Best Smart Lock That Goes over Deadbolt in 2025
Updated on July 2025
#1
Recommended
16% Off
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- Remote locking and unlocking via built-in WiFi with customizable guest access codes through the Schlage Home or Key by Amazon app.
- Voice control support for Alexa and Google Assistant.
- Manage up to 100 access codes with a fingerprint-resistant touchscreen and easy one-touch locking.
- Integrated alarm technology detects potential security breaches.
- Straightforward installation with Snap ‘n Stay technology for hands-free setup using just a screwdriver.
- Fits standard doors with specified thickness and backset dimensions.
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- Remote locking and unlocking via built-in WiFi with customizable guest access codes through the Schlage Home or Key by Amazon app.
- Voice control support for Alexa and Google Assistant.
- Manage up to 100 access codes with a fingerprint-resistant touchscreen and easy one-touch locking.
- Integrated alarm technology detects potential security breaches.
- Straightforward installation with Snap ‘n Stay technology for hands-free setup using just a screwdriver.
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#2
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- Unlock and lock remotely via built-in WiFi, with no extra accessories needed. Manage up to 100 access codes through the Schlage Home or Key by Amazon app for trusted individuals.
- Compatible with Alexa for checking lock status and remote operations, with notifications for low battery and smart reorders through Amazon Dash Replenishment.
- Features a fingerprint-resistant touchscreen for easy locking; optional voice control for hands-free operation with compatible devices.
- Equipped with alarm technology to detect security breaches and a low battery indicator for timely replacements.
- Simple installation with just a screwdriver; Snap ‘n Stay technology allows for one-handed installation.
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- Unlock and lock remotely via built-in WiFi, with no extra accessories needed. Manage up to 100 access codes through the Schlage Home or Key by Amazon app for trusted individuals.
- Compatible with Alexa for checking lock status and remote operations, with notifications for low battery and smart reorders through Amazon Dash Replenishment.
- Features a fingerprint-resistant touchscreen for easy locking; optional voice control for hands-free operation with compatible devices.
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#3
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- 8-month battery life powered by 8 AA batteries, offering long-lasting performance that may vary based on usage.
- Self-learning AI enhances fingerprint recognition with each use, allowing for quick unlocking in under 1.5 seconds through a single touch. Additional unlocking options include the eufy Security app, keypad, physical key, Apple Watch, and voice assistants like Alexa and Google.
- Built-in Wi-Fi enables remote access and control through the eufy Security app without needing additional bridges, allowing for easy access management and real-time notifications.
- Simple installation compatible with standard US and CA deadbolts, taking approximately 15 minutes without the need for drilling, along with 24/7 customer support available via multiple channels.
- Alert system for unauthorized access attempts, operational in extreme temperatures from -22°F to 158°F, and features an IP53 waterproof rating.
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- 8-month battery life powered by 8 AA batteries, offering long-lasting performance that may vary based on usage.
- Self-learning AI enhances fingerprint recognition with each use, allowing for quick unlocking in under 1.5 seconds through a single touch. Additional unlocking options include the eufy Security app, keypad, physical key, Apple Watch, and voice assistants like Alexa and Google.
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#4
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- Versatile unlocking options including fingerprint, Bluetooth app, passcodes, key fobs, mechanical keys, and Alexa voice control (WiFi gateway required).
- Easy 10-minute installation on most standard wooden doors, compatible with left and right-handed configurations.
- Mobile app allows for access management, including granting temporary codes and tracking unlock history remotely.
- Designed for landlords and property managers to efficiently manage multiple properties through a single app.
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- Versatile unlocking options including fingerprint, Bluetooth app, passcodes, key fobs, mechanical keys, and Alexa voice control (WiFi gateway required).
- Easy 10-minute installation on most standard wooden doors, compatible with left and right-handed configurations.
- Mobile app allows for access management, including granting temporary codes and tracking unlock history remotely.
- Designed for landlords and property managers to efficiently manage multiple properties through a single app.
#5
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- Bluetooth pairing for control via the TTLock App within 2 meters; upgrade with G2 Gateway for remote access. Generate temporary access codes for guests.
- Operates on 4 AA batteries for approximately 12 months; features a low-battery indicator and USB Type-C emergency backup.
- Offers multiple unlocking methods: fingerprint recognition (under 0.3s), PIN codes, physical keys, app control, eKey, fobs, and compatibility with Alexa/Google Assistant. AI-enhanced fingerprint technology for improved speed and accuracy.
- Quick installation with just a screwdriver; includes adhesive interior back cover for easy setup. Backed by a 12-month warranty and lifetime customer support available via phone or email.
- Features IP54 waterproof rating, auto-lock function, privacy mode, anti-peeping code protection, and durable lock cylinder. Suitable for extreme temperatures from -22℉ to 158℉.
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- Bluetooth pairing for control via the TTLock App within 2 meters; upgrade with G2 Gateway for remote access. Generate temporary access codes for guests.
