The Samsung Galaxy A3 (2015) or Samsung Galaxy A3 2015 Edition is an Android aluminum smartphone manufactured by Samsung.

It was introduced in October 2014, along with the larger and related Samsung Galaxy A5.

Samsung Galaxy A3 (2016) is a successor to Samsung Galaxy A3.

Both Samsung Galaxy A3 models SM-A300F and SM-A300FU currently run Android 6.0.1 Marshmallow, however all other models can only be upgraded to Android 5.1 Lollipop.

The phone was introduced in a sequence of models, with different features: So, the most significant differences are between the models A300H/DS, compared to A300FU.