If your charger is still the size of a deck of cards and only feeds one device, you're carrying yesterday's tech. GaN — gallium nitride — is the reason a modern charger can be smaller than the old one and still push 100 watts.
What GaN changes
GaN moves electricity more efficiently than traditional silicon. Less wasted energy means less heat, and less heat means engineers can pack more power into a smaller shell. The result: a charger that disappears into a bag and still tops up a laptop.
How many watts do you need?
- 20–33W — fast-charges a phone and most earbuds.
- 65W — a phone and a tablet at once, or a thin-and-light laptop.
- 100W — a full-size laptop plus a phone, from a single wall plug.
Ports are the real story
One-port chargers are a compromise. A dual- or triple-port GaN charger replaces the tangle of bricks on your nightstand and in your carry-on. Power sharing is automatic — plug in a laptop and the charger reallocates on the fly.
Travel-proof by design
Smaller, cooler, and more powerful is the whole pitch. One GaN charger and a couple of braided cables is a complete travel kit.