Xiaomi has introduced the Smart Door Lock 4 Pro Dual Camera Edition in China, a significant upgrade over the original Smart Door Lock 4 Pro released just a few months ago. Designed for smarter, safer home entry, this new model adds more advanced video capabilities and longer-lasting power while keeping the convenient unlocking options that made its predecessor popular.
The headline change is the dual-camera setup. The main 3MP camera offers a 160° field of view for a broader look at your doorstep, complemented by a second 2MP camera with a 128° field of view to capture more angles and improve visibility. Compared to the original’s single 2MP, 152° camera, the new system is built to deliver clearer video and better situational awareness.
Inside, a 3.97-inch display lets you see who’s at the door before you answer. The lock supports both Bluetooth and Wi‑Fi, enabling live video streaming, visitor previews, and tamper alerts through the Xiaomi Home app. You can check in from anywhere, get notifications when someone approaches, and review what happened while you were away.
Security and convenience remain front and center with twelve ways to unlock. Options include AI facial recognition, palm vein recognition, fingerprint scanning, NFC, Bluetooth, and a passcode, plus a physical backup key for emergencies. Whether you prefer hands-free entry or traditional methods, the system flexes to your routine.
Battery life gets a boost, too. The Dual Camera Edition combines a 6,870 mAh lithium battery with four AA alkaline batteries, delivering up to six months of use between charges under typical conditions. That means fewer interruptions and more reliable protection.
Pricing in China is set at CNY 2,899 (approximately $408), which is CNY 400 more than the original model. While the Smart Door Lock 4 Pro Dual Camera Edition is currently limited to the Chinese market, the brand already offers products like the Smart Doorbell 3S in Europe, where it’s currently listed around €89.99 in Germany. A self-install smart lock for that region may be on the horizon.
Key takeaways:
– Dual-camera system: 3MP main camera with 160° FOV plus 2MP secondary camera with 128° FOV for wider, clearer coverage
– Twelve unlocking methods: AI facial recognition, palm vein, fingerprint, NFC, Bluetooth, passcode, and a physical key
– 3.97-inch indoor display for at-a-glance visitor checks
– Wi‑Fi and Bluetooth connectivity with live streaming, notifications, and tamper alerts via the Xiaomi Home app
– Extended power setup: 6,870 mAh lithium battery plus four AA batteries, up to six months of typical use
– Price in China: CNY 2,899 (around $408); availability outside China not yet announced
If you’ve been considering a smart lock that blends robust security with advanced video features and long battery life, the Smart Door Lock 4 Pro Dual Camera Edition is a compelling option—especially for households that want comprehensive doorstep visibility and flexible, secure entry methods.
