Here is another smart doorbell that lets you see, hear, and speak to your visitors from your mobile device, tablet, or PC. The LTS Video Doorbell has a HD camera with 180-degree viewing angle. It supports Micro SD cards up to 128 GB.
LTS works with network video recorders to make your home even smarter. This doorbell camera has 4 faceplate color options. Costs under $200 at this time. More info is available here.