This wireless charger is USB powered and is magnetic in nature. Because of the small in size, it is portable and will easily fit into your bag. No need for carrying cables anymore, just plug into your laptop or to your power bank and you are ready to go.
The combination of you these two products is amazing (Solar powered power bank and this portable wireless apple watch charger). Check the gadgets category for this power bank.
USB Ports: 1 Output Interface: None Output Interface: 5V/1A Quality Certification: CE,RoHS,FCC,CCC Compatible Brand: APPLE Power Source: USB Model Number: for Apple watch 4/3/2/1 Type: Wireless Charger Input: 5V/2A Brand Name: BASEUS Material: Aluminum Alloy+PC+Silicone+PU Output Power: 2.5W Max Size: 80*34*10cm Compatible: for iPhone watch 4/3/2/1