# August Wi-Fi Smart Lock (4th Gen) vs Aqara Smart Lock U100: specs and price compared

A sourced, side-by-side comparison of the August Wi-Fi Smart Lock (4th Gen) (August) and Aqara Smart Lock U100 (Aqara) among smart locks. Aqara Smart Lock U100 is the cheaper of the two at $169.99.

## Side by side

| Spec | August Wi-Fi Smart Lock (4th Gen) | Aqara Smart Lock U100 |
| --- | --- | --- |
| US price | $199.99 | $169.99 |
| Brand | August | Aqara |
| Released | 2021 | 2022 |
| Unlock methods | smartphone app, Apple Watch, voice assistant (Alexa/Google/Siri), auto-unlock, physical key (existing deadbolt retained) | fingerprint (98.6% accuracy, <0.5s recognition, 50 prints), keypad PIN (permanent/periodic/one-time), Apple Home Key (NFC tap on iPhone/Apple Watch), NFC tag (2 included), smartphone app, physical key backup |
| Connectivity | Wi-Fi 802.11 b/g/n 2.4GHz/5GHz built-in, Bluetooth LE | Zigbee (requires Aqara hub for remote features); Bluetooth for direct app setup |
| Matter | No | Yes |
| Auto lock | Yes | Yes |
| Battery type | 2× CR123 | 4× AA |
| Finish options | Silver, Matte Black | Shadow Gray, Silver |
| Install type | Retrofit interior — mounts over existing single-cylinder deadbolt, no drilling | Replaces existing deadbolt — single-bore door, DIY no-drill for most doors |

## 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 Aqara Smart Lock U100 fingerprint (98.6% accuracy, <0.5s recognition, 50 prints), keypad PIN (permanent/periodic/one-time), Apple Home Key (NFC tap on iPhone/Apple Watch), NFC tag (2 included), smartphone app, physical key backup
- Connectivity: August Wi-Fi Smart Lock (4th Gen) Wi-Fi 802.11 b/g/n 2.4GHz/5GHz built-in, Bluetooth LE vs Aqara Smart Lock U100 Zigbee (requires Aqara hub for remote features); Bluetooth for direct app setup
- Matter: August Wi-Fi Smart Lock (4th Gen) No vs Aqara Smart Lock U100 Yes
- Battery type: August Wi-Fi Smart Lock (4th Gen) 2× CR123 vs Aqara Smart Lock U100 4× AA
- Finish options: August Wi-Fi Smart Lock (4th Gen) Silver, Matte Black vs Aqara Smart Lock U100 Shadow Gray, Silver
- Install type: August Wi-Fi Smart Lock (4th Gen) Retrofit interior — mounts over existing single-cylinder deadbolt, no drilling vs Aqara Smart Lock U100 Replaces existing deadbolt — single-bore door, DIY no-drill for most doors

## 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.)

## Sources

- August Wi-Fi Smart Lock (4th Gen): https://august.com/products/august-wifi-smart-lock (august.com, verified 2026-06-15)
- Aqara Smart Lock U100: https://www.aqara.com/en/product/smart-lock-u100 (aqara.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/smart-locks/august-wifi-smart-lock-4th-gen-vs-aqara-smart-lock-u100/
Cite: Per The Front Desk Review, August Wi-Fi Smart Lock (4th Gen) ($199.99) vs Aqara Smart Lock U100 ($169.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-locks/august-wifi-smart-lock-4th-gen-vs-aqara-smart-lock-u100/
License: CC BY 4.0.