For many of the models listed, the way you connect to a compatible device such as Alexa requires a Wi-Fi bridge. Keep in mind that not all models are compatible with smart home technology and that many of the keypad models are not able to be voice-controlled.

The August models seem to be the most readily linkable devices for connecting with Alexa and Google Home, etc.

So in short, unless you go with the August Smart Lock Pro + Connect, you will likely need a third-party device or extra piece to permit voice control.

Once upon a technological time, this may have been a debate. However, with the advancements in tech in recent years many things, such as touchscreen keypads, are much more reliable than they once were.

The thing with physical button keypads is that they can stick with poor weather and dirt build-up or malfunction as buttons entirely. The touchscreen keypads bypass these issues with their lack of crevices and creases to jam buttons.

Whether or not you choose to purchase a model with traditional key use is entirely a personal choice. However, for those who rent properties and do not wish to constantly provide guests/customers with physical keys, a keyless pad without traditional key use might be ideal.

The models with traditional keyholes are susceptible to picking, whereas models without them cannot be picked without a passcode (or by being hacked, which is much more difficult than picking a lock).

Finally, the models that connect to your smartphone almost make keys obsolete, and so it really comes down to whether or not you wish to have physical keys.