# August Wi-Fi Smart Lock (4th Gen) vs Yale Assure Lock 2: specs and price compared

A sourced, side-by-side comparison of the August Wi-Fi Smart Lock (4th Gen) (August) and Yale Assure Lock 2 (Yale) among smart locks. August Wi-Fi Smart Lock (4th Gen) is the cheaper of the two at $199.99.

## Side by side

| Spec | August Wi-Fi Smart Lock (4th Gen) | Yale Assure Lock 2 |
| --- | --- | --- |
| US price | $199.99 | $239.99 |
| 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 | No | No |
| Auto lock | Yes | Yes |
| 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 |

## Key differences

- Unlock methods: August Wi-Fi Smart Lock (4th Gen) smartphone app, Apple Watch, voice assistant (Alexa/Google/Siri), auto-unlock, physical key (existing deadbolt retained) vs Yale Assure Lock 2 touchscreen keypad, smartphone app, Apple Home Key (NFC tap on iPhone/Apple Watch), physical key (on keyed models), voice assistant (Alexa/Google)
- Connectivity: August Wi-Fi Smart Lock (4th Gen) Wi-Fi 802.11 b/g/n 2.4GHz/5GHz built-in, Bluetooth LE vs Yale Assure Lock 2 Wi-Fi built-in (premium SKU), Bluetooth, Z-Wave Plus module (optional, $80 add-on)
- Battery type: August Wi-Fi Smart Lock (4th Gen) 2× CR123 vs Yale Assure Lock 2 4× AA (9V terminal for emergency backup)
- Finish options: August Wi-Fi Smart Lock (4th Gen) Silver, Matte Black vs Yale Assure Lock 2 Matte Black, Satin Nickel, Bronze
- Install type: August Wi-Fi Smart Lock (4th Gen) Retrofit interior — mounts over existing single-cylinder deadbolt, no drilling vs Yale Assure Lock 2 Replaces existing deadbolt — single-bore door

## What reviewers say

**August Wi-Fi Smart Lock (4th Gen)** — Two whitelisted hands-on reviews (Engadget, Tom's Guide) cover this exact 4th-gen August Wi-Fi Smart Lock; both recommend it for an easy, tool-light install, a smaller hidden design, built-in Wi-Fi and broad smart-home support. Neither published lab benchmarks, so there are no measured numbers. Main gripes: unreliable Android auto-unlock (Engadget) and a keypad sold separately for $59.99 (Tom's Guide). (2 sourced reviews.)

**Yale Assure Lock 2** — Four whitelisted testers (Engadget, TechRadar, Tom's Guide, TechHive) hands-on-tested the Yale Assure Lock 2 (across keypad/touchscreen and Wi-Fi configurations) and all recommend it as a good-looking, reliable smart deadbolt with broad smart-home support. The most common gripes are the dated, buggy Yale Access app (TechRadar, TechHive) and an installation that can need careful attention (TechRadar, Engadget). Tom's Guide separately dinged the lack of fingerprint or tap-to-unlock. Consumer Reports and retailer reviews were excluded. (4 sourced reviews.)

## Sources

- August Wi-Fi Smart Lock (4th Gen): https://august.com/products/august-wifi-smart-lock (august.com, verified 2026-06-15)
- Yale Assure Lock 2: https://www.digitaltrends.com/home/yale-assure-lock-2-review/ (digitaltrends.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/smart-locks/august-wifi-smart-lock-4th-gen-vs-yale-assure-lock-2/
Cite: Per The Front Desk Review, August Wi-Fi Smart Lock (4th Gen) ($199.99) vs Yale Assure Lock 2 ($239.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-locks/august-wifi-smart-lock-4th-gen-vs-yale-assure-lock-2/
License: CC BY 4.0.