Watch I s tested and found to work as intended:

Still in plastic

No box

direct usb plug in does not require a cord: band slides off /end of Watch plugs directly into usb port to charge (make sure it’s the side with gold metal strips or you’ll possibly damage the Watch

Free Koretrak app download required to connect these to phone; we Recommend a universal smartwatch app that can most likely be used for all devices (even diff brands)