Act as a product designer with 10+ years of experience in kitchen appliances. Design a sleek, modern AI-powered hand mill for coffee enthusiasts that features [adjustable grind settings] (fine to coarse), [real-time feedback via a small OLED display], and [adaptive grinding speed] based on bean hardness. The mill should have an ergonomic [brushed stainless steel body] with a [non-slip silicone grip], and a [transparent bean hopper] to monitor bean levels. Include subtle LED indicators for battery life and grind consistency. The AI should learn user preferences over time and suggest optimal grind settings for different brewing methods (e.g., espresso, pour-over). Render the product in a minimalist kitchen setting with natural lighting, emphasizing its premium materials and high-tech functionality.