Platform and hub
Check whether the bulb uses Matter, a brand app, or a dedicated hub. Confirm the exact support for Apple Home, Alexa, Google Home, or SmartThings.
Check which platforms each smart bulb supports, how it connects, and what its source says about brightness and color.
Compare Linkind and Govee A19 smart bulbs by listed brightness, platform support, connection, bulb base, and switch compatibility.