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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchXiaomi has launched the Smart Outdoor Camera 4 4G in China, an outdoor security camera designed for sites where installing Wi‑Fi is impractical. Announced on January 28, 2026, it combines built-in 4G connectivity with two reported 5-megapixel cameras: a wide-angle lens for broader coverage and a telephoto lens for distant detail. The reported China launch price is 379 yuan, roughly US$53 at the time of coverage—not a confirmed US retail price.
For construction sites, rural properties, gates, storage yards, and detached buildings, the main attraction is simple: the camera can transmit footage over a compatible cellular network instead of depending on a nearby router. However, international availability, LTE-band support, SIM requirements, power details, and data-plan terms remain unconfirmed.
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What Xiaomi launched
The Xiaomi Smart Outdoor Camera 4 4G is a China-market outdoor security camera with an integrated 4G LTE connection. Unlike a conventional Wi‑Fi camera, it is intended to send alerts and video through cellular coverage, which can make it useful at locations where broadband or wireless networking has not yet been installed.
That does not make it completely independent. The installation would still need suitable 4G coverage, a compatible cellular configuration or plan, reliable power, and access to the appropriate Xiaomi Home or Mi Home app service. The available launch information does not confirm the SIM format, supported LTE bands, or whether the China version works with accounts and carriers in other regions.
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Launch coverage reports a China price of 379 yuan. A second summary of the launch describes similar use cases, including rural properties and construction locations.
Why 4G can help on a construction site
A cellular camera can avoid several temporary-site networking problems:
- New-build sites: monitoring can begin before permanent internet service is installed.
- Remote compounds: a gate, equipment yard, barn, or storage area may be beyond the reach of a home router.
- Temporary projects: the camera can potentially move with the site rather than requiring a fixed wireless bridge.
- Detached structures: cellular connectivity avoids running network cable between buildings.
The trade-off is that cellular performance depends on the exact mounting location. Concrete, steel structures, underground areas, weak rural coverage, congestion, roaming restrictions, and carrier incompatibility can all prevent stable live viewing. A phone showing a signal does not guarantee that the camera will have enough upload capacity for continuous video.
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The reported design uses two 5MP sensors, with one wide-angle camera and one telephoto camera. Both lenses are reported to have an f/1.6 aperture and support 3K recording.
The practical distinction is between coverage and detail. The wide-angle view is better suited to watching a larger area such as a site entrance or equipment yard. The telephoto view is intended to show a more distant subject more closely. Using separate lenses may reduce the usual compromise between seeing a broad scene and maintaining useful detail at the far end of it.
However, the dual-camera description should not be interpreted as proof of a single seamless optical-zoom image or automatic pan-and-tilt coverage. The available launch information does not establish the telephoto focal length, fields of view, optical-zoom ratio, frame rate, codec, or whether both cameras record simultaneously in every mode.
The telephoto lens may improve the view of distant faces, vehicles, or movement, but Xiaomi has not supplied independent testing in the available coverage. It should not be treated as a verified license-plate-recognition system.
What 3K and f/1.6 do—and do not—tell you
3K recording suggests a higher maximum resolution than standard 1080p, but the source does not clarify whether 3K applies to both cameras simultaneously, every recording mode, or only a particular stream. Frame rate, bitrate, HDR support, and compression are also unspecified.
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An f/1.6 aperture can admit more light, but it does not guarantee strong night footage. Night performance also depends on sensor size, infrared illumination, image processing, shutter speed, and subject movement. No independent image-quality or low-light testing was located in the available material.
Security and smart-home features
Reported features include:
- AI detection for humans and vehicles.
- Two-way voice communication.
- Active Defence using sound and light alarms.
- Support for Xiaomi HyperConnect.
- IP66 dust and water resistance.
Human and vehicle classification can help reduce some irrelevant alerts, but it is not the same as reliable threat identification. Shadows, headlights, rain, foliage, insects, animals, occlusion, poor positioning, and low light can still produce false alerts or missed detections.
