Here is another smart video doorbell that lets you see who is at your door. The Guker Video Doorbell comes with WiFi, 2-way audio, night vision, and battery. It supports memory cards up to 32 GB. Up to 4 users are supported, so you can share access with your family.
The device has a motion sensor and 2 infrared LED lights. Its battery lasts up to 9 months when PIR is off.