Apple and Samsung were the only smartphone brands to achieve overall satisfaction scores that are at or above the study average according to the J.D. Power. Apple's iPhone and Samsung Galaxy series smartphones are neck and neck depending upon which carrier.
The J.D. Power Award Recipient is Apple's iPhone. Samsung came in second.Overall satisfaction with smartphone devices is highest among AT&T customers (843), followed by Sprint (835); T-Mobile (825); and Verizon Wireless (825) customers.