
Aqara U100
Score: 88/100
Nice Digi Smart Lock
Score: 72/100Rankings

The Aqara Smart Lock U100 is a biometric deadbolt featuring a high-accuracy fingerprint sensor, multiple unlock methods, and extensive smart-home integration via Bluetooth, Zigbee and Apple Home Key. It is housed in a durable zinc-alloy body with IP65-rated outer panel, though the inner panel lacks weatherproofing. Ideal for families or shared households needing up to 50 biometric users and smart-home enthusiasts with Apple Home setups.

The NICE DIGI Smart Keypad Door Lock is a budget-friendly, keyless entry system designed for standard wooden doors with easy DIY installation. It offers IP66 water resistance and AES-256 encryption, but lacks smart home connectivity and a formal security grade. It is best suited for homeowners or renters seeking simple, reliable keyless entry without app integration.
| Attribute | ![]() | ![]() |
|---|---|---|
8 months | 12 monthsbest | |
1.38 inchesbest | — | |
2.36 inchesbest | — | |
65.6 feetbest | — | |
-31 °Fbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Battery(1) | ||
Battery Life (months) | 8 months | 12 months |
Security & Access(3) | ||
Security Grade | BHMA Level 3 | AES-256 |
Unlock Methods | Fingerprint, Keypad, NFC, Mechanical Key, Apple Home Key | Keypad, Mechanical Key |
Keypad Type | Matte | Backlit |
Installation & Compatibility(2) | ||
Door Thickness Compatibility (inches) | 1.38-2.17 inches | Standard inches |
Installation Type | Standard | DIY |
Build & Durability(3) | ||
Material | Zinc Alloy | Plastic/Metal |
IP Rating | IP65 | IP66 |
Finish | Gray | Black |


Products in the top-left offer the best value (high score, low price).

Professional reviewers commend the U100 for its precise fingerprint sensor, Apple HomeKey compatibility, solid auto-lock functionality, and impressive eight-month battery life. They also note the lock's robust zinc construction, IP65-rated outer panel, and reliable Zigbee performance when used with an Aqara hub, while calling out the need for a hub for full feature access and the non-weather-proof inner panel.
Everyday users generally praise the lock's versatility, long battery life, and weather-resistant outer housing, especially valuing the multiple unlock options and local data security. Recurring complaints focus on the requirement of an extra hub for advanced smart-home features, the inner panel's lack of weatherproofing, and the relatively heavy weight during installation.

Professional reviewers and editors praise the NICE DIGI for its secure keyless convenience, responsive keypad operation, and durable build quality. They highlight the simple DIY installation process that eliminates the need for professional help.
Everyday users and inferred feedback from product demos highlight the quick setup and reliable keyless entry as major benefits. Common praise focuses on the family-friendly nature of managing multiple passwords and the convenience of not needing physical keys.
“HomeKit News praises the U100 for its fingerprint sensor, Apple HomeKey support, auto-locking, and 8-month battery life, noting solid Zigbee 3.0 performance with an optional Aqara hub and IP65 outer panel for weather resistance.”


