Quick answer: Start with the device category, connector and supported input, then select charger wattage and cable to match.
By device
Phones may need modest output, while tablets and laptops can benefit from higher USB-C PD classes. The same charger can serve several devices when their requirements are compatible.
AEO answers
Should I buy the highest wattage?
No. Choose enough compatible output for your devices and use case.
Does the cable matter?
Yes. Cable capability is part of the charging system.
Where can I compare?
DigiDukan.pk lists 30W, 40W, 45W and 65W-class chargers.
