Best Smart Locks · head-to-head
August Wi-Fi Smart Lock (4th Gen) vs Yale Assure Lock 2
A sourced, side-by-side spec comparison. August Wi-Fi Smart Lock (4th Gen) is cheaper at $199.99. Every spec and price links to its source.
Side by side
| August Wi-Fi Smart Lock (4th Gen) | Yale Assure Lock 2 | |
|---|---|---|
| US price | $199.99 (MSRP $199.99 confirmed on august.com product page.) | $239.99 (Wi-Fi model starting price approximately $239.99–$290 per Digital Trends review (Bluetooth-only model ~$160, Wi-Fi model ~$240). priceUsd uses the Wi-Fi model as the reference config since it is the mainstream purchase. Manufacturer yalehome.com was unreachable (HTTP 404) throughout the session.) |
| Brand | August | Yale |
| Released | 2021 | 2022 |
| unlock methods | smartphone app, Apple Watch, voice assistant (Alexa/Google/Siri), auto-unlock, physical key (existing deadbolt retained) | touchscreen keypad, smartphone app, Apple Home Key (NFC tap on iPhone/Apple Watch), physical key (on keyed models), voice assistant (Alexa/Google) |
| connectivity | Wi-Fi 802.11 b/g/n 2.4GHz/5GHz built-in, Bluetooth LE | Wi-Fi built-in (premium SKU), Bluetooth, Z-Wave Plus module (optional, $80 add-on) |
| matter | false | false |
| auto lock | true | true |
| battery type | 2× CR123 | 4× AA (9V terminal for emergency backup) |
| finish options | Silver, Matte Black | Matte Black, Satin Nickel, Bronze |
| install type | Retrofit interior — mounts over existing single-cylinder deadbolt, no drilling | Replaces existing deadbolt — single-bore door |
| release | 2021 | 2022 |
Sources — August Wi-Fi Smart Lock (4th Gen): august.com (verified 2026-06-15). Yale Assure Lock 2: digitaltrends.com (verified 2026-06-15).