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

Rating 4.7 out of 5 stars with 71 reviews

$299.99

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

Model: T81721W1
SKU: 6644014
$299.99
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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.
  • 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
  • eufycam S4 camera

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

Q: Does this one plug in for 24 hour recording?

A: You can plug this into an outlet via a very long USB-C cable and you can use it for 24 hours surveillance recording

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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.

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Pros for eufy - eufyCam S4 Triple Lens Wireless Solar Security Camera with 360° View, Auto Tracking, No Monthly Fees - White
Battery Life, Video Quality, Tracking Performance, Setup Ease, CoverageOverall Performance, Battery Life, Camera Quality, Ease of use, Motion DetectionOverall Performance, Audio Quality, Solar ChargingOverall Performance
Cons for eufy - eufyCam S4 Triple Lens Wireless Solar Security Camera with 360° View, Auto Tracking, No Monthly Fees - White
SizeConnectivity, App Performance, Customer Support, AI TrackingThere were no cons for this productThere were no cons for this product

Specs

Reviews

Customers are saying

Customers frequently mention the excellent picture quality of the eufyCam S4 Triple Lens Wireless Solar Security Camera. In general, customers seem to be happy with the product, as there were no cons mentioned in the provided data.

This summary was generated by AI based on customer reviews.

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.

  • Rated 5 out of 5 stars

    Camera

    I absolutely love the camera. It could use a better zoom. My family can all be connected at one time. The others i had always logged one of us out. I am buying more in the next few months. I have some going closer to my luvestock

    ThomasB Posted

  • Rated 5 out of 5 stars

    Best security camera for the price!

    It’s an amazing security camera, my favorite feature is the AI with the auto zoom. The best part NO SUBSCRIPTION!! Best night vision and because it has two cameras you can always see what’s going on even if the other camera zooms in.

    Felipe Posted

  • Rated 5 out of 5 stars

    Solar Powered 360° Protection

    eufyCam S4 Triple Lens it's kind of become one of those gadgets I forget even exists in a good way. It's just sitting there, and it's just doing its business, and then only pops into my life when something needs to be informed or i wish to see the live feed.Right out of the box, the camera is sturdy and well made not flimsy or cheap. The triple lens set up looks a bit futuristic compared to your normal one lens cameras, but it's not weird or ugly. The solar panel that comes with this is nicely integrated as well, which doesn't appear to look like you bolted a random science project to your walls. Setup is very straightforward, Download eufy Security app.  Scan the QR code on the camera.  Connect it to Wi-Fi.  Mount it where you want it. The only "hard" part was where to put it so the solar panel can get good sun, and the camera has a view. Once I chose a location for it, it was a matter of installing it which just included a couple screws and small angle fixes. Power and solar performance One of the primary factors driving my choice of this camera were the combo wireless plus solar. I really didn't want to be running cables around walls or remembered to wriggle the camera down to the recharge it every few months. At least to date the solar panel has done exactly what it's supposed to do. The battery essentially remains full despite having a fair amount of motion. On sunny days, I can actually literally watch the battery percentage go up in the app. On cloudy or rainy days it might dip a little but the battery is big enough it's never come close to dying.If you live somewhere super dark and gloomy for half the year it may be different with you, but under more normal conditions it's pretty much Set it and Forget it. Video Quality and Triple lens coverage The triple lens set-up is the main achievement here. Rather than using one lens that attempts to do everything, the S4 makes use of multiple lenses to cover a greater area to keep things sharp. You get all this wide field of view -almost a 360 degree field of view due to the way you use that.  Way fewer blind spots. I have this one camera that I can see my driveway, front walk, part of my yard, and from this one camera.  It can change lenses/focal lengths to keep people and cars clear when they walk about. Daytime video looks great sharp, clear and normal looking colors. Zooming in on a person or a license plate actually is useful, At night, it still holds up well especially if you've got some ambient light, like a porch or street light. It's miles better than these cheap cameras where everything becomes just a blob of grey color. 360deg view and auto-tracking The combo of a near 360 degree coverage AND auto-tracking though, is where the smartness instead of the gimmick is found.When a person walks on the property, the camera locks on his or her person and moves completely around them.  Right so, if a car pulls into the driveway, it's then tracking it and it ends up focused right where the driver gets out which is where you want to be for video.  In the app, you can swipe around the live view in the same way as a PTZ camera if you are inclined to manually look around, but most of the time the auto-tracking does it. It's not perfect - if there are several people, or cars for that matter, appearing at the center simultaneously, it's going to choose one to follow and may miss the others but for one person, or vehicle, it's a pretty good job. You are also able to dial up the sensitivity or dial it down to make sure that the surveillance device is not freaked out every time a tree branch moves. Motion detection and alerts Motion detection is one of those things which you don't really appreciate until you live with the camera for a few days. The S4 does a nice job here. It can distinguish between people and random motion and it often recognizes vehicles as well.  You can set up activity zones, and so it's not the car that drives by on the street every second bugging you.  Sensitivity is adjustable, which is helpful in reducing false alarms due to shadows, bugs or plants. Person detection has worked for me. I get a ping when somebody walks up to the door, walks up through the driveway, but I'm not getting that every time there's a bird flying past. Notifications are pretty quick usually within a couple of seconds so if someone rings the doorbell I can tap the notification and I will still see them there live. Experience in the App and Local storage The eufy Security application is in a good place right now. It's clean and easy to navigate and the important stuff is not buried under a million menus. Timeline view: Scroll through your day and tap on any one of the events so that you can watch it immediately.  Filters: Quickly change "person", "vehicle" or "all motion" to learn more about what it is that you are interested in.  Live view controls - controls to pan, tilt and zoom as well as turn auto-tracking on and off at any time.  Notifications: Change tones to suit your preferences, eliminate noise during quiet hours as well as choose which nots you really want. One of the thing i like is local storage and no forced subscription. Eufy allows you to store clips locally (either built-in storage or hub) instead of forcing you into a monthly cloud storage just to have access to your own footage. If your fed up with all your devices asking for a subscription this is a breath of fresh air. Privacy and security With any security camera there is always that tipping point between security and privacy. Eufy is quite heavy handed when it comes to local storage and encryption, so it does not feel like you are just streaming your life into some random cloud forever. If privacy is a big issue, you'll still want to give the rules a read, but day to day, it does feel more private than the cloud-only brands. What I'm really into: Super wide covering with triple-lens and near 360 degree view.  Auto-tracking which is useful, not just for bragging points on the box  Solar power, so you almost have never to think about charging.  Good quality of the video in day and night.  Local storage, no needs for subscription  Smart motion detection and person vehicle recognition and activity zones.  Clean up app with fast and reliable notifications. What could be better: You do require a sensible amount of sunlight if you are hoping for the battery to both remain fully topped up (especially in busy areas).  Auto-tracking may get lost on a subject with much going on.  The camera is larger than the basic single lens ones  so you do have to be a little strategic if you want it to keep a low profile. The eufyCam S4 Triple Lens Wireless Solar Security Camera is what you can feel like a legit upgrade from basic cams. You get smarter coverage, better tracking, good video and quantified close to no hassle with power or subscriptions. It's not the cheapest thing out there and it's not perfect but it hits a really nice sweet spot between performance, convenience and long term cost. If you are looking for a camera that covers a wide area, follows movement intelligently, and for the most part just minding its own business in the background, the S4 is an easy one to recommend. After a week or two, it is no longer as if it is a gadget, but part of the house and that is exactly what you want from a security camera.

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