20W vs 45W vs 65W Charger — Which One Does Your Phone Actually Need?

Most people buying a charger in Pakistan end up choosing based on price, not on what their device can actually use. Here's the direct answer.

Short Answer

• 20W — Right for: standard iPhones (13/14/15/16), most mid-range Android phones. Charges a phone 0-50% in about 30 minutes.
• 45W — Right for: Samsung Galaxy S and Note series (Super Fast Charging 2.0), Google Pixel, iPad Pro. Anything above 20W on a phone that only supports 20W won't charge faster — the phone caps the speed itself.
• 65W and above — Right for: laptops, MacBooks, or charging a laptop and phone from the same charger. Overkill for phone-only use unless you want one charger for everything.

Why More Watts Isn't Always Faster

A charger's wattage is a ceiling, not a guarantee. Your phone's charging chip decides how much power it actually draws — a 65W charger plugged into a phone that only supports 20W charging still charges at 20W. The extra wattage is wasted unless you're also charging a laptop or a device that can use it.

Matching Charger to Device

Our Recommendation

If you only charge a phone, match the wattage to what your phone actually supports — buying higher doesn't help. If you want one charger for a phone and a laptop, go with 45W-65W GaN chargers like the Anker Nano 45W or Anker 30W Nano, which are small enough to travel with but powerful enough for both.

You can browse our full range of Apple, Samsung, and Anker chargers, all verifiable in person at our Saddar, Karachi store or delivered nationwide with Cash on Delivery.

This is general charging guidance based on publicly available specifications; always check your specific device's supported wattage in its manual or manufacturer site for precise figures.