eufy Security eufyCam S4 2-Cam Kit,4K Solar Camera Wireless Outdoor, Triple Lens Bullet-PTZ Cam, 360° View, Cross-Cam Track, Al Recognition, 8X Zoom, Color Night Vision, 0 Monthly Fee, Local Storage
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AI Verdict
This is a feature-packed 4K bullet and 2K PTZ solar-powered camera system with local storage, but its software and continuous power reliability can be frustrating.
This camera offers a unique combination of 4K fixed and 2K PTZ lenses with solar charging, making it a strong contender for specific outdoor surveillance needs. However, its reliance on the HomeBase S380 for full functionality and reported software inconsistencies, particularly with continuous recording and AI accuracy, mean it's not a universal solution.
If 24/7 continuous recording is non-negotiable, look for cameras with dedicated wired power options that bypass battery usage entirely, or consider an NVR system.
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Pros
- The upper 4K bullet lens provides a 130° fixed wide view, while the lower 2K dual-lens PTZ offers 360° smart tracking and 8x hybrid zoom, capturing details up to 164 ft away.
- SolarPlus 2.0 with a 5.5W ultra-large solar panel keeps the camera charged year-round with just 1 hour of direct sunlight daily.
- BionicMind AI, when paired with HomeBase S380, differentiates family from strangers and provides human, vehicle, and pet detection.
- Local storage is available with 16 GB built-in on the HomeBase S380, expandable up to 16 TB, and the camera itself has 32 GB built-in, expandable up to 256 GB via microSD.
- Precise motion alerts are delivered by radar and PIR sensors, and a 105 dB siren with red and blue warning lights deters intruders.
- Video quality is clear in both day and night, with color night vision available through spotlights.
Cons
- The USB cable for continuous power is only 4.5 meters long, often requiring extensions, and the camera-end plug can crimp due to tight housing.
- The camera may drain its battery even when plugged in for 'Direct Power' mode, preventing true 24/7 continuous recording.
- AI recognition can be inaccurate, misidentifying family members, detecting children as pets, or triggering on spiderwebs.
- Live View often shows 'Connection Failed' errors despite the camera appearing 'Online,' and 24/7 recording can randomly stop for hours.
- Setting up motion and privacy zones is fiddly and must be done separately for both the fixed and PTZ cameras.
- The camera does not charge below 40°F (4.4°C), impacting year-round solar efficiency in colder climates.
Dimension Scores
Radar and PIR sensors provide precise motion alerts, but BionicMind AI has reported inaccuracies in differentiating between people and pets.
It features ultra-stable wireless connectivity with a dual antenna design and Alexa control, but some users report 'Connection Failed' errors for Live View.
The eufy app enables smart tracking and AI features, but setting up motion and privacy zones is described as fiddly.
The camera is designed for outdoor use and resists water vapor and UV damage, but it's a large unit and solar charging stops below 40°F.
Best For
- Homeowners needing comprehensive outdoor coverage with a single device that combines wide-angle and tracking capabilities.
- Users prioritizing local storage and avoiding monthly subscription fees for security footage.
- Properties with consistent daily direct sunlight for optimal solar charging performance.
- Those already invested in the eufy ecosystem with a HomeBase S380 for advanced AI features and storage expansion.
Not Recommended For
- Users in cold climates where temperatures frequently drop below 40°F, as solar charging becomes ineffective.
- Anyone expecting flawless, always-on 24/7 recording without potential battery drain issues, even when hardwired.
- Individuals who need highly accurate AI recognition for specific family members or pets without frequent misidentifications.
- Those who prefer a discreet security camera, as its size and design are quite noticeable.
Watch Out For
- The camera's USB cable is only 4.5 meters long, which often necessitates an indoor extension for continuous power, and the plug can crimp at the camera connection.
- Even when set to 'Direct Power' mode, the camera's battery can still drain, preventing reliable 24/7 continuous recording.
- AI recognition is not always accurate; one user reported their son being detected as a pet, and spiderwebs triggering motion alerts.
- Users experience 'Connection Failed' errors for Live View and random stoppages of 24/7 recording for hours, even with a strong network.
- The camera will not charge via solar power when temperatures drop below 40°F, requiring manual battery removal and charging.
Full Specifications
| UPC | 194644245771 |
| ASIN | B0FH2W7XWH |
| Brand | eufy Security |
| Color | Black+White |
| Shape | Bullet |
| Batteries | 1 Nonstandard Battery batteries required. |
| Room Type | Outdoors |
| Zoom Type | Hybrid Zoom |
| Department | All Ages |
| Focus Type | Auto Focus |
| Frame Rate | 30 frames_per_second |
| Model Name | eufyCam S4 2+1 |
| Unit Count | 1.0 Count |
| Form Factor | Bullet |
| Item Weight | 10.85 pounds |
| Manufacturer | eufy |
| Power Source | Battery Powered |
| Battery Power | 44.3 Watt Hours |
| Mounting Type | Wall Mount |
| Controller Type | Amazon Alexa |
| Number of Items | 1 |
| Installation Type | Screw In |
| Item model number | T8172 |
| Compatible Devices | Smartphone |
| Product Dimensions | 16.5 x 9.8 x 8.3 inches |
| Batteries Required? | Yes |
| Included Components | 1 × HomeBase S380, 1 × Quick Start Guide, 2 × Camera, 2 × Rechargeable Battery, 2 × Solar Panel |
| Indoor/Outdoor Usage | Outdoor |
| Video Capture Format | MP4 |
| Connectivity Protocol | Ultra-stable wireless connectivity with dual antenna design |
| Water Resistance Level | Water Resistant |
| Connectivity Technology | Ultra-stable wireless connectivity with dual antenna design |
| Video Capture Resolution | 4K + Dual 2K |
| Item dimensions L x W x H | 16.5 x 9.8 x 8.3 inches |
| Specific Uses For Product | Surveillance, Indoor/Outdoor Monitoring |
| Recommended Uses For Product | Monitor garage, pets, packages and side/front/backyard |
| Wireless Communication Technology | Wi-Fi |
| Global Trade Identification Number | 00194644245771 |
What Buyers Say
The biggest headache for users seems to be the camera's power management when attempting continuous recording; despite being able to plug it in, the battery often drains, making 24/7 recording unreliable. The AI, while advertised as smart, frequently misidentifies subjects, leading to frustrating false alerts or missed detections. Setting up specific detection zones in the app is also a chore, requiring separate configurations for each lens. Plus, if you live somewhere cold, that solar panel becomes useless for a good chunk of the year.
