Earlier this week Sony unveiled the new Xperia Z5 series to the world, introducing three new models, the Z5, Z5 Premium, and Z5 Compact. All three handsets offer several key improvements over the Z3 and Z4 series, and their arrival is easy the biggest news of IFA 2015. However, what you might not know is that Sony actually has a fourth Xperia Z5 family member on the way, at least according to the China-based tech site CnBeta.com.

Japanese carrier NTT DoCoMo reportedly has a special variant of the Xperia Z5 Compact on the way, dubbed the Z5 Compact Premium. This model is said to offer the same Snapdragon 810 processor and overall looks over the Compact, but trades in the 2GB RAM for 4GB, and the 720p display for a 4.6-inch 1080p display. The battery is also upgraded to 2900 mAh. Interestingly enough, that means this model has even more RAM than the Xperia Z5 Premium, which seems like an odd choice.

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While we have reached out to NTT DoCoMo to see if we can get an official confirmation, we aren’t 100% sure of the accuracy of this report at this time. In many ways this sounds more like a wish list than anything, and so there is at least a possibility that this could be a faked advert seen in the image above. That said, Sony is no stranger to releasing better variants of their existing flagships.

After all, the Sony Xperia Z4 (aka Z3+) was criticized for not offering enough differences from the Z3, keeping the same looks, camera and 1080p display. And yet, shortly after, Sony would announce the Z4v for Verizon with a QHD display, making us wonder why Sony didn’t release the Z4 with a QHD display right off the bat. If reports of the Sony Xperia Z5 Compact Premium really are legit, we can’t help but feel the same here. The Z5 Compact is an impressive phone, but a 4.6-inch 1080p display and 4GB RAM would have really taken its “wow” factor to a whole new level.

What do you think, surprised that Sony would prepare a Z5 Compact Premium so soon after launching the Z5 Compact? Let us know your thoughts in the comments.