What the extra money buys

I break down the fingerprint smart lock tradeoff. This is for you if you need to know exactly what the cheaper listing gives up versus the higher price…

By Jonah Reeves · Home editor · Home desk · Gadget Evaluator Lab

Jonah wouldn't reorder this if… The cheaper fingerprint smart lock often lacks specific connectivity or battery life features. The higher price buys the exact specs listed in the title, not just a brand name.

1. Best overall: Aqara NFC Card for Smart Locks U100, U50, U200, U300, U400, 1 Pack
2. Best value: Smart Door Lock with Video Doorbell & Fingerprint,Security Front…
3. Upgrade pick: S398 Video Smart Lock, 4-in-1 Fingerprint Door Lock with Camera &…
4. Lighter option: Lockly Secure Pro Zeno Wi-Fi Deadbolt Smart Lock with Apple Home Key
5. Spare to keep: WiFi Video Smart Lock with Handle, 5-in-1 Keyless Deadbolt for…
6. Check the size: eufy Security Smart Lock Familock E32, Fingerprint Keyless Entry…
7. Worth a second look: Lockly Guard Secure Pro Deadbolt Smart Lock with 0.3s AI Fingerprint
8. Only if it fits: SMONET Smart Lock Front Door with Handle, Keyless Entry Door Lock…

Best overall

Aqara NFC Card for Smart Locks U100, U50, U200, U300, U400, 1 Pack

What fitsThis is a single NFC card designed specifically for Aqara smart locks, compatible with the U100, U50, U200, U300, and U400 series.

What to checkIf you do not already own one of those specific Aqara lock models, this card is useless to you, as it is not a universal key fob for other brands.

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Best value

Smart Door Lock with Video Doorbell & Fingerprint,Security Front…

What fitsThis listing combines a fingerprint smart lock with an integrated video doorbell unit for front door security.

What to checkSkip this if you already have a separate video doorbell system, as the integrated camera may not match the resolution or field of view of a dedicated security camera setup.

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Upgrade pick

S398 Video Smart Lock, 4-in-1 Fingerprint Door Lock with Camera &…

What fitsThe S398 is a 4-in-1 fingerprint door lock that includes a camera, video doorbell, and an indoor display monitor for remote monitoring.

What to checkAvoid this if you prefer a minimalist aesthetic, as the inclusion of an indoor display monitor adds bulk to your interior door frame that a standard deadbolt does not have.

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Lighter option

Lockly Secure Pro Zeno Wi-Fi Deadbolt Smart Lock with Apple Home Key

What fitsThe Lockly Secure Pro Zeno is a Wi-Fi deadbolt smart lock that features Apple Home Key integration for seamless access.

What to checkDo not buy this if you are in an Android-only household, as the Apple Home Key feature will not function without an iPhone or Apple ecosystem device.

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Spare to keep

WiFi Video Smart Lock with Handle, 5-in-1 Keyless Deadbolt for…

What fitsThis is a 5-in-1 keyless deadbolt for front doors that includes a handle mechanism and Wi-Fi connectivity.

What to checkSkip this if your door requires a specific latch bolt length that is not standard, as the handle design may not align with non-standard door preparations.

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Check the size

eufy Security Smart Lock Familock E32, Fingerprint Keyless Entry…

What fitsThe eufy Security Smart Lock Familock E32 provides fingerprint keyless entry for door security.

What to checkAvoid this if you require a video doorbell feature, as this listing is focused on fingerprint entry and does not explicitly include a camera or video component in the title.

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Worth a second look

Lockly Guard Secure Pro Deadbolt Smart Lock with 0.3s AI Fingerprint

What fitsThe Lockly Guard Secure Pro is a deadbolt smart lock that highlights a 0.3s AI fingerprint recognition speed.

What to checkSkip this if you need a video doorbell or camera integration, as this model is strictly a fingerprint deadbolt without the visual monitoring components found in other listings.

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Only if it fits

SMONET Smart Lock Front Door with Handle, Keyless Entry Door Lock…

What fitsThe SMONET Smart Lock is a front door set with a handle, featuring fingerprint, app, Bluetooth, and electronic keypad access.

What to checkDo not buy this if you require a video doorbell, as this listing is a keyless entry set with a handle and does not include a camera or video monitoring system.

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You are standing in front of two fingerprint smart lock listings that look identical in the thumbnail. The only difference is the price, and you need to know if that gap buys you a better sensor, a specific deadbolt size, or just a different outlet type for the power backup.

Look at the title string on Amazon. You need to see the exact deadbolt size, the battery type, and whether it mentions a specific keypad or WiFi module. If the listing does not name the physical dimensions or the connectivity standard, the price difference is meaningless.