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eufy - eufyCam S4 Triple Lens Wireless Solar Security Camera with 360° View, Auto Tracking, No Monthly Fees - White

Model: T81721W1
SKU: 6644014
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$349.99
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Highlights

  • Key Specs
    • Video Camera Resolution: 4K (2160p) (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
    • Field Of View: 130 degrees (The area of a target, measured as an angle from the location of viewing, that can be observed.)
    • Night Vision: true
    • Number Of Cameras Included: 1
    • Camera Power Source: Battery-powered, Solar powered
    • Works With: Amazon Alexa, Google Home, Apple Home (Compatible with or able to be connected to other smart devices or applications.)
    • Wireless Connectivity: Wi-Fi (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
    • Storage Type: Memory card
    • Indoor Or Outdoor Use: Outdoor (Indicates the appropriate environment product was designed to be used in.)
    • Audio Communication: 2-way (1-way communication devices allow a user to hear detected audio, while 2-way communication adds the ability for a user to talk back through the device.)
  • General
    • Brand: eufy
    • Model Number: T81721W1
    • Product Name: eufyCam S4 Triple Lens Wireless Solar Security Camera with 360° View, Auto Tracking, No Monthly Fees
    • Color: White
  • Camera
    • Video Camera Resolution: 4K (2160p) (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
    • Camera Resolution: 3840 x 2160 (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
    • Field Of View: 130 degrees (The area of a target, measured as an angle from the location of viewing, that can be observed.)
    • Night Vision: true
    • Night Vision Distance: 50 feet
    • Night Vision Image: Color
    • Camera Movement: Pan, Tilt
    • Zoom Mode: Optical, Digital
    • Number Of Cameras Included: 1
    • Frame Rate: 15 frames per second (The frequency at which consecutive images can be captured. The higher the frame rate, the more detail that can be captured.)
    • Day/Night Mode: true (Captures images/video with optimal clarity by automatically adjusting settings to various light levels.)
    • Number of IR LEDs: 2 (Quantity of infrared (IR) LED lights for emitting IR light and allowing the camera to detect objects in low light.)
  • Power
    • Camera Power Source: Battery-powered, Solar powered
  • Compatibility
    • App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Compatibility: Compatible with eufy Security HomeBase S380
    • Operating System Compatibility: Apple iOS, Android
    • Works With: Amazon Alexa, Google Home, Apple Home (Compatible with or able to be connected to other smart devices or applications.)
    • Voice Assistant Built-in: Amazon Alexa, Google Assistant (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
  • Connectivity
    • Camera Connectivity: Wireless (Security system cameras can be set up in several ways. Wired cameras require cables for power and footage transmission, while wire-free cameras don't need cables for either. Wireless cameras still require cables for receiving power but are able to transmit footage via a wireless network.)
    • Wireless Connectivity: Wi-Fi (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
  • Storage
    • Storage Type: Memory card
    • Memory Card Type: microSD
  • Performance
    • Indoor Or Outdoor Use: Outdoor (Indicates the appropriate environment product was designed to be used in.)
    • Protective Qualities: Water resistant
  • Features
    • Audio Communication: 2-way (1-way communication devices allow a user to hear detected audio, while 2-way communication adds the ability for a user to talk back through the device.)
  • Dimensions
    • Product Height: 3.62 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 6.48 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 6.5 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 2.76 pounds (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 1 year
    • Warranty - Labor: 1 year
  • Other
    • UPC: 194644269333

Experience clear visibility and zero blind spots with the eufyCam S4 outdoor camera kit. Combining a 4K bullet lens camera for focused views with 2K dual-lens PTZ camera for 360° coverage, you can see more, instantly track people, and zoom in on them up to 164 ft. The solar-powered wireless camera features SolarPlus™ 2.0 for year-round charging with just an hour of sunlight a day. Smarter AI, expandable on-device storage**, and built-in lights with siren stop threats in their tracks—no fees, no compromises.

  • testTri-Lens Tracking with Auto-Framing: testThe fixed bullet lens never misses the big picture, while the PTZ dual lenses instantly locks and zooms on visitors or unwanted guests up to 164 ft, showcasing critical details. When multiple people enter, the camera automatically reframes so everyone stays in view—delivering coverage without blind spots.
  • Year-Round SolarPlus™ Power: Just one hour of direct sunlight a day keeps eufyCam S4 powered thanks to a 5.5 W high-efficiency solar panel.† The SolarPlus™ 2.0 detachable design, praised in reviews for flexibility, makes installation easy on walls, poles, or eaves.
  • Smart and Self-Sufficient: Works right out of the box—no HomeBase S380 required. On-device AI provides fast, reliable human, vehicle, and pet detection. Built-in 32GB storage is expandable up to 256GB, keeping recordings local and private.
  • Even Smarter with HomeBase S380: Unlock additional camera functions if you want to pair outdoor camera with you existing HomeBase S380. Innovative BionicMind™ AI recognizes familiar faces and alerts you to strangers; it also detects and alerts you to people, vehicles, and pets detected. Enjoy large-scale capacity for all your video storage and data with expandable storage up to 16 TB for extra peace of mind.
  • Accurate Alerts, Strong Deterrence: Dual radar + passive infrared (PIR) sensors cut false alarms more accurately over single-sensor systems. When a threat is confirmed, red/blue strobe lights flash and a 105 dB siren activates automatically to send intruders packing.
Whats Included
  • eufycam S4 camera

Q: What is the video resolution of this camera?

A: The video resolution of this camera is 4K (2160p).

Q: Does this camera have night vision?

A: Yes, this camera has night vision with a distance of 50 feet.

Q: Is this camera compatible with Alexa?

A: Yes, this camera works with Amazon Alexa.

Q: Does this security camera require monthly fees?

A: No, this security camera does not require any monthly fees.

Q: How much solar power does the camera use?

A: The camera uses SolarPlus™ Power with a 5.5 W high-efficiency solar panel.

Q: Can this camera be used outdoors?

A: Yes, this camera is designed for outdoor use.

Q: What type of memory card does this camera use?

A: This camera uses a microSD memory card for storage.

Q: Does this camera need the homebase?

A: This camera does not need the homebase. The homebase is simply a large storage device for security videos. I recommend you hook it up to the Apple home app and just use your iCloud storage

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Pros for eufy - eufyCam S4 Triple Lens Wireless Solar Security Camera with 360° View, Auto Tracking, No Monthly Fees - White
Video Quality, Battery Life, Tracking Performance, Setup Ease, AI PerformanceThere were no pros for this productThere were no pros for this productVideo Quality, Battery Life, Overall Performance, Solar Charging, Installation
Cons for eufy - eufyCam S4 Triple Lens Wireless Solar Security Camera with 360° View, Auto Tracking, No Monthly Fees - White
SizeThere were no cons for this productThere were no cons for this productThere were no cons for this product

Specs

Reviews

Customers are sayingCustomers express satisfaction with the eufyCam S4's exceptional video quality, reliable tracking performance, and straightforward setup process. The camera's battery life, AI capabilities, and extensive coverage also receive positive feedback. Users appreciate the motion detection, night vision, solar panel performance and zoom functionality. The only notable concern is the camera's size, which some users find less than discreet.
This summary was generated by AI based on customer reviews.
  • Video Quality (33)
  • Tracking Performance (21)
  • Setup Ease (10)
  • Battery Life (9)
  • AI Performance (6)
  • Size (4)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

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