Blink Video Doorbell without Sync Module:
Limited Live View:Live view is only available for a short period after a trigger (doorbell press or motion detection).
No Local Storage:You cannot store video clips locally without a Sync Module.
Two-Way Audio:You can still use two-way audio, but it's limited to the period of the trigger.
Shorter Battery Life:Battery life will be shorter without the power efficiency benefits of the Sync Module.
Standalone Functionality:The doorbell functions as a standalone device without the integration benefits of the Sync Module.
Blink Video Doorbell with Sync Module:
Local Storage: Video clips can be stored on a USB drive connected to the Sync Module, eliminating the need for a subscription.
Live View: You can view live video at any time on demand.
Two-Way Audio: You can communicate with visitors at the door.
Extended Battery Life: The Sync Module can significantly extend the battery life of the doorbell.
System Integration: You can integrate the doorbell with other Blink devices managed by the Sync Module.