Could Samsung be preparing an answer to the Sony Xperia Z1 Compact, the first Android handset that sported high-end specs despite being a mini variant of a flagship phone? A phone with the model number SM-G750A seems to suggest so. According to the device's user agent profile, it has a 720p display and a 2.3GHz processor (likely a Snapdragon 800), which indicate that the phone could have a small screen but otherwise high-end internals. If this is the Galaxy S5 mini and the specs are final, it would mean Samsung is changing tradition and finally giving us what we've always wanted: a flagship phone that caters to those who are looking for a phone they can easily use with one hand.
The SM-G750A – the A means it's an AT&T variant – is running on Android 4.3 at the moment, though this will likely change to Android 4.4.2 upon launch. It's possible the screen resolution in the UAProf is for a prototype and the final device will have a 1080p display and be a completely different device than the Galaxy S5 mini – Samsung no doubt has a lot of upcoming smartphones in the pipeline, and we'll just have to wait and watch where the SM-G750A factors among them.