The results show that the SM-A510 will feature a 5.2-inch screen, with a 1080 x 1920 resolution. An octa-core 1.6GHz CPU is under the hood, along with the Mali-T720 GPU. 2GB of RAM is inside, along with 16GB of expandable internal storage. A 13MP camera is on back, with a front-facing 5MP shooter available to take selfies and handle video chats.
The sequel to the Galaxy A3 (SM-A310) will carry a 4.7-inch, 720 x 1280 screen. The Galaxy A7 sequel (SM-A710) will offer a 5.5-inch display with a 1080 x 1920 resolution. All three phones have yet to be unveiled, but that could be happening soon. At that time, not only will we find out pricing and availability for the trio, but we will also find out what the name of each handset will be.
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source: Winfuture.de (translated)