The published specifications are for a device with model name 'M1804C3DE'. However, this is expected to be the Redmi 6A, which succeeds the Redmi 5A launched in November last year.
According to the specifications, the new model is equipped with a 5.45 inch screen, which will most likely have an aspect ratio of 18: 9. The dimensions of the device are 147.46 x 71.49 x 8.3 mm and there is a battery with a capacity of 3,000 mAh.
The picture below shows the Redmi 5A , currently available for around 100 euros.