Which smart door lock offers the best battery life?
| Product ⇅ | Price ⇅ | Lock Type ⇅ | Connectivity ⇅ | Bluetooth Range (m) ⇅ | Battery Life (months) ⇅ | Smart Home Compatibility ⇅ | Auto Unlock ⇅ | Keypad ⇅ |
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Danalock Danalock V3 Smart Lock
US
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— | Motorized retrofit deadbolt | Bluetooth 4.2, Z-Wave Plus, Zigbee, (Wi‑Fi via Danabridge accessory) | — | 18 | Apple HomeKit, Amazon Alexa (via integrations), IFTTT, Z-Wave and Zigbee hubs | ✓ | ✓ |
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The Danalock V3 is a motorized retrofit smart lock that fits standard deadbolts and supports Bluetooth, Z-Wave Plus, Zigbee and Wi‑Fi with an optional bridge. It offers Auto Unlock, battery operation with about 1.5 years typical life, and optional keypad and bridge accessories for wider smart home integration; suited for users wanting a versatile retrofit lock that works with multiple smart-home ecosystems.
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ULTRALOQ ULTRALOQ U-Bolt Pro (UL3 BT)
US
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£134.49 ≈ | Deadbolt | Bluetooth, optional Wi-Fi (2.4GHz) or Z-Wave | — | — | Alexa, Google Assistant, IFTTT, SmartThings | ✓ | ✓ |
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The ULTRALOQ U-Bolt Pro (UL3 BT) is a keypad deadbolt with fingerprint and multiple smart unlock methods, supporting Bluetooth plus optional Wi‑Fi or Z-Wave for remote control. It suits users who want versatile access (fingerprint, code, app, key) and smart home integrations.
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Schlage Schlage Encode Plus BE489ZP
US
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£216.21 ≈ | Smart deadbolt | Wi‑Fi, Bluetooth | — | 6 | Apple HomeKit, Amazon Alexa, Google Assistant | — | ✓ |
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Schlage Encode Plus is a built‑in Wi‑Fi smart deadbolt with a touchscreen keypad and Bluetooth. It supports Apple Home Key and major voice assistants, suited for Apple users who want mobile tap‑to‑unlock plus keypad access for non‑Apple guests.
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August Home August Smart Lock Wi-Fi 4th Gen (ASL-04)
US
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£97.13 ≈ | Electronic deadbolt retrofit (fits over existing single-cylinder deadbolt) | Wi‑Fi, Bluetooth | — | 3 | Works with Alexa, Google Assistant, Siri (Apple HomeKit) | ✓ | ✓ |
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Built-in Wi‑Fi smart lock that retrofits over an existing single‑cylinder deadbolt to provide remote lock/unlock, auto‑lock/unlock, DoorSense, and guest access via the August app. Suited for homeowners or renters who want easy installation without replacing their deadbolt and native voice‑assistant support.
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Eufy Security Eufy Security Smart Lock Touch & Wi-Fi (T8126)
US
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£186.79 ≈ | Deadbolt | Bluetooth and WiFi (2.4 GHz) | 70 | 6 | Amazon Alexa, Google Assistant | — | ✓ |
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The Eufy Smart Lock Touch & Wi‑Fi is a fingerprint-enabled Wi‑Fi deadbolt with built-in Bluetooth and 2.4 GHz Wi‑Fi for remote control, a rechargeable battery, and a touchscreen keypad. It suits users who want multiple entry methods (fingerprint, code, app, key) and integration with Alexa or Google Assistant.
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Kwikset Kwikset Aura Smart Lock (99130)
US
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£93.11 ≈ | Electronic deadbolt | Bluetooth | — | — | None (Bluetooth only) | ✗ | ✓ |
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Aura is a Bluetooth electronic deadbolt with a 10-digit keypad, SmartKey rekeying, and app control within Bluetooth range. It suits users who want keypad and phone control without Wi‑Fi integration, ideal for rentals or local-only smart lock use.
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Yale Yale Assure Lock 2 (YDL-PA)
US
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£119.54 ≈ | Smart deadbolt | Bluetooth; optional Wi‑Fi or Z‑Wave via modules | — | 6 | Apple Home (HomeKit), Alexa, Google Assistant; Matter/Z-Wave via modules | ✓ | ✓ |
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The Yale Assure Lock 2 is a smart deadbolt available in keyed or key-free and touchscreen or pushbutton keypad variants. It includes Bluetooth with hands-free auto-unlock, DoorSense, PIN codes, and optional Wi‑Fi/Z-Wave/Matter support via add-on modules, suiting homeowners who want flexible smart-home integration and multiple access methods.
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