Aquara | Juncore® Smart Door Lock · Retrofit Lock · U300

A premium retrofit smart lock for effortless everyday entry. With Matter over Thread, Apple Home Key, fingerprint unlocking, and quiet auto-lock security, the Aqara U200 transforms your existing door into a smarter, more seamless access experience—without changing the way your home is built.

Key Features

• Retrofit design that works with compatible existing cylinders and avoids major door modification

• Matter over Thread for broad smart home interoperability

• Apple Home Key support for tap-to-unlock with compatible iPhone or Apple Watch

• Multiple unlocking methods including fingerprint, password, NFC, app control, mechanical key, and more

• Auto-Lock after door closure detection

• Quiet Unlock Mode for lower-noise entry, especially useful at night

• Up to 6 months of battery life with rechargeable Li-Ion power

• Keypad supports 4 AAA batteries or 12V–24V wired power

• Remote lock/unlock available with Aqara Hub M3 or a compatible Matter Controller + Thread Border Router depending on ecosystem

• Product type: Retrofit smart lock for compatible existing cylinders

• Wireless protocol: Matter over Thread

• Battery life: Up to 6 months

• Lock power: Rechargeable Li-Ion battery

• Keypad power: 4 AAA batteries or 12V–24V power supply

• Low-battery alert: alerts at below 20%, with about two weeks of normal use remaining according to Aqara FAQ

• Auto-Lock: supported

• Quiet Unlock Mode: supported

• Failed-attempt protection: after 10 incorrect attempts, password input can be disabled for 30 minutes by default setting shown in FAQ

• Remote access: via Aqara Hub M3 or a compatible Matter Controller and Thread Border Router