The samsung galaxy j2 ace is very comfortable & very smart colour of this mob phone. core processor and it comes with 1.5GB of RAM The phone 8GB of internal storage that can be expanded up to 256GB . its a micro sd card also. dual sim smart feature also in this phone . Connectivity options include Wi-Fi & 4g also supported in this phone. Sensors on the phone including Proximity sensor and Accelerometer in this phone. So my opinion its a best feature & mobile set in this area.