Formal:
* मोबाइल फ़ोन (mobile phone): This is the most common and literal translation.
* सेल फ़ोन (cell phone): This is also widely used, especially in urban areas.
Informal:
* मोबाइल (mobile): This is a shorter, more casual version.
* फ़ोन (phone): This is the most informal way to say "mobile phone", as it's the general word for "phone" in Hindi.
Other options:
* हैंडसेट (handset): This is a more technical term.
* स्मार्टफ़ोन (smartphone): This is specifically for smartphones.
Ultimately, the best way to say "mobile phone" in Hindi depends on the specific situation and your audience.