A more affordable model in the iPhone X series went on sale in Japan on Friday amid expectations that its sales volume will exceed that of the pricier XS Max and XS that made their market debuts last month.The XR model, which costs 84,800 yen ($755), is available in six colors including blue, red and yellow with a 6.1-inch liquid crystal display and improved camera functions using artificial intelligence."We made it highly functional but kept the price low," said an Apple Inc. spokesperson.Consumers can get a discount if they agree to a contract for a fixed period with either of the three m…READ FULL ARTICLE