The Choetech USB-C Dual 5W Wireless Charging Pad combines two 5W wireless chargers in one unit, powered by a single USB-C port. It measures 220x90x14mm, weighs 150g, and has anti-slip silicone on both surfaces.
The Choetech Circle Qi Wireless Charger retails for US$19.99 on Amazon. It charges Qi-enabled devices, or any phone with a Qi-compatible cover, outputting 5V/1A. About the size of a coffee coaster at 84mm wide, it's finished in metallic silver.
I won the Nokia Wireless Charging Stand (DT-910), worth S$128, from TheGeekyBeng's Great Nokia Giveaways. It's my second Qi charger, after the Anker Ultra-Slim Qi pad. Both happily charge my Lumia 930 and Nexus 5 even with their cases on.
Wanting to try Qi wireless charging, I bought the Anker Ultra-Slim Qi-Enabled Wireless Charging Pad from Amazon for US$25.99. Since Anker, not Amazon, sells it and doesn't ship to Singapore directly, I paid an extra US$5.22 to my HopShopGo forwarder.