Intelligent Fast Charger: 2w output power for Apple Watch series 1.0/2.0/3.0; 7.5W output for Apple iPhone X / 8 / 8 Plus/ XS/ XS Max/ XR. Apple Watch series 4 is currently not supported.
The new iPhone XS and iPhone XS Max support wireless charging. That is, you can toss them onto a charging pad instead of plugging in a Lightning cable. Obviously, this is more convenient when you're at home - you can put a pad on your nightstand, desk or hallway table
Less wear on Lightning cables
On the other hand, you will go through fewer cables when wireless iPhone charging becomes the norm. Wear and tear on cables will be reduced to almost nothing. Once you have plugged in your wireless charger with its wire, you're done. There's no constant plugging and unplugging to fray the connection between your Lightning cable and plug.
Convenience, especially when charging multiple devices
You can charge your iPhone, Apple watch and AirPods at the same time. On top of that, it is a fast charger.
SPECS: USB Ports: 1 Quick Charge Technology: Qualcomm Quick Charge 2.0, Qualcomm Quick Charge 3.0 Quality Certification: RoHS,C-Tick,CE,FCC,CCC Output Interface: USB Input: 12V/2.5A Output: 9V/1.67A Adapter included Item doesn't support Apple Watch series 4