(Read our blog post “ How to Keep Unwanted Eyes From Spying on Your Security Cameras” for a list of potential problems and solutions involving cloud storage of video.) If the power goes down while you’re on vacation, for example, you won’t be able to access prior local recordings, which is something you can do with video uploaded to the cloud. The trade-offs: You can access recordings only through the app (only a live view is possible on the web browser), and you need to keep the doorbell connected to both electrical power and your home’s Wi-Fi. Having the storage embedded is more secure than using a removable SD card, which is easily swiped. Eufy employs the same type of encryption the US government does (AES 256, to be specific), and only the user and invited guests can access live video and recordings-Eufy claims the system is so secure that even the company doesn’t have access to your recordings. The 4 GB of built-in memory is enough to store up to 30 days’ worth of recordings (based on 30 videos a day, each 30 seconds long your mileage may vary, but we think it’s a decent amount of storage).
The Eufy Security Video Doorbell 2K offers the option of local storage, or you can pay for Eufy Cloud, which provides 30 days of video storage for $3 per month per camera (or $30 per year).
High-resolution video: All of the models we tested have at least 1080p resolution, but some include a higher resolution to capture the most important details and to recognize faces.However, you need to charge that battery as often as once every several weeks, depending on how many people are coming and going, as well as the number of recordings and alerts the doorbell is sending.
Of course, if you aren’t interested in expanding beyond your front door, who and what your doorbell is compatible with is a nonissue. For example, some models allow you to use smart video displays such as Amazon’s Echo Show to view doorbell feeds, or to use a smart speaker like the Google Home as an intercom.