Use your mobile phone as a key! Also supports a normal key or a Kevo bluetooth fob (I believe the lock comes with one but additional are also available at DSE for $23.57). You can also issue unlimited guest keys that you can set to expire.
I believe it's a special price for the one-day sale but I could be wrong. Cheapest I've seen it ANYWHERE. I've had it on my Amazon wishlist for a while and according to Camelx3, it's never been less than US$180 excl. delivery. In Australia, Masters has the next best price at $279, as far as I can tell.
THE BLURB: With Kevo, your Smartphone is now your key. No more fumbling for your keys. Keep your phone in your pocket or purse and just touch the lock to open. No Smartphone? No Problem. Enjoy the same touch to open convenience with the fob. NEW! Kevo now works with Nest thermostats to let it know when you come and go to set your personal temperature preference, saving energy and reducing your utility bill.
Kevo Compatibility: The Kevo app is currently available for iPhone 4s, 5, 5C, 5S, 6 and 6 Plus, 3rd generation or higher iPad/iPad mini and 5th generation iPod touch along with select Android 5.0 devices Nexus 6, Nexus 9 and Samsung Galaxy S5.
The Good: The Kwikset Kevo packs a lot of subtle smarts into a little device. The indoor/outdoor sensor worked flawlessly, never once letting us in when it shouldn't have.
The Bad: The SmartKey deadbolt at the heart of the Kevo is too easy to break for a lock that costs $219. Also, phones that aren't equipped with Bluetooth 4.0 won't be able to interact with the Kevo.