If you bring a European-compatible/unlocked cell phone from the U.S., you can buy a pre-paid SIM card (i.e. DNA, Elisa) at a convenience store. If you don't have a European-compatible phone, get a cheap (or second-hand) one and buy a pre-paid SIM card. We recommend pre-paid phone plans due to their simplicity and great coverage.
If you have a locked phone (through a provider in the States i.e. Verizon, A&T) check with the provider if you are able to add another SIM card to the phone. If yes, you can get a pre-paid SIM card. You can still use your U.S. phone and all of the apps via Wi-Fi. You can also Examples of popular communication apps in addition to Social Media platforms are Whatsapp, Signal, Google Fi, Google Voice, Number Barn, TextNow, GroupMe, etc.
Pre-paid SIM Cards
Pre-paid start-up kits are available at convenience stores across the country (R-Kioski is one popular chain). The start-up kits range in price from 5 to 20 euros and include a Finnish phone number and, depending on the price, approximately 5-10 euros in credit. Additional credit may be purchased at convenience stores or at some ATMs. You can start using your new phone number immediately, along with text, voice mail, and data services. You need to remember that the prepaid kits do not work outside Finland.
Buying a phone in Finland
Some grantees purchase a cell phone in Finland. The cheaper models may not come with an Internet connection or other fancy features, but they have all the functions you need to make ordinary local and international phone calls and text messaging. You might want to look into buying an unlocked phone from the U.S. as the might be cheaper than in Finland.