{"product_id":"fingerprint-door-lock-smart-door-knob-with-app-control-keyless","title":"Fingerprint Door Lock Smart Door Knob with App Control - Keyless","description":"\u003cp\u003eIn this review of the Fingerprint Door Lock smart door knob, the bottom line is simple: this is a practical, budget-friendly upgrade for interior doors where convenience and quick access matter most. The lock's strongest selling point is its 3-in-1 approach - local \u003cstrong\u003efingerprint\u003c\/strong\u003e unlocking, Bluetooth app control, and a traditional key backup - which makes it a flexible choice for bedrooms, apartments, and home offices where wired or cloud systems are unnecessary. It is best suited to homeowners or renters who want a straightforward, rechargeable smart knob that keeps biometric data local.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-in-1 access:\u003c\/strong\u003e Combines fingerprint, Bluetooth app control, and a physical key so you have multiple entry options for different situations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree user modes:\u003c\/strong\u003e Passage, entrance, and privacy modes are easy to switch by rotating your thumb on the knob and offer quick control over access behavior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal biometric storage:\u003c\/strong\u003e Stores up to 50 fingerprints on the device itself so biometric data is not uploaded to the cloud, protecting family privacy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto lock and battery indicators:\u003c\/strong\u003e 5s auto-lock and a visual power display with low-battery alarm help prevent lockouts and signal when recharging is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable battery:\u003c\/strong\u003e Built-in 400mAh battery recharges in about 3 to 4 hours via USB A to Type-C, removing the need for disposable batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation:\u003c\/strong\u003e Designed to fit most US doors and installs with a screwdriver following the included instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis smart knob is best for renters, families, and apartment dwellers who want \u003cstrong\u003ekeyless convenience\u003c\/strong\u003e on interior or main entry doors without a complex setup. It works well where Bluetooth-range app control is sufficient and where owners appreciate local fingerprint storage rather than cloud syncing.\u003c\/p\u003e\n\u003cp\u003eThose who need full remote Wi-Fi control, an integrated smart-home hub, or industrial-grade commercial security should look elsewhere, since Wi-Fi requires an additional gateway and the product is intended for typical residential door use rather than heavy-duty commercial applications.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMultiple access methods provide flexibility and a reliable key backup.\u003c\/li\u003e\n\u003cli\u003eEasy to install with common tools and clear instructions, making DIY fitting straightforward.\u003c\/li\u003e\n\u003cli\u003eLocal fingerprint storage and a visible power display protect privacy and reduce surprise downtime.\u003c\/li\u003e\n\u003cli\u003eRechargeable battery eliminates repeated AA replacements and charges in a few hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApp control works only within Bluetooth range and Wi-Fi requires buying a separate gateway.\u003c\/li\u003e\n\u003cli\u003eSome users report mixed lock functionality, so fit and operation should be checked on delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eFingerprint door knob (smart lock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccess methods\u003c\/td\u003e\n\u003ctd\u003eFingerprint, Bluetooth app, physical key\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFingerprint capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 50 fingerprints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 400mAh rechargeable (USB A to Type-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto lock\u003c\/td\u003e\n\u003ctd\u003e5 second auto locking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModes\u003c\/td\u003e\n\u003ctd\u003ePassage, entrance, privacy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eFits most US doors; Wi-Fi requires separate gateway\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Fingerprint Door Lock smart door knob is a sensible, value-oriented choice for bedrooms, apartments, and home interiors that need quick, keyless access with a fallback key. With local fingerprint storage, easy installation, and a rechargeable battery, it offers practical features for everyday residential use - just be aware that app control is limited to Bluetooth range and some users report inconsistent lock performance.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I control the lock from anywhere?\u003c\/strong\u003e\u003cbr\u003eNot by default; app control works within Bluetooth range and Wi-Fi access requires purchasing a separate gateway.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many fingerprints can be stored?\u003c\/strong\u003e\u003cbr\u003eThe device stores up to 50 fingerprints locally on the unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the battery take to charge?\u003c\/strong\u003e\u003cbr\u003eThe built-in 400mAh battery typically recharges in about 3 to 4 hours using the included USB cable.\u003c\/p\u003e","brand":"DSJJBLL","offers":[{"title":"Default Title","offer_id":48196706238683,"sku":"B0DZY799G4","price":39.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61egGaibK3L._AC_SL1500.jpg?v=1770298938","url":"https:\/\/gearmusthave.com\/products\/fingerprint-door-lock-smart-door-knob-with-app-control-keyless","provider":"GearMustHave","version":"1.0","type":"link"}