Illustration, not a photograph. Official product imagery pending.
Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection
In stock
Indoor security camera on Wi-Fi 2.4 GHz and 5 GHz. Hub required: No. Local control: Partial.
Direct answer: is the Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection right for you?
Dual-band Wi-Fi and NAS recording are what separate this from the Rs3,000 tier.
Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection
Editorial verdict
Grounded in published specifications
Summary verdict: Dual-band Wi-Fi and NAS recording are what separate this from the Rs3,000 tier. The 5 GHz radio matters because a 2.5K stream on a congested 2.4 GHz band in an apartment block is where most cheap cameras visibly stutter, and SMB recording to a NAS means footage lands somewhere you control rather than on a card that walks out with the camera.
Who should buy this
Anyone who wants 2K-class detail, on-device AI filtering, and footage stored on their own NAS.
Who should avoid this
Anyone wanting outdoor placement or Apple Home support -- neither is offered.
Key strengths
- 2.5K at f/1.4 is a real step up in low light over 1080p cameras
- Records to NAS over SMB as well as microSD, with no subscription
- Human, pet and vehicle detection run on the camera rather than in the cloud
Limitations
- No Apple HomeKit support
- Indoor only
- The Mi Home app pushes cloud storage prompts persistently
Technical specifications
- Type
- Indoor security camera
- Brand
- Xiaomi
- Sensor
- 4 MP with f/1.4 aperture
- Protocol
- Wi-Fi 2.4 GHz and 5 GHz
- Warranty
- 1 Year Manufacturer Warranty
- Model SKU
- MJSXJ11CM
- Resolution
- 2.5K, 2560 x 1440 at 20 fps
- Works with
- Amazon Alexa, Google Home, Mi Home app
- AI detection
- Human, pet and vehicle, processed on device
- Battery life
- Not applicable, mains powered
- Hub required
- No -- Connects directly to the router
- Neutral wire
- Not applicable
- Night vision
- Infrared plus full-colour low-light mode
- Pan and tilt
- 360 degrees horizontal, 108 degrees vertical
- Power source
- Mains via USB-C adapter
- Subscription
- Not required
- Local control
- Partial. microSD and NAS recording continue during an outage; remote viewing does not
- Local storage
- microSD up to 256 GB, plus NAS over SMB
- Weather rating
- IP20, indoor use only
Product overview
Dual-band Wi-Fi and NAS recording are what separate this from the Rs3,000 tier. The 5 GHz radio matters because a 2.5K stream on a congested 2.4 GHz band in an apartment block is where most cheap cameras visibly stutter, and SMB recording to a NAS means footage lands somewhere you control rather than on a card that walks out with the camera.
Key capabilities
- Protocol: Wi-Fi 2.4 GHz and 5 GHz
- Hub required: No
- Local control: Partial
- Works with: Amazon Alexa, Google Home, Mi Home app
Frequently asked questions
Is the Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection worth buying?
Dual-band Wi-Fi and NAS recording are what separate this from the Rs3,000 tier.
What is the warranty and return policy for the Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection?
1 Year Manufacturer Warranty. Returns: 7 Days Replacement Guarantee.
Who is the Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection best suited for?
Anyone who wants 2K-class detail, on-device AI filtering, and footage stored on their own NAS.
Who should avoid the Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection?
Anyone wanting outdoor placement or Apple Home support -- neither is offered.
Sample reviews
3 reviewsThese are illustrative, not customer reviews.
DealSurge has not sold this product, so nobody has reviewed it. Each entry below is written from the strengths and drawbacks recorded on this page, to show how reviews would appear — none of it is a real buyer’s experience, and none of it is counted in search results or given to the shopping assistant.
Mean of 3 samples
- 5 ★1
- 4 ★1
- 3 ★1
- 2 ★0
- 1 ★0
- 5 out of 5 stars, in a sample review of Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection
Checked the battery life claim
I compared four of these on paper before ordering, so the line I actually checked was "Battery life". The page says Not applicable, mains powered, and that is what turned up. 2.5K at f/1.4 is a real step up in low light over 1080p cameras.
Rohit B.Sample2 found this helpful - 4 out of 5 stars, in a sample review of Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection
Holding up so far
Had this a couple of weeks now, so this is not an unboxing opinion. Records to NAS over SMB as well as microSD, with no subscription. Still mildly irritated by one thing: No Apple HomeKit support. Known trade-off rather than a fault, though, and I would buy it again.
Naveen I.Sample7 found this helpful - 3 out of 5 stars, in a sample review of Xiaomi Smart Camera C400 2.5K Indoor Pan and Tilt with AI Detection
Fine, once I adjusted my expectations
Leading with the problem, because it is what I would have wanted to read: No Apple HomeKit support. Indoor only. Neither is hidden — both are listed on the page — but they matter more in daily use than they look on a spec sheet. I have kept it, for one reason: 2.5K at f/1.4 is a real step up in low light over 1080p cameras. That still outweighs the rest, but only just.
Farhan T.Sample21 found this helpful
The research behind this page
Independent guides that work through the numbers on this kind of product.