Xiaomi Redmi 15 5G delivers a large 6.9-inch FHD+ display, a robust 7000mAh battery with 33W fast charging, and modern 5G connectivity. It runs on the Snapdragon 6s Gen 3 with up to 16GB RAM effective via memory extension, and offers expandable storage up to 2TB. The triple-camera setup includes a 50MP main sensor, while a 8MP front camera supports HDR and portrait modes. Security features include a side fingerprint sensor and AI face unlock, with Xiaomi HyperOS 2 providing a smooth, feature-rich experience. The phone is IP64 rated for splash and dust resistance and includes NFC in markets where available. It ships without a power adapter in the box, aligning with eco-friendly packaging trends.