More pockets do not necessarily make a diaper bag easier to use. Too many similar compartments can leave you opening three zippers to find a clean outfit. Compare bags by the tasks you perform rather than the number of storage features listed on the tag.
Gather a typical afternoon's supplies before shopping. Use that collection to judge capacity, allowing space for used clothing and items added during the outing. A bag that fits only when every object is arranged perfectly may be frustrating to repack away from home.
Test the main opening
Can you see the contents without removing everything? Does the opening stay accessible when the bag rests on a stable surface? Check how easily you can reach changing supplies, while remembering that the baby needs a safe place or appropriate supervision as you handle the bag. Convenience should not depend on managing a complicated zipper while leaving a child unsecured.
Choose a few distinct areas with clear purposes. One pocket for adult essentials and a separate place for used clothing may be more useful than several narrow slots. If insulated storage is included, follow its actual performance and food-storage guidance; the label insulated does not promise indefinite safe storage.
Look inside as well as outside. Check seams, lining and cleaning instructions. Spills and crumbs are easier to deal with in a bag that can be cleaned as directed and has fewer unreachable corners. A pale lining can make small items easier to see, but the best choice depends on how the bag opens and how you use it.
Carry the weight you intend to pack
Try the straps with a realistic load. A comfortable empty bag can feel different after diapers, clothing and feeding supplies are added. If two caregivers will share it, check that both can adjust and use it easily.
Do not choose a bag on the assumption that it will always hang from stroller handles; that can create a tipping hazard and may conflict with the stroller's instructions. Plan to carry it or use permitted storage within the stroller's limits.
The most useful bag makes the common items obvious and keeps the total load manageable. It does not need a special pocket for every possible future purchase.