Which August Smart Lock is the best smart lock?
(Android Central)

Built-in Wi-Fi is just the beginning August Wi-Fi Smart Lock (4th-gen) From $196 at Amazon Pros Wi-Fi built-in (no external bridge required) Nearly 50% smaller Improved grip Installs in 10 minutes or less Don`t need to completely remove existing deadbolt (renter-friendly) Cons Shorter battery life Uncommon CR123 batteries August`s 4th-generation smart lock, the August Wi-Fi Smart Lock, eliminates the bulk from previous generations and builds Wi-Fi support right into the lock. Still great for pros August Smart Lock Pro (3rd-gen) $128 at Amazon Pros Longer battery life AA batteries Installs in 10 minutes or less Don`t need to completely remove existing deadbolt (renter-friendly) Can work offline with Z-Wave hubs like SmartThings Cons Requires external bridge for Wi-Fi connectivity Larger The 3rd-generation August Smart Lock Pro requires an external August Connect bridge to connect to your home`s Wi-Fi network, and it`s quite a bit larger than the August...