A solid smart home security door lock and video keypad bundle is meant to keep your front door secure and last you for years, so you want to buy it once and do it right. Look for solid metal build quality, reliable weather resistance, and local backup power options so you are never locked out when the internet drops.
Early summer home automation sales are the sweet spot for picking these up, right as brands roll out minor hardware refreshes. That means you can often grab last year's model at a steep discount while keeping nearly identical software features and app support.
That 0% window is a hard deadline, not free money, and any remaining balance left over when the 18 months are up will get hit with standard interest charges.