- Operates on 4 AA batteries for approximately 12 months; features a low-battery indicator and USB Type-C emergency backup.
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#6
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- Control your smart lock remotely without a bridge using built-in Wi-Fi and the eufy Security app for seamless access management and notifications.
- Unlock your door with a physical key, voice commands via Alexa/Google Assistant, or a durable physical button designed for reliability. The auto-lock feature secures your home based on your preferences.
- Installs easily in 15 minutes with no drilling required, compatible with most standard deadbolts. Customer support is available 24/7, with an 18-month protection plan included.
- Integrate the smart lock with a eufy doorbell for cohesive control and keyless entry through the eufy Security app, enhancing your smart home experience.
- Reliable battery-powered operation lasts up to 5 months, with a low battery indicator; designed to work efficiently in extreme temperatures and features IPX3 waterproofing. It includes wrong-try protection to prevent unauthorized access.
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- Control your smart lock remotely without a bridge using built-in Wi-Fi and the eufy Security app for seamless access management and notifications.
- Unlock your door with a physical key, voice commands via Alexa/Google Assistant, or a durable physical button designed for reliability. The auto-lock feature secures your home based on your preferences.
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#7
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- Enhances existing deadbolt by fitting inside the door, ensuring added security and convenience while retaining key access as a backup.
- Allows sharing of access via the August app, eliminating the need for physical keys.
- Simple installation over most single cylinder deadbolts in about 10 minutes, suitable for non-handy users.
- Features Auto-Unlock and Auto-Lock for seamless home security upon closing the door or after a specified time.
- Integrates easily with smart home systems and voice assistants like Alexa and Google Assistant due to built-in Wi-Fi.
- Option to enhance functionality with a Smart Keypad for code-based entry.
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- Enhances existing deadbolt by fitting inside the door, ensuring added security and convenience while retaining key access as a backup.
- Allows sharing of access via the August app, eliminating the need for physical keys.
- Simple installation over most single cylinder deadbolts in about 10 minutes, suitable for non-handy users.
- Features Auto-Unlock and Auto-Lock for seamless home security upon closing the door or after a specified time.
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#8
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- Smart door lock integrated with Apple Home, allowing unlocking via Apple home keys from iPhone or Apple Watch, even when devices are powerless.
- Offers multiple unlocking options, including a fingerprint reader for up to 50 fingerprints, configurable passwords through the Aqara Home app, temporary passwords for guests, and a mechanical key for emergencies.
- Compatible with Aqara Zigbee 3.0 hub to integrate with third-party systems like Google Home, Alexa, and IFTTT, enabling smart home automations such as doorbell interactions.
- Features auto-lock functionality that secures the door after closing, with an option to disable; also includes a Do Not Disturb mode to silence lock sounds during specified times.
- Durable lock powered by 4 AA batteries with up to 8 months of life, featuring an emergency USB-C charging port and a robust zinc alloy construction with IP65 rating, withstands extreme temperatures while ensuring data security through AES encryption.
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- Smart door lock integrated with Apple Home, allowing unlocking via Apple home keys from iPhone or Apple Watch, even when devices are powerless.
- Offers multiple unlocking options, including a fingerprint reader for up to 50 fingerprints, configurable passwords through the Aqara Home app, temporary passwords for guests, and a mechanical key for emergencies.
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#9
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- Integrates seamlessly with all Matter-enabled ecosystems like Apple Home, Google Home, Amazon Alexa, and SmartThings
- Offers advanced encryption and a tamper-proof design for enhanced security, along with real-time notifications for door activity
- Supports multiple unlocking methods: fingerprint, smartphone, keypad, and physical key
- Features auto-lock and unlock functionality, with alerts and remote access sharing to enhance convenience
- Constructed from durable zinc alloy and designed to withstand various weather conditions
- Easy installation with straightforward instructions, requiring no drilling
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- Integrates seamlessly with all Matter-enabled ecosystems like Apple Home, Google Home, Amazon Alexa, and SmartThings
- Offers advanced encryption and a tamper-proof design for enhanced security, along with real-time notifications for door activity
- Supports multiple unlocking methods: fingerprint, smartphone, keypad, and physical key
- Features auto-lock and unlock functionality, with alerts and remote access sharing to enhance convenience
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#10
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- Simple installation with no drilling required; fits standard American wood doors.
- Rapid fingerprint unlocking in 0.3 seconds with a high recognition rate.
- Supports up to 20 fingerprints and custom codes; includes guest one-time codes for security flexibility.
- Multiple locking options: automatic locking, manual touch lock, mechanical key lock, or instant internal knob lock.
- Includes a 30-day money-back guarantee and a 2-year warranty for peace of mind.
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- Simple installation with no drilling required; fits standard American wood doors.
- Rapid fingerprint unlocking in 0.3 seconds with a high recognition rate.
- Supports up to 20 fingerprints and custom codes; includes guest one-time codes for security flexibility.
- Multiple locking options: automatic locking, manual touch lock, mechanical key lock, or instant internal knob lock.
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