Ans: Not recommended
If you are buying the laptop online from United States, you can get it via shipment which means you will never get it. The only possible way to get it shipped is through DHL or FedEx who can guarantee its shipment however once they have the package they will call you at their office and you will have to pay they duty before accepting it which is not a small amount. Just for giving an estimate.
Decent laptop price is United States: $500
Shipment charges of FedEx / DHL without insurance (Around 3Kg package) $130
Total without import duty- $630 @ 85PKR/USD (53,550 Rs.)
This amount does not include the duty and credit card extra charge for international payment which is around 2.5% to 3% of total transaction amount. you will have to pay in Pakistan which in unknown. I am pretty sure that a $500 worth of laptop can be purchased easily for 53,550 Rs in Pakistan.
Websites that send electronics & Laptops in Pakistan?
Some of the websites offer international shipment to some countries however I have never encountered any website that offers shipment to Pakistan. The only way of shipping a laptop to Pakistan is through www.ebay.com on which you will have to make account. For payment you will have to see if some seller accept credit card as mostly seller prefer to take “Paypal” whose services are not available in Pakistan.
On Ebay you will hardly find a seller who will send a laptop to Pakistan, may be some Chinese. I have asked some Chinese sellers to send some products (Cell phone skins) to Pakistan and he responded, “9 out of 10 packages I send to Pakistan lost and never reach the buyer so I will not send it”. You will have to contact the seller individually to see if they can work with you and ship the item via reliable courier service which will be quite expensive.
Note: If a United States seller is selling a laptop and is ready to ship it to you, do not let him ship via “United States Postal Service (USPS). USPS will hand over the package to Pakistan Post and they will eat it up. What a Shame.