Sony Mobile is on track to launch the Xperia Z4 in Japan later this month. SoftBank has announced that the Xperia Z4 (402SO) will hit its network on 12 June 2015. Pre-orders for the device have now opened at a price point of 81,120 yen (£423, €581, $646). NTT docomo is also due to launch the Xperia Z4 in the next few weeks although the pricing hasn’t been firmed up yet.
