The Sony Xperia AX (SO-01E) has gone on sale via NTT DoCoMo in Japan today. The handset is a variant of the Xperia V (LT25i) that is due to launch in some markets in the next few weeks. To celebrate the release, Sony Mobile Japan has a special offer on the SmartWatch for those that have purchased the Xperia AX. You can get the SmartWatch for a reduced price of Yen 6,980 (previously Yen 9,480). Check out an unboxing video of the handset below.