Yes. The Smart LED line of bulbs do require a hub.
The Sengled Smart Hub is compatible with all of the bulbs and accessories from the Smart LED line.
The SmartThings hubs and Echo Plus hubs are, as a general rule, compatible with almost all Sengled Smart LED bulbs and accessories.
The Wink hub is compatible with the Smart LED bulbs in Soft White or Daylight (A19 and BR30 sizes) and the Tuneable White Smart LED bulbs.