Buying a SIM Card

You want a local SIM card for your phone to get data and make calls.

You
Hola, necesito una tarjeta SIM con un plan prepago.
OH-lah, neh-seh-SEE-toh OO-nah tar-HEH-tah seem kohn oon plahn preh-PAH-goh.
Hi, I need a SIM card with a prepaid plan.
Buying a local SIM card is usually much cheaper than roaming. Look for Telcel, Movistar, or Claro stores depending on the country.
Clerk
Claro. Tenemos planes con datos desde cien pesos. ¿Cuántos gigas necesita?
KLAH-roh. teh-NEH-mohs PLAH-nehs kohn DAH-tohs DEHS-deh syehn PEH-sohs. KWAHN-tohs HEE-gahs neh-seh-SEE-tah?
Sure. We have data plans starting at a hundred pesos. How many gigs do you need?
You
¿Cuántos gigas tiene el plan de doscientos pesos?
KWAHN-tohs HEE-gahs TYEH-neh el plahn deh doh-SYEHN-tohs PEH-sohs?
How many gigs does the two-hundred-peso plan have?
"Gigas" is how Spanish speakers say gigabytes. Data plans are often sold in tiendas, convenience stores, or carrier shops.
Clerk
Ese tiene seis gigas con datos y llamadas ilimitadas por treinta días.
EH-seh TYEH-neh says HEE-gahs kohn DAH-tohs ee yah-MAH-dahs ee-lee-mee-TAH-dahs por TREYN-tah DEE-ahs.
That one has six gigs with data and unlimited calls for thirty days.