The longer warranty with Vivint could give you more peace of mind, as does the possibility of paying month to month rather than signing up for a multi year contract with Xfinity. On the other hand, you could save some money with Xfinity thanks to their first year promotional rate, plus the opportunity to bundle if you go through Xfinity for TV or internet. Like many other big cable corporations, Comcast broached home security in order to offer customers another broadband dependent service that could be easily bundled with TV and internet. The Comcast telecom empire entered the home security space in 2011. When they followed up with entering the home automation space in 2013, they did so without initially trying to integrate the two home tech categories. This provides an interesting insight into the home automation focus of Xfinity Home Security — its impressive home automation abilities outpace the plain and simple security options that the service leads with. Xfinity’s basic home security plan — Xfinity Home Secure — costs $40 per month. There are frequently specials going on that reduce your first year’s rate to $30 per month or as low as $25. Whatever deal you get for the first 12 months, remember that your rate will increase during year two, and you’ll be around to pay it — or you’ll pay a pretty penny to break your contract. If you bundle home security with internet, you’re looking at an intro rate of $70 per month. Internet, TV, and security?An intro rate of $110.