There are two variants of the Nomad Base Station. Hub Edition and Apple Watch Edition.
The difference between the Hub Edition and the Apple Watch Edition is the former includes a 7.5W USB-A port and an 18W USB-C PD port to charge an additional two devices, while the later, only consists of an Apple Watch charger.
Funxim X8 is a 10W Qi wireless charging pad that allows your iPhone or Android phone together with your Apple Watch.
Funxim X8 started out on Kickstarter on November 2017 where it raised a total of US$448,097 out of their initial goal of US$10,000 from 10,983 backers. They started shipping to their backers from January 2018.
Belkin Boost Up Bold is a 10W Qi wireless charging pad. It charges your device at 5W, 7.5W, 9W, or 10W. For iPhones, it will be at 7.5W (including the newer iPhone XS and iPhone XS Max). For newer Android phones that support wireless charging, it will be at 10W.
The original retail price was US$25.99 (S$35), but they have an exclusive discount with Kinja Deals using the coupon code KINJA593. That coupon code gives you US$6.50 discount, making the final price to be US$19.49.
The Choetech Circle Qi Wireless Charger is retailing for US$19.99 (S$29) on Amazon. As the product name suggests, it charges Qi-enabled device or device equipped with a Qi-compatible cover. It takes in 5V/2A and output 5V/1A.
The wireless charger weighs 64g and measures approximately the size of a coffee cup coaster (84mm x 84mm x 18mm). It is metallic silver in color.