Overall, smartphone customers are the most satisfied with their handset at AT&T (844) followed by Sprint (839), T-Mobile (835) and Verizon Wireless (829). Overall smartphone satisfaction tallied an 837. While 35% of Smartphone buyer cited "features" as their number one reason to buy a particular phone, that particular reason is not as important as it was back in 2011, when it was cited by 57% as their main reason to purchase a specific brand.
Interestingly, J.D. Power discovered that the reasons why you buy a certain smartphone model can help predict if you are going to like the phone. Those who selected a certain model because of price, are less likely to be satisfied (808 out of 1000) and will have lower repurchase rates (18%) than those who select a smartphone because of the operating system (860 and 35% respectively).
J.D. Powers also asked smartphone buyers for the most requested features that they are looking for in a new handset. A larger screen...did not make the list. What did make the list was seamless voice control (36%), built-in sensors that help users customize settings related to the environment (35%), and facial recognition and biometric security (28%). Pricing has also risen. The average smartphone cost $202 in the latest survey, up from $174 in the 2011 Volume II survey. 52% of those in the new survey said that they received a discount when purchasing their phone, down from the 60% who received a discount in the 2011 Volume II survey. For that, you can 'thank' T-Mobile.
The iPhone has won eight consecutive J.D. Powers Awards for smartphone customer satisfaction. That means it has won every year since the OG Apple iPhone was released in 2007.
source: J.D.Power via 9to5Mac