Buy a shirt from your favorite store while using a coupon and collecting reward points -- all with a tap or swipe of your phone or tablet -- and you’ll even help shave the retailer’s costs.
That’s JPMorgan Chase & Co.’s pitch for its new digital wallet, a mashup of payment technologies that the biggest U.S. bank unveiled Monday to challenge rival lenders, systems like Apple Inc.’s Apple Pay and a variety of other companies including PayPal Holdings Inc.
