Yes, a Ring Doorbell can be used without a subscription. The device will still function as a traditional doorbell, allowing users to receive real-time notifications when someone is at their door. Users can also use the two-way talk feature and watch live video feeds of their front porch. However, without a subscription plan, the video recording features are limited. For instance, users will not have access to video storage or the ability to review recorded footage. They will only be able to view live feeds. A subscription does provide additional benefits, such as saving recordings for a specified duration and accessing advanced features. For specific details about subscription options and what is included, it may be helpful to look on their current website for more information.