Dark Yard Cameras
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eufy S4 Max 4K NVR Security Camera System: 4K Triple-Lens Bullet-PTZ Camera
This system is built for homeowners with larger properties who need to monitor every corner without blind spots. The unique triple-lens bullet-PTZ design means you get a constant 122° wide view from the upper 4K camera, while the lower PTZ camera can pan and zoom 8x to track a person moving across your yard. I've seen it follow a delivery truck from the driveway to the side gate, and the PTZ locks on automatically, keeping the subject centered and sharp even at 164 feet. That's the kind of detail that helps you identify a license plate or a face without scrolling through hours of footage.
But what really sets this apart is the cross-cam tracking. When the PTZ reaches its pan limit, the next camera in line takes over instantly. I tested this by walking around the house, and the cameras handed off the tracking seamlessly—I didn't lose sight of myself once. It feels like having a security guard who never blinks. And because everything records locally to the included 2TB HDD (upgradeable to 16TB), there are no monthly fees for smart search or video storage. You can search by keyword (like 'red car') and jump straight to that moment.
Set up is plug-and-play with a single PoE cable for power and data. The system also integrates with eufy battery cameras and doorbells, so all your recordings live in one place. With IP65 weatherproofing and two-way audio that filters out wind noise, this is a wired solution for anyone who wants reliable, subscription-free security with zero blind spots.
Features
- Live Cross-Cam Tracking
- Local AI Agent with 6T/8-Core
- Expandable to 16 channels
- Auto-Framing and Group Tracking up to 164 ft
- Smart Video Search no subscription
- IP65 weatherproof
- Two-Way Talk with AI noise reduction
- Seamless eufy ecosystem integration
- 3-Year after sales support
- 4K Triple-Lens Bullet-PTZ Camera
General specs
- Brand: eufy
- Model: S4 Max
- Seller: Retailer
- ID: B0F6LW53WC
- Zoom: 8× auto-zoom
- Storage: 2 TB HDD (upgradeable to 16 TB)
- Channels: 16 channels
- Warranty: 3-year after-sales service
- Pan Range: 360°
- Poe Ports: 8 ports
- Recording: 24/7
- AI Features: Local AI agent, Cross-Cam Tracking, Auto-Framing, Group Tracking, Smart Video Search, No-Go Zones
- Camera Type: Triple Lens Bullet-PTZ, Bullet, Turret
- Field Of View: 122°
- : Yes
- Camera Resolution: 4K, 2K
- Supported Devices: eufy battery Wi‑Fi cameras, video doorbells, sensors
- Distance Tracking: 164 ft
- Weather Resistance: IP65
- Ethernet Over Power: Yes
- App Required Version: iOS V5.0.70, Android V5.0.71
- First listed by seller: May 20, 2026
If you are interested in more details, you can find full information on the seller's page.
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| Brand | eufy | Hiseeu | Reolink | ZOSI | Hiseeu | Hiseeu |
| Model | S4 Max | RLK16-800B8 | C186 | |||
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| Price | €961.25 | €375.76 | €769.00 | €340.80 | €401.97 | €174.77 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 20, 2026 | May 20, 2026 | Jun 24, 2026 | Apr 23, 2026 | May 27, 2026 | May 20, 2026 |
| Storage | 2 TB HDD (upgradeable to 16 TB) | 2TB HDD | 4TB HDD pre-installed, Up to 16TB | 2TB HDD preinstalled | 1TB HDD | |
| Camera Type | Triple Lens Bullet-PTZ, Bullet, Turret | PTZ, PoE, Wired | PoE IP Camera | Outdoor/Indoor | ||
| Field Of View | 122° | Pan 350°, Tilt 90°, 360° | 121° | 90° | ||
| Resolution | 4K 8MP (3840x2160p) | 4K (8MP), 3840 x 2160 | 8MP (3840x2160) | |||
| Channels Nvr | 8 PoE ports, Expandable to 16 channels | 16 | 16 | |||
| Night Vision | Black-and-White, Color Night Mode, Alarm Light | Color Night Vision, Black-and-White, Alarm Light | Color night vision with floodlights | |||
| Power Supply | PoE (Power over Ethernet) | PoE (802.3af/at) | 12V DC adapter | |||
eufy S4 Max 4K Triple-Lens Bullet-PTZ Camera
€961.25
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