To com­bat long waits at Wal­mart check out lines, the com­pa­ny is test­ing a new smart­phone mobile app check­out sys­tem at some of its stores.  Cus­tomers would scan their items with their phone and then bring every­thing to a self check­out counter for payment.

Wal­mart has already announced that it plans to add self check­out lines to its stores but, if the lat­est mobile app ini­tia­tive is imple­ment­ed,  it could lead to even faster check outs.  Read more on this sto­ry.