Of course, brother. You can structure a nice and trustworthy description for selling your mobile incorporating your words like this:
Infinix GT 30 Pro —
Infinix GT 30 Pro will be sold.
The phone has been used for only 3 months, used by my sister.
Condition: Full Fresh
Model: Infinix GT 30 Pro
Usage: Only 3 months
Box: Available
Original accessories: Available