Huaqiangbei

Start in the SEG and Huaqiang Electronic World towers, where stalls sell chips, connectors and phone parts by the tray and the repair benches will open anything you put in front of them. Prices assume you know what you want; nobody minds if you only look. The upper floors are quieter and stranger than the ground. Metro lines 1, 2 and 7; most stalls 10:00–18:00, thinner on Sundays.