I tried to charge my iPhone using an Apple Watch charger.
A charger (power adapter) supplied with an Apple Watch will be a low rating (probably 5 Watts) which may be inadequate to charge recent models of iPhone, or at least it will be Very Slow. I routinely use at least a 12W charger for all my Apple devices.
Current iPhones use the Lightning port for a physical charger connection. The power adapter part of any charger has standard voltages for all manufacturers, and Apple can supply USB-C to Lightning cables to connect the iPhone to your USB-C power adapter, for example https://www.apple.com/shop/product/MKQ42AM/A/usb-c-to-lightning-cable-2-m?fnode=97&fs=f%3Dcable%26fh%3D458e%252B45c4
How about a Samsung Galaxy S10 phone charged with any iPhone? (Maybe Samsung Galaxy S10 and iPhone XS or XR could be charging together.) I said does iPhone and iPad use Samsung USB-C charger?
Does Apple Watch, Samsung wireless charger, or wireless charger work on iPhone?
