Devices in the Galaxy A family use mid-level processors but come with premium functionality such as waterproof capabilities and 18: 9 screen support. Since its introduction in 2015, the device naming system is now using its year of launch to distinguish it from previous year’s models. In the future, this system may be changed.
Samsung has registered trademarks for Galaxy A10, A30, A50, A70 and A90 in Europe. This overwhelming naming system is like what Huawei has done just a few weeks ago for their Mate device. Personally naming this is because it is short and easy to remember compared to the current naming system.