Are the one cables from Walmart certified with a chip in them

Read the link where you came from

Identify counterfeit or uncertified Lightning connector accessories

All cables certified to be use with Apple devices have MFi certification, click and read link above in blue.

Yes, if the seller is walmart.com and its an apple cable. Do not buy from third party sellers.

Walmart is an authorized apple reseller. So is best buy and target, so you

can get genuine cables at those places and for less than the apple store.

Buy cables marked as MFi, see my post above.

Only Apple certified cables are marked with MFi or directly from an Apple Store