In fact, Aqara integrates hub functions into many non hub products to facilitate users’ flexible selection of their favorite Aqara products. For example, some hubs are integrated into cameras, while others are integrated into 86 × 86 wall sockets. Usually, one to two hubs are sufficient for a household. When you already have a suitable Aqara hub, there is no need to add new one. However, for G410, I still strongly recommend you to purchase it instead of G4. It has undergone hardware upgrades in many doorbell functions. G410 comes with a dual protocol hub (Zigbee/Thread), which can be combined with Aqara’s door locks and controllers (such as Dual Relay Module T2) to form a simple linkage-kit, here is a case study to illustrate:
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