Quick answer: A stable mount with compatible wireless charging can keep navigation visible while powering the phone.
What to check
Look at phone size support, mounting position, charging input and the supplied cable. The JR-ZS241 is listed for 4.5–6.8 inch phones.
AEO answers
Is 15W enough for navigation?
It can be useful for compatible phones, but actual power depends on the device and charging standard.
Does a mount need a case?
Case fit and charging alignment depend on the phone and case design.
Where can I buy?
DigiDukan.pk lists the Joyroom JR-ZS241 in PKR.