Why use an eSIM in Azerbaijan?
Azerbaijan has a rule that catches phone owners off guard: a handset brought into the country and used with an Azerbaijani SIM has to be registered on the state IMEI database, and after a grace period of thirty days an unregistered phone is cut off from local networks. Tourists rarely stay that long, but it is one more form on top of the passport registration at the Azercell, Bakcell and Nar kiosks in Heydar Aliyev International (GYD).
A travel eSIM sidesteps all of it, because it roams onto a partner network rather than putting an Azerbaijani SIM in your phone. The Baku trip itself is data-hungry: Bolt rides between the Old City and the Flame Towers, maps in the lanes of Icherisheher, menu translation, and day trips to Gobustan, Gabala and Sheki where you are the navigator.
Home-carrier roaming here is usually priced by the day. An eSIM for Azerbaijan is a fixed plan installed at home that starts when it first connects at Baku, with your home SIM kept for calls and OTPs. See the plans above.

