Ikea's Tradfri line is a good and inexpensive gateway to Apple's HomeKit system | AppleInsider
IKEAのスマートプラグが日本で販売開始 HomeKitにも対応! - AppleFan Times
Ikea's Tradfri smart bulbs to support Alexa, Google and Apple HomeKit this summer - CNET
Smart Plug WiFi Outlet Work with Apple HomeKit, Siri, Alexa, Google Home, Refoss Smart Socket with Timer Function, Remote Control, No Hub Required, 15A, 2 Pack - - Amazon.com