This is the 15353rd most frequent Polish word.
smartfon
A smartphone.
The word 'smartfon' is used here as a direct object in its default singular form.
Kupiłem nowy smartfon wczoraj.
I bought a new smartphone yesterday.
The word 'smartfon' serves as the subject of the question, indicating the specific type of device.
Czy ten smartfon ma dobrą kamerę?
Does this smartphone have a good camera?
Here, 'smartfon' is used in the singular form as part of a possessive construction and indicates the item requiring an action.