Internal 256GB 6GB RAM. IP68 dust/water resistant (up to 6m for 30 mins). 2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM). SIM Dual SIM (Nano-SIM, dual stand-by). The coating can penetrate deep into the headphone jack and charging jack of the machine, while protecting the motherboard and components.