Eufy 4G LTE Cam S330 White: Off-Grid 4K Security Camera with Solar Power
The Eufy 4G LTE Cam S330 White is a solar-powered outdoor security camera that runs on 4G mobile data or Wi-Fi. Because it switches to a cellular network when Wi-Fi drops, it keeps watching a remote gate, farm, or building site where broadband does not reach. For property owners who need eyes on a location far from mains power and a router, the S330 White records 4K footage day and night without trailing cables.
This wireless surveillance camera solves a specific problem. Most home cameras die the moment the power or internet fails. The Eufy 4G LTE Cam S330 White instead pairs a 9,400 mAh battery with a 5 W solar panel, so it stays online through outages. Additionally, the pan-and-tilt head and AI tracking follow people and vehicles across a wide area, which suits open plots and perimeters.
Technical Specifications
Camera and Imaging
| Specification | Detail |
|---|---|
| Resolution | 4K UHD (3840 x 2160), 8 MP |
| Lens field of view | 130° |
| Pan range | 340° |
| Tilt range | 70° |
| Night vision | Infrared and full-colour |
| Spotlight | 100 lumens, colour vision up to 8 m |
| Zoom | 8x digital (no optical zoom) |
Connectivity
| Specification | Detail |
|---|---|
| Mobile network | 4G LTE (no 5G) |
| Wi-Fi | 2.4 GHz |
| SIM | Nano SIM, 3-in-1 SIM included (region-specific) |
| Smart assistants | Amazon Alexa, Google Assistant |
| Apple HomeKit | Not supported |
| Hub compatibility | Works with HomeBase 3 / S380 over Wi-Fi |
Power and Battery
| Specification | Detail |
|---|---|
| Battery | 9,400 mAh (36.2 Wh) |
| Solar panel | 5 W (included) |
| Solar to run | About 2 hours of daily sun for continuous power |
| Battery life | About 1 month on typical use without solar |
| Charging port | USB-C |
Storage and Detection
| Specification | Detail |
|---|---|
| Local storage | 32 GB microSD included, expandable to 128 GB |
| Cloud storage | Optional Eufy subscription |
| Detection | Person, vehicle and motion (PIR + AI) |
| Audio | Two-way audio with mic and speaker |
Physical and Environmental
| Specification | Detail |
|---|---|
| Weather rating | IP65 (dust and water resistant) |
| Operating temperature | -20 °C to 50 °C |
| Colour | White |
| Model number | T86P2121 |
Use Cases and Applications
The Eufy 4G LTE Cam S330 White fits places that ordinary cameras cannot reach. Farms and smallholdings can monitor a gate, water tank, or equipment shed far from the house. Building sites can watch materials overnight without running power to a temporary structure. Furthermore, holiday homes and rural plots gain a live feed even when nobody is on site and Wi-Fi is absent.
For homes with patchy broadband, the hybrid connection acts as a safety net. If the router fails, the camera keeps streaming over mobile data. So you still receive motion alerts and live video during an outage. The solar panel suits sun-rich regions well, since steady daylight keeps the battery charged through the year.
Considerations Before Buying
A connect-anywhere camera comes with trade-offs worth weighing. The S330 White runs on 4G only, so it does not use faster, more secure 5G networks. It also relies on digital zoom rather than an optical lens, which softens detail when you zoom far in. Additionally, the camera skips Apple HomeKit, so iPhone users who centre their setup on Home will miss native support. Cloud backup needs a paid subscription, though the bundled microSD card keeps local recording free. Finally, the 4G feature needs an active data plan, and the included SIM is tied to its origin region.
Frequently Asked Questions
Does the Eufy 4G LTE Cam S330 White need Wi-Fi?
No. The camera works over 4G mobile data on its own. However, it can also use a 2.4 GHz Wi-Fi network and switches between the two automatically.
How long does the battery last?
On typical use the battery lasts about one month without any solar input. With roughly two hours of daily sunlight, the 5 W panel can keep it running continuously.
Do I need a subscription?
No. The included 32 GB microSD card stores footage locally with no monthly fee. A Eufy cloud subscription is optional if you want off-site backup.
Does it work with Apple HomeKit?
No. The S330 White supports Amazon Alexa and Google Assistant, but it does not work with Apple HomeKit.
Can it identify a number plate at night?
Yes. The 4K sensor and 100-lumen spotlight capture colour detail in the dark. You can read a number plate from about 10 m away in good conditions.
Related Products
Read more on the official eufy 4G LTE Cam S330 page.
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