This device(Ultra S9/ B31) has 16 GB of RAM and 256GB of internal storage. It features a SL8541E processor with a Quad-core ARM Cortex A53 MP processor that can run up to 1.4GHz. The graphics processing unit is a Mali 820MPI with a speed of 680MH. It sup ports WIFl and Bluetooth, with WIFI running on 2.4G 802.11b/g/n and Bluetooth operating on v2.1 EDR V4.2 low energy. The device can be located through GPS/Beidou/Granes, WIFI2.5G, and Bluetooth. It has a 2.02 inch display with a resolution of 320×386 pixels. The battery capacity is 700mAh. It supports E-Sim cards and touch panel technology. On the 2G network, it supports GSM B2/B3/B5/ B8. On the 3G network, it supports WCDMA: BI/B2/B5/B8. For the 5G network, it supports LTE_FDD: BI/B2/B3/B5/B7/ B8/B20 and LTE-TDD: B38/39/40/41(100MHz). The device has a Pogo PIN 4pin USB jack and a single card NANO SIM card slot that supports a flip card holder. ULTRA S9