Apple (NASDAQ: AAPL) reported selling 50.76 million iPhones in its most recent quarter, generating $33.25 billion in revenue from such sales. On a year-over-year basis, unit shipments were down 1%, but thanks to a richer mix of iPhone 7 Plus devices compared to iPhone 6s Plus devices in the prior cycle, increases in average selling price helped drive iPhone revenue during the quarter up 1%.