Knob or Lever Smart Locks? Compared by Specs
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Choosing the right entry hardware often comes down to knob vs lever deadbolt preferences. Both the Ulecoce U68 and eufy Security T8506 offer five unlocking methods, including fingerprint, keypad, app, key, and voice control. They also support Amazon Alexa and Google Assistant. The main difference lies in the included exterior hardware. One comes with a traditional round knob set, while the other features a modern lever handle. This choice affects both aesthetics and how you operate the door.
Key differences
| Aspect | Ulecoce Fingerprint Deadbolt with Knob | eufy Security Modern Deadbolt and Lever Set |
|---|---|---|
| Included Hardware | Knob set | Front door lever set |
| Connectivity | Requires gateway for remote/voice | Built-in Wi-Fi |
| Battery Life | Not listed | Up to 8 months |
| Warranty | 3 years | 18 months |
Which one should you choose?
Choose Ulecoce Fingerprint Deadbolt with Knob if
- You prefer the classic look and feel of a round knob.
- You want a longer manufacturer warranty period.
- You do not mind purchasing a separate gateway for remote features.
Choose eufy Security Modern Deadbolt and Lever Set if
- You want built-in Wi-Fi without extra hardware.
- You prefer the ergonomic operation of a lever handle.
- You need to know the specific battery duration before buying.
Verdict: The Ulecoce U68 suits those who prefer traditional knobs and want extended warranty coverage. The eufy Security T8506 is better for users who want immediate remote access via built-in Wi-Fi and modern lever aesthetics.
Knob or Lever Deadbolt Specs
Included Hardware
The Ulecoce U68 includes a knob set, which suits traditional door styles and offers a classic turning mechanism. You might prefer this if your existing door hardware uses round handles. The eufy Security T8506 comes with a front door lever set. Levers are often easier to operate when your hands are full or if you have limited grip strength. This design provides a modern aesthetic that matches contemporary entryways. Your choice depends on whether you want a traditional knob or a functional lever for daily use.
Power Source
Battery life is a key practical concern for any smart lock. The eufy Security T8506 uses eight AA batteries and offers up to eight months of use on a single set. This long interval reduces the frequency of battery changes. The Ulecoce U68 data does not specify its battery type or estimated lifespan. Without this information, you cannot compare endurance directly. However, knowing the eufy model runs on standard AA cells helps you plan maintenance. You will need to monitor the Ulecoce battery status via the app, as the duration remains unclear from the published specs.
Connectivity
Remote management requires a stable connection. The eufy Security T8506 features built-in Wi-Fi, allowing direct connection to your home network. This means you can control the lock and view logs from anywhere without extra hardware. The Ulecoce U68 requires a separate gateway for remote and voice control features. You must purchase this gateway independently to enable app-based unlocking and Alexa or Google Assistant integration. If you want a plug-and-play experience without additional purchases, the eufy model offers a more integrated connectivity solution out of the box.
Access Methods
Both locks provide five distinct ways to enter your home. The Ulecoce U68 supports fingerprint recognition, keypad entry, app control, physical keys, and voice commands. The eufy Security T8506 offers the same five methods: fingerprint, app, keypad, key, and voice. Both recognize fingerprints in under 0.3 seconds. This similarity ensures you have flexible options regardless of the brand you choose. Whether you prefer a code, your phone, or your biometric data, both models cover these standard access needs effectively for everyday use.
Smart Home Compatibility
Integration with voice assistants adds convenience for hands-free operation. Both the Ulecoce U68 and eufy Security T8506 are compatible with Amazon Alexa and Google Assistant. This allows you to lock or unlock the door using voice commands. The Ulecoce model requires its specific gateway to enable these voice features, while the eufy model uses its built-in Wi-Fi for the same function. Both ecosystems allow you to manage permissions and check status through their respective apps. For general smart home voice control, both products offer equivalent compatibility with major platforms.
Choose the right entry hardware today
You want classic round handle aesthetics
The Ulecoce U68 includes a knob set, which suits traditional door styles and offers a classic turning mechanism. You might prefer this if your existing door hardware uses round handles. It also features a 3-year warranty and supports up to 512 fingerprints for large households.
You prefer modern lever handles and built-in Wi-Fi
The eufy Security T8506 comes with a front door lever set, providing a sleek, modern look. It features built-in Wi-Fi, so you do not need a separate gateway for remote app control. It also offers an impressive 8-month battery life powered by eight AA batteries.
You need long battery life without a bridge
This model runs on eight AA batteries for up to 8 months of use. The built-in Wi-Fi allows you to manage access, view event history, and receive notifications directly through the app. You get seamless integration with other eufy devices without purchasing extra hardware.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Ulecoce Fingerprint Deadbolt with Knob | Standard doors needing knob entry and fast fingerprint access | Check price of Ulecoce Fingerprint Deadbolt with Knob on Amazon |
| 2 | eufy Security Modern Deadbolt and Lever Set | Users preferring a lever handle with Wi-Fi control | Check price of eufy Security Modern Deadbolt and Lever Set on Amazon |
The products compared
Ulecoce Fingerprint Deadbolt with Knob
Best for: Standard doors needing knob entry and fast fingerprint access
- Included Hardware
- Knob (what this guide is about)
- Access Methods
- Fingerprint, keypad, app, key
- Smart Home Compatibility
- Alexa, Google Assistant
- Auto-Lock Delay
- 5 to 60 seconds
- Included Door Hardware
- Deadbolt with knob set
- Color
- Black
View on Amazon: Ulecoce Fingerprint Deadbolt with Knob Affiliate link
The Ulecoce U68 is a matte black deadbolt that includes a matching knob set. It offers five access methods: fingerprint, keypad, app, key, and voice. The fingerprint sensor recognizes users in 0.3 seconds and unlocks in one second. It stores 512 fingerprints and passcodes. The app allows remote management and access logs. You need a separate gateway for voice control with Alexa or Google Assistant.
