Eufy NVR Security System S4
Description
The Eufy S4 NVR Security System delivers full‑property protection with advanced AI, powerful tracking, and seamless multi‑camera coordination. With a mix of 4K turret cameras for fixed coverage and innovative 2‑in‑1 Bullet‑PTZ cameras for active tracking, the S4 gives you complete visibility across every angle of your home.
Its intelligent Pan‑Tilt‑Zoom tracking locks onto movement and follows subjects automatically, while cross‑camera handoff ensures uninterrupted monitoring as they move across zones. The built‑in AI agent provides instant threat analysis, smarter alerts, and rapid event identification—all processed locally for speed and privacy.
With an expandable 8‑port NVR, up to 16 channels, and a pre‑installed 2TB HDD (upgradeable to 16TB), the S4 is built for 24/7 recording and long‑term reliability. This is whole‑home security engineered for clarity, intelligence, and complete control.
KEY FEATURES
Complete 4‑Camera Protection Secure your entire property with two 4K turret cameras for fixed coverage and two hybrid Bullet‑PTZ cameras featuring an upper 4K wide‑angle lens and a lower 2K PTZ module. Enjoy 360° tracking, 8× zoom, and precise monitoring across every zone. (Update your Eufy app to version 5.0.71 or above for full functionality.)
Dynamic Tracking & Auto‑Framing When motion is detected, the PTZ camera locks on and follows the subject automatically—delivering sharp, centred close‑ups from up to 50 m away. Auto‑zoom keeps them perfectly framed until they leave view.
Live Cross‑Cam Tracking Your S4 cameras work together to maintain continuous coverage. As a subject moves out of one camera’s range, another instantly takes over, ensuring uninterrupted monitoring around your home.
AI‑Powered Video Finder Find key moments instantly using keyword search in the Eufy app—no more scrolling through hours of footage.
Expandable NVR System The 8‑port NVR supports up to 16 channels via a PoE switch (not included). Configure up to 8 Bullet‑PTZ cameras (each uses two channels) or up to 16 turret/bullet cameras. Includes a pre‑installed 2TB HDD, upgradeable to 16TB for round‑the‑clock recording.
On‑Device AI Agent An ultra‑fast 8‑core CPU powers real‑time analysis, accurate threat detection, and smart responses. Customisable No‑Go Zones and alert rules ensure the system focuses only on what matters. Cloud‑based features such as cloud storage or thumbnail push notifications may send thumbnails or video clips to the cloud as required.
Refund Policy
Returns & Refund Policy
At SereniLiving, we want to ensure that any issues with faulty or defective products are handled appropriately. Please read our returns policy carefully before making a purchase.
Change of Mind Returns
We do not accept returns or provide refunds for change of mind, including where a customer no longer wants or requires the product after purchase.
Please review the product description, specifications and compatibility carefully before placing your order.
Faulty, Damaged or Incorrect Items
Please inspect your order as soon as you receive it.
If your product is faulty, defective, damaged on arrival, or you have received an incorrect item, please contact us within 14 days of receiving your order so that we can assess the issue and provide an appropriate resolution.
To report an issue, please contact:
Please provide your order details, a description of the issue and, where applicable, photographs or other evidence showing the fault or damage.
Returning a Faulty Product
Returns must first be authorised by SereniLiving. Please do not send any product back before contacting us and receiving return instructions.
Once your return request has been reviewed and accepted, we will provide you with the appropriate return address and instructions.
The customer is responsible for the cost of returning the item to us.
Items returned without prior authorisation may not be accepted.
Manufacturer Warranty
Products are covered by the applicable manufacturer warranty.
Where an issue occurs outside the initial 14-day faulty return period but is covered by the manufacturer's warranty, the claim will be handled in accordance with the relevant manufacturer's warranty terms and conditions.
Warranty coverage, duration and exclusions may vary depending on the product and manufacturer.
Non-Returnable Items
Except where a product is faulty or where otherwise required by applicable law, we do not accept returns for:
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Change of mind
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Products that are no longer wanted or required
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Sale or clearance items
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Gift cards
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Products damaged through misuse, improper installation, accidental damage or failure to follow the manufacturer's instructions
Refunds
Once we receive and inspect an authorised faulty return, we will notify you whether your refund has been approved.
If approved, the refund will be issued to your original payment method. Please allow up to 10 business days for the refund to be processed. Your bank or card provider may require additional time for the refund to appear in your account.
If more than 15 business days have passed since your refund was approved, please contact:
Contact Us
For questions regarding returns, faulty products or warranty claims, please contact us at:
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