The available information does not say whether detection takes place locally on the camera or through a cloud service. Alert-zone controls, person or vehicle recognition, siren volume, light intensity, and customization options are also unconfirmed. Two-way audio could be useful for speaking to a delivery driver or warning someone away from an equipment area, but audio quality and cellular delay have not been independently tested.
IP66 is outdoor protection, not submersion protection
IP66 indicates protection against dust ingress and powerful water jets under defined test conditions. It does not mean the camera can be submerged, is immune to condensation, or needs no care during installation.
For an exposed construction or agricultural site, installers should still consider:
- Routing cables so water cannot run directly into a connector.
- Using properly sealed cable joints and outdoor-rated power equipment.
- Avoiding locations where water pools or snow accumulates.
- Allowing for direct sunlight and heat buildup.
- Checking the manufacturer’s operating-temperature range before installation.
- Mounting the camera high enough to deter tampering while preserving the telephoto view.
The product’s operating-temperature range and detailed installation requirements were not provided in the available launch reports.
Data-plan and power caveats
Launch coverage mentions a free unlimited data offer. That claim should be treated as a China-market launch detail pending Xiaomi’s terms. Its duration, geography, eligible traffic, and whether it covers all video use are not established. A bundled data offer is not automatically the same as lifetime cellular service or subscription-free cloud storage.
4G also does not describe the camera’s power source. The available information does not confirm whether this model is mains-powered, battery-powered, solar-compatible, or sold with a particular adapter. Cellular uploads and live viewing can increase power consumption, so a remote installation may need protected mains power, battery backup, or a separately verified solar arrangement.
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Price and availability
The reported launch price is 379 yuan in China. The often-quoted figure of about US$53 is only an approximate currency conversion and should not be used as a US retail price.
No confirmed US or global launch, official international purchase listing, LTE-band list, carrier compatibility information, international warranty, or roaming policy was identified in the available coverage. Xiaomi’s global website is the appropriate place to check for a regional announcement, but a China listing should not be assumed to work elsewhere.
Potential import buyers should verify all of the following before ordering:
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- Whether the camera accepts a local SIM or requires a Xiaomi-specific connectivity service.
- Which LTE bands it supports and whether a local carrier uses them.
- Whether Xiaomi Home or Mi Home supports the device in the buyer’s account region.
- Whether the data offer works outside China and how long it lasts.
- Whether warranty service is available in the destination country.
- How footage is stored and exported.
Who should consider it?
The camera is most interesting for buyers who need temporary or remote visual monitoring and already have dependable compatible 4G coverage. A construction manager might use that category of camera to watch a gate, materials yard, plant compound, or partially completed building before a permanent network is available.
It is less suitable for anyone who needs confirmed US-carrier support, documented local recording, RTSP or ONVIF integration, NAS compatibility, HomeKit or Matter support, or clearly defined privacy and retention policies. The available information does not verify microSD capacity, cloud-retention rules, encryption, local processing, or footage export without Xiaomi cloud services.
Important unanswered questions
Before treating the Xiaomi Smart Outdoor Camera 4 4G as a ready-to-deploy site-security solution, buyers need official answers about:
- Supported LTE bands, SIM arrangement, and carrier compatibility.
- Power input, power consumption, battery backup, and restart behavior after an outage.
- Whether both cameras record concurrently and how switching works.
- 3K frame rates, codecs, bitrates, and night-vision specifications.
- Storage options, microSD support, cloud dependence, and export controls.
- Account-region restrictions and international privacy terms.
- Operating-temperature limits and complete mounting instructions.
- Global availability, warranty coverage, and the exact terms of the reported data offer.
Until those details are published, the product is best understood as a promising China-market 4G camera announcement rather than a confirmed worldwide alternative to established cellular models. Buyers comparing options may also review the international product ranges from Reolink, Arlo Go 2, and Eufy, while checking each model’s carrier, storage, power, and subscription requirements.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
