

Practical tip

Indoor coverage in Mexico City (shopping centres, old buildings, underground areas) is often weaker than outdoors. If you lose signal inside, step outside or connect to venue Wi-Fi. For day trips outside the city, download offline maps in advance and don't rely solely on mobile data.

Quick checklist: stay online without surprises

The make-or-break moment is often the first 30 minutes after landing: maps, transport, messages. Install your eSIM on Wi‑Fi before you travel and switch mobile data to the eSIM when you arrive. That way you're not dependent on airport Wi‑Fi and you avoid accidental roaming charges.

For typical use (maps + messaging + light social media), 1–3 GB per week is often enough. If you tether for a laptop, take video calls, or stream daily, aim for 10 GB+ or a plan with fair-use throttling instead of a hard cut-off.

• Networks: AT&T (5G)
• Offline maps: download the area in Google Maps, Waze while you're on hotel Wi‑Fi.
• On the move: Uber, DiDi, InDriver + WhatsApp work well on low data — video and app updates are usually the real data drains.
• Common weak spots: Jungle cenotes and Yucatán interior (Chichén Itzá area) · Mountain roads in Oaxaca and Chiapas highlands
• City context: Mexico City: Huge metro area; excellent 4G in tourist districts but drops in the metro tunnels. · Cancún: Hotel Zone has strong coverage; interior of the peninsula can be patchy.

Phone setup tip: keep your primary SIM active for calls/SMS (so 2FA codes can arrive), but turn off mobile data on that line. Set the eSIM as your data line — it prevents accidental roaming on the wrong SIM and keeps WhatsApp/banking flows more predictable.

Current eSIM plans (examples)

Examples from our database — availability and pricing can change.