Involves researching and comparing, not necessarily physically visiting different stores. She shopped around online before buying her laptop.
Pro Tip 2/3
Wider Implications
'Shop around' suggests careful thought and consideration, implying smart consumer behavior. They spent the weekend shopping around for car insurance.
Pro Tip 3/3
Time Involved
The phrase often implies that a good amount of time is spent to find the perfect deal. Take the time to shop around for a mortgage with lower interest rates.