# What are the best smart locks from well-known brands? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the best smart locks from well-known brands?

## Products

### Defiant Defiant Deadbolt
```yaml
product: defiant-defiant-deadbolt
brand: Defiant
price_gbp: 59.3
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
connectivity: WiFi
wifi_compatibility: 2.4 GHz
lock_operation_methods: Keypad, smartphone app, physical key
smartphone_app_availability: Hubspace app
voice_assistant_compatibility: Amazon Alexa, Google Home
```

- **Price:** £59.3 [^1]
- **Summary:** The Defiant Deadbolt is an affordable electronic deadbolt with keypad entry, physical-key access, WiFi control through the Hubspace app, and voice control through Amazon Alexa and Google Home. It suits budget-conscious homeowners and DIY users who want remote access and smart-home integration without a separate hub.
- **Ideal For:** It suits shoppers seeking smart locks from well-known brands because it combines Defiant branding with 2.4 GHz WiFi, Hubspace app control, keypad and key access, and Amazon Alexa and Google Home compatibility.

### TCL D1 Pro Palm Vein Smart Lock
```yaml
product: tcl-d1-pro-palm-vein-smart-lock
brand: TCL
price_gbp: 96.4
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
connectivity: Wi-Fi
wifi_compatibility: Built-in Wi-Fi
lock_operation_methods: Palm vein, smartphone app, voice, key fob, keypad, physical key
smartphone_app_availability: Smart Life app
voice_assistant_compatibility: Amazon Alexa, Google Assistant
```

- **Price:** £96.4 [^2]
- **Summary:** The TCL D1 Pro uses palm vein recognition, keypad entry, smartphone control, voice commands, key fobs, and physical keys. Its rechargeable 7800mAh battery lasts up to 9 months, and built-in Wi-Fi enables remote access and notifications, making it suited to households wanting versatile keyless entry and smart-home control.
- **Ideal For:** It suits shoppers seeking smart locks from well-known brands because TCL combines a distinctive palm vein scanner with built-in Wi-Fi, remote app access, a rechargeable 7800mAh battery, and Alexa and Google Assistant compatibility.

---
## References & Sources
[^1]: The Home Depot, accessed 2026-09-04. https://www.homedepot.com/p/Defiant-Square-Compact-Matte-Black-Electronic-Single-Cylinder-Deadbolt-HSGCXX901ALPB/330353477
[^2]: TCL Home Security, accessed 2026-09-04. https://tclhomesecurity.com/products/tcl-d1-pro-palm-vein-digital-smart-door-lock-with-keypad