There is internet in the flat, and it is fibre. The password is on the welcome card and we tell you at the door. It is good enough for video calls and remote work.
If you need data outside, there are three options.
1 · eSIM. The easiest. You can set it up before you leave the plane, no ID needed, and the phone registration problem never arises — your handset runs a data line, not a Turkish subscriber line. Packages aimed at visitors are typically €10–20.
2 · A physical tourist SIM. Türk Telekom, Turkcell and Vodafone sell them at the airport and in the city. You need your passport. Airport prices are noticeably higher than a shop in town — do not rush, find a dealer in Beyoğlu.
3 · Wifi only. Nearly every café, restaurant and shopping centre has free wifi. The metro and tram have it too, but weakly.
The phone registration rule. If you put a Turkish SIM into a foreign handset, the device is cut off from the network after 120 days unless you pay a fee and register it. On a holiday of a few weeks this does not concern you — you will be gone long before. If you are staying longer, or you come to Turkey often, an eSIM removes the question entirely.
Calls. WhatsApp is the default here, and it is how we work too. Message rather than ring and you will get a faster answer.
Sockets. Turkey uses the European round two-pin socket (type C/F) at 220 volts. Bring an adapter if you are coming from the UK or the US; there is usually a spare in the flat, but we do not promise one.