Product info
Mar Del Plata eSIM plans
| Unlimited data · 5 days | $28.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $38.99 | Buy eSIM |
| Unlimited data · 15 days | $56.99 | Buy eSIM |
| 3GB prepaid eSIM · 14 days | $9.49$3.16 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $16.49$3.30 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $27.79$2.78 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $35.79$2.39 / GB | Buy eSIM |
| 20GB prepaid eSIM · 90 days | $43.99$2.20 / GB | Buy eSIM |
| 50GB prepaid eSIM · 90 days | $93.79$1.88 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Argentina. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Mar Del Plata?
Beach weekend – 3 GB
Maps, Instagram, and messaging over 3-4 days.
A week on the coast – 10 GB
Maps, social media, and video calls home.
Coast + Buenos Aires – 20 GB
Beach time plus the capital. One eSIM covers all of Argentina.
Remote work – Unlimited
Hotspot for your laptop from a café near the rambla.
Coverage and network
Honest about coverage
Argentina mobile networks
At 68 Mbps Argentina ranks 69th worldwide. Mar del Plata is a large coastal city and covered accordingly, with the summer population surge being the thing you notice rather than the raw speed.
Speedtest Global Index · Mobile · Argentina · June 2026
Download
67.54 Mbps
Upload
10.74 Mbps
Latency
26 ms
Global rank
#69 of 98
Real Mar del Plata conditions
- Centre & the ramblas: Good 4G/5G along the coastal avenues, around Playa Bristol and the port. Fine for maps, photos and video calls.
- January peak season: This is the honest one. Mar del Plata is Argentina's big summer resort and its population multiplies over January, so beachfront speeds noticeably slow at peak times. Local SIMs hit exactly the same congestion.
- Coast road to Miramar & Villa Gesell: Coverage follows the coastal route and the resort towns along it, with occasional thin patches on the quieter stretches in between.
One eSIM, the whole country
Mar del Plata is just the start - this eSIM covers all of Argentina. Keep the same plan for Buenos Aires or a trip out to Mendoza.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Argentina. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Mar del Plata
Free Wi-Fi at Mar del Plata Airport
Turned up without it? Astor Piazzolla has free terminal Wi-Fi on the same Aeropuertos Argentina login as the Buenos Aires airports - connect and finish setup before your taxi.
Side by side
Mar Del Plata eSIM Comparison
Indicative comparison based on publicly listed Argentina plans as of July 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Where to buy a SIM card in Mar del Plata?
There are Claro, Personal and Movistar stores in the city centre and in Los Gallegos shopping. Kiosks sell unregistered SIMs that you then have to register yourself in Spanish. A travel eSIM like Ohayu skips it - install before you travel and after arriving it can connect you to supported networks like Claro, Personal or Movistar.
Is registration required for a local SIM?
It is - Argentina ties every line to a named person, and your passport stands in for the DNI you do not have. In a seasonal resort town the operator stores get busy in January and February, which is exactly when you would be queueing. Ohayu issues no Argentine number and needs no registration.
Will data be slow in the summer?
At peak times on the busiest beaches, yes. Mar del Plata is the country's biggest summer resort and its population multiplies over January, which congests the local networks. This affects local SIM users identically - it is a tower capacity issue, not an eSIM one. Off-peak and outside January it is consistently fast.
Why isn't my eSIM working in Mar del Plata?
Along the emptier coast road south of the city, coverage thins. If none of that applies, check the phone has not defaulted to your home SIM for data - switch it to Ohayu, allow roaming, restart the radio. Otherwise chat and support@ohayu.com are open 24/7.
