Amazon Fresh groceries are discounted for Prime members. Here's how it works. You decide if it's a good deal.

• Amazon has bet big on its hybrid online and brick-and-mortar grocery store, Amazon Fresh.
• You can purchase groceries online and get them delivered, via local pickup, or in a physical store.
• The cost of Amazon Fresh delivery depends on how much you spend and whether you’re a Prime member.

Amazon Fresh is the e-commerce giant's native grocery store.

The company has invested heavily in the grocery space, with somewhat limited results. Even after Amazon's Whole Foods acquisition in 2017, Amazon had captured just over 1% of the grocery market in the US.