key specification and vivo authorized showroom locationvivo Y31 Latest Smartphone of vivo mobile phone Launched in 2021, January 20. The Smartphone said to be 6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio)Resolution 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) feature Powered by Qualcomm SM6115 Snapdragon 662 (11 nm)CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)GPU Adreno 610: vivo Y31mobile network Bangladesh and coverage frequencyvivo Y31 network Technology GSM / HSPA / LTE 2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 23G bands HSDPA 850 / 900 / 21004G bands 1, 3, 5, 8, 34, 38, 39, 40, 41 Speed HSPA 42.2/5.76 Mbps, LTE-A sources of data collection