Samsung's Galaxy A51 SM-A515F specifications and features: this is a 6.5" (164mm) device with a FHD 2400 x 1080 screen resolution. The phone is powered by the Exynos 9611 soc with a Quad-Core Cortex-A73 2.3GHz & Quad-Core Cortex-A53 1.7GHz configuration. Memory is 4GB, 6GB, with the device offering 64GB, 128GB internal storage and up to 512GB of external memory. The Galaxy A51 features Accelerometer, Optical Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor and Hall Sensor. Notable features include Samsung Pay (MST), Bixby, Samsung Pay (NFC). The device measures 158.5 x 73.6 x 7.9mm and weighs 172g.