We see why you might be a little puzzled. Didn't Sony just release an Xperia Z4? So why is there a whole new Xperia Z3+? Has Sony lost their marbles? The Xperia Z3+ is after all a lot more similar to the Xperia Z4 than the Xperia Z3.
But as it remains, the Xperia Z4 exists only in Japan and has two additional features that are key enough to set it apart from the Xperia Z3+. Chang Seng Hock, Sony’s Marketing Director for SEAO, SOMC, explains, “The Xperia Z4 model addresses a specific need to support the Japanese market with a new flagship device for Sony’s customers with additional features such as the Digital TV (DTV) and FeliCa (contactless RFID smart card system).”
So what about the Z3+?
“In markets outside of Japan, we have introduced the Z3+ as a premium addition to the existing flagship series. The Xperia Z3 continues to perform well as our flagship device and Z3+ aims to address the needs those customers who would like to have the very latest features and refinements."
"We didn’t want to confuse the customer into thinking that the Z4 is a replacement of Z3, we want to position the Z3+ as the latest addition of the Z3 family. The Xperia Z3+ and Z4 are essentially the same models with just slight differences in specifications to help them suit local market requirements.”
What's in a name?
When pressed for an answer to what will be the next one in the line-up and whether the rest of the world will catch up to Japan's naming strategy, he could only enigmatically answer, “When the time comes, you’ll probably understand why I cannot explain to you”.
Which leaves us to draw our own conclusion: the exciting new possibility of an Xperia Z4 that will be bigger and badder than the Xperia Z3+ to show up. While we might not know what the Xperia Z4 will be, we know what it won't be - everything that the Xperia Z3+ is. It makes sense given how quickly the Japan-only Xperia Z4 showed up (April 2015), hot on the heels of the Xperia Z3 (announced in early September 2014), yet only a shadow of its former self.