Razor-sharp 2.5K Resolution: Every Detail in View
With the Xiaomi Smart Camera C400, you see more than ever before. While many cameras stop at 1080p, this model delivers an impressive 2.5K resolution (2560 x 1440 pixels). The 4-megapixel sensor, combined with an extremely bright F1.4 aperture and a high-quality 6P lens, ensures razor-sharp, color-accurate, and detailed images. Even in low light conditions, recordings remain clear and distinct, allowing you to identify important details such as faces or objects at any time.
Seamless 360° Room Monitoring Day & Night
Keep an eye on the entire room without blind spots. Thanks to the quiet dual-motor drive, the camera can pan 360° horizontally and tilt 106° vertically. Everything is conveniently controlled via the app. When night falls, the C400 switches to night vision mode. The special feature here: It uses 940nm infrared light, which is completely invisible to the human eye. This allows you to benefit from a clear view in the dark without a red glow disturbing people or pets – a perfect security camera with invisible night vision.
Intelligent AI Detection & Stable Dual-Band WiFi
No more unnecessary notifications! The integrated AI person detection precisely filters human movements from other events such as flying insects or light changes. As soon as a person is detected, the camera can automatically follow them and sends you a targeted notification. The dual-band WiFi capability ensures smooth transmission of this data. Whether you use the long-range 2.4 GHz band or the faster 5 GHz band, the C400 always finds the most stable connection in your WiFi Router Network.
Your Privacy in Focus: Multi-Level Security
Security also means protecting your data. Xiaomi has equipped the C400 with a multi-level security concept. A dedicated Xiaomi Security Chip prevents unauthorized access and manipulation. All data transmission is fully encrypted, and the strong AES-128 standard is used for recordings stored in the cloud. In addition, the camera supports the modern WPA3 WiFi security standard to optimally protect your home Network. This camera is one of the most secure IP Cameras for your home and belongs in every modern Smart Living & Gadgets setup.
Strengths & Notes at a Glance
- Pro: Excellent 2.5K image quality with bright F1.4 aperture for clear images even in low light.
- Pro: Comprehensive Network connectivity with dual-band WiFi (2.4/5 GHz) and modern WPA3 security standard.
- Pro: Effective AI person detection with automatic tracking significantly reduces false alarms.
- Pro: Complete 360° room coverage and discreet night vision without visible red glow.
- Note: For extended, event-based cloud recordings, a paid subscription may be required after a trial period.
- Note: The device requires a permanent Power Supply via USB-C and is designed exclusively for indoor use.
Specifications & Features
| Manufacturer: | Xiaomi |
| Model: | Smart Camera C400 |
| EAN: | 6934177799921 |
| Model Number: | MJSXJ23CM / MJSXJ11CM |
| Device Class: | IP Camera (Client Device) |
| Sensor Resolution: | 4 Megapixel |
| Max Video Resolution: | 2560 x 1440 Pixels (2.5K) |
| Lens: | 6P Lens (six elements) |
| Aperture: | F1.4 |
| Field of View (horizontal): | 360° (Pan-Tilt-Zoom) |
| Field of View (vertical): | 106° (Pan-Tilt-Zoom) |
| Video Encoding: | H.265 (HEVC) |
| Night Vision Technology: | 940nm Infrared Light (no visible glow) |
| Audio: | Two-Way Real-Time Voice Transmission (Full-Duplex) |
| Microphone: | Integrated, with Noise Reduction (up to 5m range) |
| WiFi Standards: | Wi-Fi IEEE 802.11a/b/g/n |
| WiFi Frequency Bands: | Dual-Band 2.4 GHz / 5 GHz |
| WiFi Security: | WPA, WPA2, WPA3 |
| Data Security: | Xiaomi Security Chip, End-to-End Encryption, AES-128 (Cloud) |
| Local Storage: | microSD Card Slot (up to 256 GB, Loop-Recording) |
| Cloud Storage: | Supported (Subscription-based) |
| Connection: | 1x USB Type-C (Power Supply) |
| Power Supply: | 5V DC ⎓ 2A (external power adapter) |
| Smart Features: | AI Person Detection, Automatic Tracking, Customizable Monitoring Times |
| App Compatibility: | Mi Home / Xiaomi Home (Android 8.0+, iOS 12.0+) |
| Voice Control: | Compatible with Google Home and Amazon Alexa |
| Operating Temperature: | -10°C to 40°C |
| Dimensions: | 119 × 78 × 78 mm |
| Weight: | approx. 318 g |
Scope of Delivery
| 1 x Xiaomi Smart Camera C400 |
| 1 x USB-C Charging Cable |
| 1 x Wall Mounting Kit |
| 1 x User Manual |
Frequently Asked Questions (FAQ)
Can the Xiaomi Smart Camera C400 record without an internet connection?
Yes, if a microSD card is inserted, the camera can record continuously or upon motion detection. However, an active internet connection is required to access recordings, live view, and notifications.
Does the camera support 5 GHz WiFi?
Yes, the C400 is a dual-band camera and supports both 2.4 GHz and 5 GHz WiFi networks, ensuring a more flexible and stable connection.
Is the camera's night vision visible in the dark?
No, the camera uses 940nm infrared LEDs. This wavelength is not visible to the human eye as a red glow, allowing for discreet monitoring without disturbing people in the room.
How is privacy protected with the Xiaomi C400?
The camera uses multiple layers of security: a dedicated security chip, end-to-end data transmission encryption, AES-128 encryption for cloud data, and the modern WPA3 WiFi security standard.
Can the camera be mounted on the ceiling?
Yes, a wall-mounting kit is included. The camera can be placed upright or mounted upside down on the ceiling. The image orientation can be rotated by 180° in the app accordingly.
What is the difference between models MJSXJ23CM and MJSXJ11CM?
According to Xiaomi, it is merely an update to the model number. The product's functions and specifications have remained identical.
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