A practical guide to charging 4 devices at once from a single power bank — the real technical requirements and best models available in Egypt with prices.
TL;DR: Yes, you can charge a phone + laptop + earbuds + smartwatch from a single power bank — with 3 conditions: (1) at least 20,000mAh capacity (ideally 25,000mAh), (2) 3 or more output ports with USB-C PD support at 65W+, (3) total output of 100W+ so wattage distributes adequately. Best pick: Anker Prime A1695 — 25,000mAh, 165W total, dual USB-C + USB-A, charges a full laptop + 3 smaller devices simultaneously.