Pros
- Includes a matching knob set for standard doors
- Stores up to 512 fingerprints and passcodes
- Fingerprint recognition in 0.3 seconds
- App control for remote access and logs
Cons
- Voice control requires a separate gateway
- App unlocking limited to 5-meter range
- No mention of battery type or capacity
Good fit if
- You want a keyed entry lock with a knob
- You need fast fingerprint access for family members
- You prefer managing access codes via an app
Skip if
- You require a lever handle instead of a knob
- You want native voice control without extra hardware
- You need remote unlocking from anywhere outside range
Verdict: Ulecoce U68 Knob Deadbolt fits households needing a standard knob entry with fast biometric access and app management. It is best for users who value quick entry and do not mind purchasing a gateway for voice features.
eufy Security Modern Deadbolt and Lever Set
Best for: Users preferring a lever handle with Wi-Fi control
- Access Methods
- Fingerprint, app, keypad, key, voice
- Connectivity
- Built-in Wi-Fi
- Smart Home Compatibility
- Alexa, Google Assistant
- Included Door Hardware
- Lever handle set
- Power Source
- Battery Powered
- Water Resistance
- Waterproof
View on Amazon: eufy Security Modern Deadbolt and Lever Set Affiliate link
This eufy Security deadbolt includes a front door lever set for a unified look. It uses built-in Wi-Fi for app control without a bridge. You get five access methods, including fingerprint recognition in under 0.3 seconds. The device runs on eight AA batteries for up to 8 months. It installs in 15 minutes on standard US and CA doors. This lever option suits those who prefer a traditional handle shape over a knob.
Pros
- Includes matching front door lever set for aesthetic consistency
- Built-in Wi-Fi allows remote management via the eufy Security app
- Fingerprint recognition unlocks in less than 0.3 seconds
- Runs on 8 AA batteries for up to 8 months
Cons
- Lever handle may not suit users who prefer a knob
- Requires 8 AA batteries, which are not included
- No mention of Bluetooth connectivity for local access
Good fit if
- You want a lever-style handle for your front door
- You need remote access control via Wi-Fi
- You prefer a unified design with matching hardware
Skip if
- You prefer a traditional knob over a lever
- You want to avoid using multiple AA batteries
- You need a lock that works without Wi-Fi
Verdict: eufy Security Smart Lock Lever Set offers reliable Wi-Fi control and fast fingerprint access for users who prefer a lever handle. It is a solid choice for those seeking a cohesive, modern entryway solution.
Specifications side by side
| Spec | Ulecoce Fingerprint Deadbolt with Knob | eufy Security Modern Deadbolt and Lever Set |
|---|---|---|
| Access Methods | Fingerprint, keypad, app, key | Fingerprint, app, keypad, key, voice |
| Connectivity | not stated | Built-in Wi-Fi |
| Smart Home Compatibility | Alexa, Google Assistant | Alexa, Google Assistant |
| Auto-Lock Delay | 5 to 60 seconds | not stated |
| Included Door Hardware | Deadbolt with knob set | Lever handle set |
| Power Source | not stated | Battery Powered |
| Access Method | Keypad, Fingerprint, App Control | Keypad, Fingerprint, App Control |
| Water Resistance | not stated | Waterproof |
| Color | Black | Black |
| Application | Front Door | Front Door |
| Included Hardware | Knob | Handle |
| Style | not stated | Modern |
| Special Features | Auto Lock | not stated |
| Dimensions | 3.54 × 7.17 × 11 inches | 6.08 × 2.53 × 0.99 inches |
| Weight | 2 pounds | not stated |
| Size | / | Small Handle |
| Model | Ulecoce U68 | T8506 |
Frequently asked questions
Is a lever handle easier to use than a knob?
Lever handles are generally easier to operate because you can push them down with your hand, elbow, or forearm. The eufy Security T8506 features a lever design that suits users who prefer this modern, accessible entry style. It eliminates the need to grip and twist, making it convenient for carrying items.
Do smart deadbolts with knobs support fingerprint entry?
Yes, many knob-style smart deadbolts include biometric access. The Ulecoce U68 combines a traditional knob with fast fingerprint scanning. You can unlock the door by placing your finger on the sensor, which provides a quick and secure entry method without needing to remember a code or carry a key.
Which handle type works better with existing door hardware?
If your current door features a round handle, a knob deadbolt is the natural fit. The Ulecoce U68 includes a knob set that matches this classic aesthetic. For doors with straight or angled handles, a lever deadbolt like the eufy Security T8506 offers a cohesive and modern look.
Can I control both knob and lever locks via an app?
Yes, both the Ulecoce U68 and the eufy Security T8506 allow app management. You can monitor access and lock or unlock the door remotely using your smartphone. This feature applies regardless of whether you choose the traditional knob style or the modern lever design for your entryway.
Do these smart locks work with voice assistants?
Both models support Amazon Alexa and Google Assistant integration. You can use voice commands to lock or unlock the door, providing hands-free convenience. This functionality is available for both the Ulecoce U68 knob deadbolt and the eufy Security T8506 lever set, enhancing overall smart home compatibility.
What is the main difference between a knob and lever smart lock?
The primary difference is the physical handle mechanism. Knob locks, like the Ulecoce U68, require a twisting motion to operate. Lever locks, such as the eufy Security T8506, are pushed down. This affects ease of use and aesthetic preference, but both types offer similar smart features like keypads and biometric access.

