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The Best Smart Locks: Which Is Right For Your Home?
Lockly Flex Touch Fingerprint Deadbolt - Lockly
Smart Deadbolt, SMONET Fingerprint Electronic Deadbolt Door Lock with Keypad-Bluetooth Keyless Entry Keypad Smart Deadbolt App Control, Ekeys Sharing, App Monitoring Auto Lock for Homes and Hotel : Amazon.com.au: Home Improvement
Otto may be the smallest smart lock out there — and the most expensive - The Verge