The smartphone comes with an 80W SUPERVOOC charging adapter included in the box, along with a Type A to Type C USB charging cable and a protective case. There is no separate mention of a charger being excluded, so the charger is included. This is confirmed by the official package inclusions and unboxing details.

The smartphone comes with an 80W SUPERVOOC charging adapter included in the box, along with a Type A to Type C USB charging cable and a protective case. There is no mention of the absence of a charger in the official package contents. This means it does have a charger included.

The 120W one is better not to use. As a compatible 80W I recommend this one, which has the same charging technology. OnePlus Power Adapter (80W)