Android Central

The first detailed information on the Japan-only Xperia Acro HD and Xperia NX has emerged along with promotional images, following Sony Ericsson's announcement of the devices on Monday. If you've been following Sony's CES presence over the past few days, then both phones may look strangely familiar -- the Acro HD is a 4.3-inch version of AT&T's Xperia Ion, while the Xperia NX appears to be more or less identical to Sony's international flagship phone, the Xperia S. Interestingly, the Acro HD's spec list also notes that it's a "waterproof" device, a feature that's not often seen on mainstream smartphones. Besides that, both phones feature a now-familiar spec list -- a 1.5GHz dual-core Snapdragon CPU, 1GB of RAM and Android 2.3 Gingerbread, running on Sony's 720p HD "Reality Display".

The Sony Ericsson branding also seems to be alive and well in Japan, at least for the moment. Whereas the Xperia Ion and Xperia S are both Sony-branded devices elsewhere, the Acro HD and Xperia NX still feature the familiar SE logo. Both phones will arrive in Japan on NTT DoCoMo -- first the Xperia NX in February, followed by the Xperia Acro HD in March.

Source: Sony Ericsson Japan