The Samsung Galaxy A31 uses a 5,000 mAh battery. This battery capacity is quite large for an A series cellphone. Given that the Samsung Galaxy A30s and Samsung Galaxy A31 are only equipped with a battery with a capacity of 4,000 mAh and the 5,000 mAh battery capacity is actually not something special considering that there are currently many cellphones with 5,000 mAh batteries on the market. This phone's battery life can last for 24 hours with normal use. Very good result.
The Samsung Galaxy A31 comes with a simple design. Even though at the bottom, there is a vertical line pattern which actually doesn't give a different impression. The appearance of the design is simple. The back of the cellphone itself is made of plastic. One thing that is starting to be understandable considering that many cellphones have plastic designs. Despite its plastic design, this phone is solid and easy to grip. This solid design combines with the relatively thin mobile screen bezel. This gives an attractive and contemporary impression thanks to the Infinity-U display screen concept.