If you want to message your driver and open your hotel address on arrival, having a data plan chosen beforehand is useful. A travel eSIM can provide that without swapping a physical card. A local SIM may suit you if you also want a Peruvian number or are staying longer. Start with your phone, route and needs: internet only, or ordinary calls and SMS too. Save your first address and pickup arrangements offline beforehand.
Three ways to arrange a connection
Roaming uses your existing plan in Peru under your provider's international terms. A travel eSIM is a separate package for Peru or a region. With a local provider you take out a Peruvian service on a physical SIM or, where offered, an eSIM. ‘eSIM’ describes how the SIM sits in your phone, not whether you get a local number, how much data you have or which network you use. Compare products for the same trip length and features.
For a short trip using maps, messages and bookings, a travel eSIM installed beforehand can be convenient. If you want ordinary local calls, compare a package with call minutes and a suitable number. For substantial data use or a longer stay, a local service is also worth comparing, including registration and top-ups. Check your existing provider's Peru package too: the price of a separate product does not tell you how much you save against your current plan.
Will the package work with your phone?
Check your exact phone model and variant, not just its brand. Apple requires an unlocked iPhone for use with another provider; its lock status appears under Settings, General, About. For a Samsung device, look for ‘Embedded-SIM’ in the model specifications. Then check your chosen provider's compatibility list as well. If your phone does not support eSIM, a suitable physical SIM or roaming remains an option.
A local eSIM is not always an entirely online purchase. Claro Perú describes a customer-centre visit for its standard eSIM, where the device is checked and you receive a QR code. That is a different purchasing process from a travel package installed through an app. Before buying, establish that your phone, identity document and chosen prepaid product are supported together.
Buying a local SIM: include registration in the plan
Expect identity checks when taking out a local service. Have an official customer centre confirm beforehand which product it can supply to a visitor without a Peruvian identity document, and the documents and checks required. Do not assume a passport will be sufficient at every sales point.
Allow time for this if buying locally, and keep an alternative ready for your first transfer. Register the service in your own details and keep the receipt, number and support contact. After activation, test whether you can send a message and open a page without Wi-Fi. Having a card in the phone or a profile installed is not the same as working data. For a travel eSIM, follow that particular product's identity and purchase conditions too.
Internet does not automatically include a phone number
A data-only package does not provide ordinary calls and SMS. Airalo explicitly distinguishes these services; internet calling and messaging apps can work if already set up. If you want a hotel to call you on a Peruvian number, choose that feature and confirm which calls are included. A bank verification SMS sent to your home number does not suddenly arrive on the new data eSIM. Before departure, work out how you will retain access to important accounts.
Installation, activation and choosing the right line
Before installation, read when the package validity starts. Airalo gives two possibilities, for example: installation or the first connection to a supported network. Do not install weeks ahead without knowing which applies. Use a reliable internet connection for installation and save the provider's instructions. Give your lines recognisable names such as ‘Home’ and ‘Peru’, so you know which setting you are changing.
Select the travel line for mobile data and prevent the phone from silently switching back to your home plan's data. Follow roaming instructions for each line: a travel product may require data roaming while you want it disabled on your home line. Apple warns that keeping both lines active can still incur roaming charges on the home line. If you want to keep it available for calls or SMS, check your own provider's separate charges.
Compare data, validity and sharing
Alongside the gigabytes, compare validity, when the package starts, top-up options and what happens when it runs out. For ‘unlimited’ plans, establish whether a daily allowance or reduced speed applies. If travelling together, compare separate packages with sharing a hotspot where the plan permits it. A shared connection requires the sharing phone to stay nearby, which is inconvenient when you head out separately.
Download large files on Wi-Fi and enable photo backups or app updates over mobile data only if you want them. Check usage in your phone or provider app during the trip. That is a better basis for topping up than assuming a fixed amount per travel day beforehand. For a video call or afternoon of work, the connection at your accommodation matters too, not just the size of your package.
Look at your accommodation and route, not just ‘Peru’
OSIPTEL's Checa tu Señal lets you look up reported mobile coverage by location and operator. The map uses operator-supplied information. For an Urubamba stay, for example, use the actual address rather than a general search for Cusco. For a travel eSIM you also need the name of its local network. ‘Peru’ on the package does not establish a connection on every part of a Colca drive or at a jungle lodge.
If you plan to work while travelling, establish where the accommodation has Wi-Fi: in the room, only at reception or in a shared area. For a fixed appointment, ask about the current connection in that particular spot. Preferably keep important calls off transfer days, and tell people beforehand when you may be unavailable. Another data package cannot replace an absent network.
Prepare the next leg offline
Before leaving, download a Google Maps area covering your next accommodation and the surrounding area you need. The offline map helps locate places, but Google does not provide offline walking, cycling or public-transport directions. Driving routes lack live traffic and alternative routes. A city map is also no substitute for an appropriate hiking map and route preparation in the mountains. Open the saved map without internet to see what is actually available.
Save the hotel address, exact terminal or meeting point, contact numbers and booking confirmations on your device too. Saving a link is not enough if the page will not open later. For tickets, follow the issuer's required format: a screenshot does not replace every digital ticket. Share essential travel details with a companion so they are not all on one phone. Do this in Arequipa before continuing to Colca, for example, and in Cusco before your next train journey or flight.