In the world of smart home electronics, choosing a front-door smart lock usually comes down to how many ways you want to unlock it and how much app control you need. This head-to-head compares the Kucacci Keypad Smart Home Door Lock Keyless App Fingerprint Lock Waterproof with the 7-in-1 Smart Door Lock APP Biometric Fingerprint Touch Password Keyless Keypad.
Quick verdict
Pick the Kucacci for a simpler, more conventional keypad-and-fingerprint lock that is easy to fit on universal/reversible doors. Pick the 7-in-1 if you want TTLOCK app management, temporary visitor passwords, IC card support, and a larger fingerprint capacity. The price gap is only USD 1.85, so the decision really comes down to feature priorities.
At a glance
| Product | Listed price | Price bar | Best for |
|---|---|---|---|
| Kucacci Keypad Smart Home Door Lock Keyless App Fingerprint Lock Waterproof | USD 57.99 | Simple keypad and fingerprint entry with key backup | |
| 7-in-1 Smart Door Lock APP Biometric Fingerprint Touch Password Keyless Keypad | USD 59.84 | App control, IC card, and temporary visitor passwords |
Both locks are new, finished in black, and ship with hardware, instructions, and a key. The Kucacci positions itself as a straightforward keypad and fingerprint lock, while the 7-in-1 leans into app-driven features and multiple entry methods. That difference matters depending on how many people use your door and how often you share access.
Where each product wins
- The Kucacci wins on a lower listed price, a matte black finish, stainless steel material, and universal/reversible handing.
- The 7-in-1 wins on TTLOCK app management, five unlocking methods, a 250-fingerprint capacity, Bluetooth support, and adjustable volume.
If you want a lock that feels like an upgraded traditional deadbolt, the Kucacci is that. If you want a lock that behaves like a smart-home hub, the 7-in-1 is that.
Product notes
Kucacci Keypad Smart Home Door Lock Keyless App Fingerprint Lock Waterproof

The Kucacci lock is the more direct option in this pair. It pairs a keypad with a fingerprint reader, and its features include keyless operation, an electronic design, and a traditional key for backup. The matte black finish and stainless steel material give it a clean, durable look, and the universal/reversible handing is useful if your door swing is not standard. For a front-door lock that does not demand a lot of setup decision-making, this is the easier choice.
The Kucacci's key selling points are keyless entry, easy installation, and a keyed backup, rather than app-based extras. The 7-in-1 is the one that spells out temporary visitor passwords, IC card swiping, and remote unlocking. If those advanced sharing options are important to you, the 7-in-1 is the direction to go.
7-in-1 Smart Door Lock APP Biometric Fingerprint Touch Password Keyless Keypad

The 7-in-1 lock is built around the TTLOCK app, which expands what a smart lock can do after it is installed. It supports fingerprint, password, IC card, app-based remote unlocking, and a mechanical key. You also get Bluetooth support, low-battery reminders, adjustable volume, and a fingerprint capacity of 250, making it a solid fit for households with multiple users or regular visitors.
The 7-in-1 lists a 60mm door thickness, while the Kucacci lists universal/reversible handing. If your door falls inside the 60mm specification, the 7-in-1 gives you the most entry flexibility; if you need a lock that adapts to either swing, the Kucacci has that explicit feature.
Final choice by use case
- For a straightforward keypad-and-fingerprint lock with key backup: Choose the Kucacci.
- For maximum entry methods and app control: Choose the 7-in-1.
- For a door with non-standard handing: The Kucacci's universal/reversible handing is the explicit match.
- For a 60mm door and many users: The 7-in-1's 250-fingerprint capacity and temporary passwords fit best.