Aqara Smart Video Doorbell G4 (SVD-KIT1)

Aqara Smart Video Doorbell G4 (SVD-KIT1)
Security Grade B Calculator v1	Aqara Smart Video Doorbell G4 Brand: Aqara (Parent: Lumi United Technology Co., Ltd.) Category: Doorbell • Model / Gen: G4 SVD-KIT1 Release Date: 2023-05-08 • Status: In sale Classification Date: 2026-10-24 • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	https://www.aqara.com/en/product/smart-video-doorbell-g4/specs/ 🔗 Proof	The outdoor unit is physically accessible and includes tamper alerts plus pre-event cloud clips; the microSD card is housed in the indoor repeater.
Known vulnerabilities	None	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=Aqara 🔗 Proof	No product-specific CVE or known-exploited entry was found in the reviewed NVD and CISA records as of 2026-10-24. This is a documentation-based finding, not a security audit.
Prior attacks	None	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=Aqara 🔗 Proof	No public model-specific exploitation campaign was found.
Updatability	Very common	https://store-support.aqara.com/products/aqara-video-doorbell-g4 🔗 Proof	The product is managed through Aqara Home and has product-specific vendor support; firmware updates can be delivered through the vendor ecosystem.
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Full	🔗 Proof	Supports HomeKit Secure Video, Google and Alexa integrations, all of which require authenticated account or accessory pairing.
Communications	Encrypted with up-to-date encryption	🔗 Proof	Aqara states that HomeKit Secure Video content is encrypted before storage in iCloud; the doorbell also supports two-way audio.
Storage	Encrypted with obselete encryption	https://www.aqara.com/en/product/smart-video-doorbell-g4/specs/ 🔗 Proof	The HomeKit Secure Video cloud path is encrypted, but encryption at rest is not documented for the local microSD recording path.
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Basic	https://www.aqara.com/privacy-policy/ 🔗 Proof	An Aqara Home account is used to configure and share the device; detailed administrator roles are not publicly documented.
Authentication	Basic	https://www.aqara.com/privacy-policy/ 🔗 Proof	Access relies on the Aqara account and ecosystem pairing; device-specific multi-factor authentication is not documented.
Brute-force protection	Basic	https://www.aqara.com/privacy-policy/ 🔗 Proof	No public account lockout or rate-limit policy was found; the rating is conservative.
Event logging	Partial logging	🔗 Proof	The system records face, loitering, tamper, motion and doorbell events; a complete administrator audit log is not documented.
Passwords	Require change after setup with complexity requirements	https://www.aqara.com/privacy-policy/ 🔗 Proof	Setup uses a user-created Aqara account; no shared default device password is documented.
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	Embedded firmware (Companion App: Aqara Home)
Hardware (CPU / GPU)	CPU: • GPU:
Memory & Storage	Memory: • Storage: Up to 512 GB microSD in chime repeater
Power, Battery & Charging	Battery: 6 × AA 1.5 V LR6; up to about 4 months under the manufacturer's stated usage profile • Power: 12–24 V AC 0.2 A 50/60 Hz or 8–24 V DC 0.5 A; repeater 5 V / 1 A USB-C • Charging: Battery-powered; batteries are replaceable
Display & Camera	Display: None • Camera: 1080p, 162° field of view, IR night vision
Sound & Connectivity	Sound: Two-way audio; 95 dB chime speaker • Connectivity: 2.4 GHz IEEE 802.11 b/g/n Wi-Fi (doorbell and repeater)
Physical (Dimensions & Mass)	Dimensions: 141.5 × 65 × 30.4 mm (doorbell); 65.2 × 65 × 28.4 mm (repeater) • Mass: 163 g doorbell without batteries; 68 g repeater