Mobile Xiaomi Redmi 17 4G 4/256GB black. Key Technical Specifications. • Storage Upgrade: Equipped with 256GB of eMMC 5.1 built-in storage, which can be expanded even further using a microSDXC card.. • Memory Configuration: 4GB of LPDDR4X RAM, which can be virtually expanded by leveraging Xiaomi's RAM extension software.. • Display & Build: A giant 6.9-inch HD+ IPS LCD display with a fluid 120Hz refresh rate, protected by tough Corning Gorilla Glass 7i. It has an IP64 dust and splash resistance rating and weights 232 grams.. • Performance: Powered by the octa-core MediaTek Helio G91-Ultra processor.. • Battery Powerhouse: Outfitted with a massive 7,500 mAh battery that supports 45W wired turbo charging and 22.5W reverse wired charging to function as a power bank.. • Camera & Extras: A 50MP main rear AI camera and an 8MP front selfie camera. Includes dual stereo speakers, a side-mounted fingerprint sensor, a 3.5mm headphone jack, and a customizable rear RGB notification light built into the camera island.