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The Samsung Galaxy A31 (SM-A315F/DS 128GB) is a good Android phone with 2Ghz Octa-Core processor that allows run games and heavy applications.
An advantage of the Samsung Galaxy A31 (SM-A315F/DS 128GB) is the possibility of using two mobile carriers, a Dual-SIM device with two SIM card slots.
Great connectivity of this device includes Bluetooth 5.0 + A2DP/LE, WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO and NFC to make mobile payments or connection to other devices.
Including the battery, the Samsung Galaxy A31 (SM-A315F/DS 128GB) phone has 185 grams and it's a very thin device, only 8.6mm.
|Display type||Super AMOLED capacitive touchscreen, 16M colors|
|Display Size||6.4 inches, 98.9 cm2 (~84.9% screen-to-body ratio)|
|Resolution||1080 x 2400 pixels, 20:9 ratio (~411 ppi density)|
|SIM||Dual SIM (Nano-SIM, dual stand-by)|
|OS||Android 10, One UI 2.0|
|Card slot||microSDXC (dedicated slot)|
|Internal||128GB 4GB RAM|
|Back Camera||48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF|
|Back camera 2||8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm|
|Back camera 3||5 MP, f/2.4, (macro)|
|Back camera 4||5 MP, f/2.4, (depth)|
|Features||LED flash, panorama, HDR|
|Selfie Camera||20 MP, f/2.2, (wide)|
|Sensors||Fingerprint (under display, optical), accelerometer, gyro, proximity, compass|
|Audio 3.5mm jack||Yes|
|WLAN||Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot|
|Bluetooth||5.0, A2DP, LE|
|NFC||Yes (market/region dependent)|
|Dimensions||159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)|
|Weight||185 g (6.53 oz)|
|Battery||Non-removable Li-Po 5000 mAh battery|
|Charging||Fast charging 15W|
|2G bands||GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)|
|3G bands||HSDPA 850 / 900 / 1900 / 2100|
|4G bands||1, 2, 3, 5, 7, 8, 20, 38, 40, 41|