
eufy Video Smart Lock S330 3-in-1
Score: 85/100
Yale Assure Lock 2
Score: 88/100Rankings

The Yale Assure Lock 2 is a high-feature smart deadbolt that stands out for its support of Apple Home Key and extensive connectivity options including Z-Wave and ZigBee. It offers robust security with a tamper alarm and DoorSense sensor, though it relies on standard AA batteries. It is best suited for tech-savvy users who want deep smart home integration and Apple ecosystem compatibility.

The eufy Security Video Smart Lock S330 is a comprehensive 3-in-1 device combining fingerprint deadbolt, 2K HD camera, and video doorbell with chime. It offers keyless entry via app, voice, keypad, or keys, powered by a single 10,000 mAh battery that lasts up to 365 days without requiring subscription fees. It is ideal for families or frequent travelers needing all-in-one front-door monitoring without subscriptions.
| Attribute | ![]() | ![]() |
|---|---|---|
365 hoursbest | — | |
50 credentialsbest | — | |
6.1 metersbest | 4.5 meters |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Battery(2) | ||
Battery Type | Rechargeable Lithium | 4 x AA |
Backup Power | true | |
Connectivity & Smart Home(3) | ||
Connectivity Standards | Wi-Fi 2.4GHz | Wi-Fi, Bluetooth, Z-Wave, ZigBee |
Voice Assistant Compatibility | Alexa, Google Assistant | Alexa, Google, Apple Home |
Bluetooth Range (meters) | 6.1 meters | 4.5 meters |
Durability & Environment(2) | ||
IP Rating | IP65 | |
Operating Temperature | -30°C to 70°C | -25°C to 60°C |
Access & Security(4) | ||
Security Grade | BHMA | Grade 2 |
Unlock Methods | Fingerprint, App, Voice, Keypad, Keys | Keypad, Physical Key, App, Voice, Auto-Unlock, Apple Watch |
Fingerprint Capacity (credentials) | 50 credentials | credentials |
Activity Log | true | |
Build & Design(1) | ||
Material | Zinc | |

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

Professional reviewers praise the S330's integration and battery life, calling it a transformative 3-in-1 solution for front-door security. They highlight the crystal clear 2K views and reliable motion detection up to 19 feet. Editors also note its BHMA certification and IP65 rating as key indicators of durability in harsh conditions ranging from -22°F to 158°F.
Everyday users commonly praise the effortless 0.3-second fingerprint unlocks, noting they are faster than keys, and the reliable 365-day battery life. Clear 2K video and accurate AI alerts that reduce false notifications by 95% are also highly valued. Recurring complaints focus on setup complexity with the chime and microSD, occasional Wi-Fi connectivity issues on 2.4 GHz, and the heavy 5.5 lb weight feeling difficult during install.
“faster than keys”


Choose the S330 for integrated video and fingerprint features without subscriptions; choose Yale for a slimmer profile if video is not a priority.