“Man, I bought this for the 24/7 recording and solar, but it just keeps draining the battery even when plugged in! What's the point? And the AI thinks my dog is a person half the time. So frustrating.”
Common Praise
- Video quality is clear, with 4K from the fixed lens and 2K from the PTZ, providing detailed footage day and night.
- The solar panel effectively keeps the camera charged with minimal direct sunlight, reducing the need for manual charging.
- The bullet-to-PTZ tracking and auto-framing feature works well, keeping subjects in view and zooming in on details up to 164 ft.
- Local storage on the HomeBase S380 (expandable up to 16 TB) means no mandatory monthly fees.
- The 105 dB siren and red/blue warning lights are effective deterrence mechanisms.
Common Complaints
- The camera's battery drains even when connected to direct power, preventing consistent 24/7 continuous recording.
- AI detection frequently misidentifies people, pets, and even inanimate objects like spiderwebs.
- Users experience 'Connection Failed' errors when trying to access Live View, despite the camera showing as online.
- Solar charging stops working when ambient temperatures drop below 40°F (4.4°C).
- Setting up motion and privacy zones is a tedious process, requiring individual configuration for both the fixed and PTZ lenses.
- Downloaded video clips from the app are not always in the full 4K resolution recorded by the fixed lens.
Ownership Tips
- The included USB cable is short (4.5 meters), often requiring an extension, and the camera-side plug is awkwardly tight.
- The camera is physically large and noticeable, not blending into surroundings easily.
- Even with a strong Wi-Fi signal, Live View can be unreliable, showing 'Connection Failed' errors.
- The battery needs to be manually removed and charged if temperatures consistently fall below 40°F, as solar charging ceases.
- The combined video format means you don't get a separate 4K file from the fixed lens, which is a missed opportunity for full resolution.
Frequently Asked Questions
Does the eufyCam S4 require a HomeBase?
The eufyCam S4 can work independently with 32 GB built-in storage, but you need a HomeBase S380 for BionicMind AI features, 24/7 recording, and expanded storage up to 16 TB. Other HomeBase models are not supported.
How effective is the solar charging?
The 5.5W solar panel with SolarPlus 2.0 can keep the camera charged year-round with just 1 hour of direct sunlight per day. However, it will not charge if the temperature falls below 40°F (4.4°C).
What resolution does the camera record in?
The upper bullet lens records in 4K, and the lower PTZ lens records in 2K. When combined, the video files are 2688 x 3040 pixels, meaning each view is 2688 x 1520 pixels at 15 fps, so the fixed lens isn't saved in full 4K separately.
Can I use continuous recording?
24/7 continuous recording is possible when connected to direct power and paired with a HomeBase S380 (updated to V3.7.2.8+). However, users report issues with the battery draining even when plugged in, preventing reliable continuous recording.
How accurate is the AI detection?
The BionicMind AI can differentiate between humans, vehicles, and pets. However, some users report misidentifications, such as children being detected as pets or spiderwebs triggering motion.
Buying Guide
When you're looking at outdoor security cameras, you need to think about how it gets power and where it stores video. Solar power is awesome for not running wires, but it's not foolproof, especially in bad weather or cold. Local storage means you own your footage and skip monthly fees, but make sure the capacity is enough for your needs. Also, 'smart' features like AI detection sound cool, but check if they actually work well in real life, or you'll just get a bunch of useless alerts.
Triple-Lens Bullet-PTZ Camera (4K bullet, 2K PTZ)
This isn't just one camera; it's like having two security guards in one. The 4K bullet lens watches a wide, fixed area, while the 2K PTZ lens can pan, tilt, and zoom to follow movement, giving you both a broad overview and close-up details without blind spots. Think of it as a wide-angle shot plus a telephoto lens, all in one device.
Solar-Charging with SolarPlus 2.0
This means the camera recharges itself using sunlight, so you don't have to climb a ladder every few months to swap batteries. It's like having a tiny, self-sustaining power plant on your house, as long as it gets at least an hour of direct sun daily.
Local Storage (16 GB HomeBase, 32 GB camera, expandable)
Instead of paying a monthly fee to store your video clips in the cloud, this camera saves everything locally on a HomeBase or a microSD card. It's like having a personal DVR for your security footage, keeping your data private and avoiding recurring costs.
Alternatives
If this camera's software issues or cold weather limitations are deal-breakers, look for systems with dedicated wired power for guaranteed 24/7 recording, or consider cameras with more mature AI algorithms for better detection accuracy.
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