Amazon has the new August Smart Lock Pro (3rd Generation) for just $199 right now. That is good for $30 off of the regular price, and brings this back down to its all-time low pricing. This is a great price for the Smart Lock Pro, especially since it does come with the Bridge that allows it to work with Amazon Alexa and Google Assistant.
The August Smart Lock Pro allows you to turn your existing lock into a smart lock, without needing to swap out the keys. This is actually a pretty big deal, seeing as most smart locks do force you to get new physical keys. This smart lock will connect to your phone over Bluetooth, so you do need to be in range for it to unlock automatically, with August alerts. Which can be very helpful if you are coming home with a ton of groceries, you don't need to fumble around with your keys. Additionally, the August Smart Lock Pro does also allow you to remotely unlock the door - perhaps to let your kids in after school - and you can also give people a temporary key. So if you have someone watching your home while you are away, you can give them a key while you're gone and not worry about getting it back once you get home.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $119/year (or $59/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.