eufy SoloCam S340 4-Cam Kit Review: 360° solar security without the monthly bill

I’ve been using the eufy Security SoloCam S340 4-Cam Kit with the HomeBase S380 for a bit now, and overall it feels like a solid middle ground between the cheap subscription cameras and the full-blown wired systems. You get four cameras, all wireless, plus the HomeBase that handles storage and some of the AI stuff. The big promise here is simple: no monthly fees, solar charging, 360° coverage. On paper, it ticks a lot of boxes.

In practice, it’s not perfect, but it does most of what it claims. The install really is quick if you already have decent 2.4 GHz Wi‑Fi around the house and you know roughly where you want to place your cameras. The solar panels help a lot if you can give them a few hours of sun per day. Once everything is up, you basically manage it all from the app, which is fairly complete but a bit clunky in some spots, especially account sharing.

What stood out to me right away was the video quality and the pan/tilt. Being able to remotely turn the camera to follow people or vehicles is actually useful, not just a gimmick. Motion detection during the day is strong, at night it’s a bit less sensitive, which matches what some other users said. The fact that all the basic features (motion detection, long clips, AI detection) are free is a nice change from Ring/Blink style setups.

If you’re expecting a magic system that picks up every tiny movement at 100 feet and never drops a connection, you’ll be disappointed. But if you want a wireless, mostly maintenance-free kit that covers a whole property without paying a subscription, this is a pretty solid option. You just need to be ready to play with placement, Wi‑Fi, and the app settings for a few days before it really feels dialed in.

The SoloCam S340 4-Cam Kit is not cheap if you compare it to grabbing a single budget cam off Amazon. The upfront price is on the higher side, and that might sting a bit if you’re just getting into home security. But you have to factor in that there are no mandatory monthly fees. With Ring, Arlo, and others, you often end up paying every month just to keep basic features like motion recording or longer clip history. Here, you pay once, and all the core stuff (motion detection, up to 60s clips, AI detection) is included.

One reviewer even said they couldn’t think of a reason to pay for the optional service because the free features already cover what they need. I’m in the same boat: for a home user, the included feature set is enough. The local storage on the HomeBase means you’re not renting cloud space every month. Over a couple of years, that alone can make this kit cheaper than a lower-priced system that forces you into a subscription.

Where the value can feel a bit weaker is if you don’t really need four cameras or the pan/tilt features. If you just want one or two fixed cameras to watch a door and a driveway, there are cheaper eufy models or other brands that might be fine. The S340 kit makes more sense if you have a larger area to cover or you really want the 360° flexibility and tracking. Also, the need for decent Wi‑Fi and somewhat careful solar placement means you might have to spend a bit more on a Wi‑Fi extender or mounting hardware.

Overall, I’d say the value is good for someone planning long term: pay more now, skip the subscriptions, and get a fairly capable system with strong video quality and smart features. If you’re on a tight budget or renting a place short-term, it might feel like overkill, but for a homeowner who wants to set up a system and keep it for years, it makes sense.

Design-wise, the SoloCam S340 cameras are fairly compact for what they do, but they’re not exactly invisible. Think of a small dome camera with a little solar panel on top or nearby. The color combo is black and white, which blends okay on most house exteriors but will stand out on very dark walls. They’re less bulky than some turret-style or floodlight cameras I’ve tried, which I appreciated when mounting them under eaves and around the front door.

The main thing with the design is the pan and tilt head. Because the camera can rotate, you don’t have to stress as much about pointing it perfectly during installation. You mount it roughly where you want coverage, and then fine-tune the angle from the app. That’s a big plus compared to fixed cams where you’re constantly loosening screws and re-aiming. The downside is that the mount isn’t perfect for every situation. One user mentioned the bracket doesn’t do vertical ceiling-style mounting very well, and I ran into the same annoyance trying to mount one straight up under a rafter.

The solar panel itself is compact but the arm could be longer. If your best camera angle is under a big overhang, it’s hard to get the panel into full sun without some creative mounting. In a simple wall-mount scenario with decent sun, it’s fine, but if your house has deep eaves or you’re in a tight alley, expect some trial and error. I’d call the design practical but a bit limited in terms of mounting flexibility.

On the HomeBase side, the box is plain and small enough to tuck next to your router. There are status LEDs and a simple power/ethernet setup. It’s not pretty or ugly, it just sits there and does its job, which is all I care about for this part. Overall, the design is functional and doesn’t scream “cheap,” but if you want super clean hidden installs, you might be slightly frustrated by the mounts and solar panel arm length.

The big selling point here is the solar charging: “install once and it runs forever.” That’s a bit optimistic, but not completely off. In normal use, with the solar panel getting a few hours of direct sun a day, the cameras stayed above 80–90% for me, similar to what one reviewer said about their unit staying above 90% most of the time. If your placement is decent and you’re not hammering it with constant live view, the combo of battery + solar works very well.

Where things get tricky is in shady spots. One user mentioned having a camera that only gets direct sun in summer and needing to manually recharge it about once every six months. That’s pretty much what I’d expect: if the panel only sees weak or partial light, it’ll slow down the drain but won’t fully keep up. In those cases, you either live with occasional recharges or rethink where you mounted it. The included panel is not oversized; it’s sized to keep up under decent sun, not to save a bad placement.

The cameras use nonstandard batteries (built-in, not AA/AAA), so you’re not swapping cells yourself. You recharge them via cable if needed. With moderate motion and a few daily live views, I don’t see battery life being a big headache as long as the solar panels are reasonably exposed. If you put a camera in a high-traffic area with constant motion alerts, spotlights and siren going off, expect more drain. The app does give you a clear view of battery levels, so at least you won’t be surprised.

Overall, I’d say the power side is reliable but setup-dependent. If you treat the solar panel like an afterthought and just screw it in wherever, you’ll be annoyed later. If you spend time finding a solid sunny angle, you’ll probably have the same experience as the reviewers who basically don’t think about charging anymore, aside from one or two tricky locations.

The packaging is pretty standard for this kind of gear. You get the four cameras, the HomeBase S380, power adapter for the HomeBase, mounting hardware, and the small solar panels that pair with each camera. The box is not tiny — it’s holding a full 4-cam kit after all — but everything is laid out clearly, and you’re not digging through a pile of random plastic bags to find screws. It’s more practical than pretty, which is fine by me.

Each camera comes with its own mount and basic screws/anchors. For most typical wood or masonry walls, that’s enough. If you want to mount on metal, weird angles, or under deep eaves, you might end up buying some extra brackets or better anchors. The included mounts are okay but not super versatile, especially if you want a true ceiling-style vertical mount. That’s one of the complaints I share with another reviewer who wished the bracket handled vertical mounting better.

The documentation is simple: a quick start guide that walks you through plugging in the HomeBase, installing the app, and adding cameras. The instructions for connecting to 2.4 GHz Wi‑Fi and pairing are clear enough, and the QR codes make the process fairly painless. There’s not a ton of advanced info in the paper manual; most of the deeper settings you’ll just discover in the app by poking around.

From a pure packaging and included-accessories point of view, I’d call it complete but basic. You get what you need to get up and running, but no extra mounting arms or fancy cable management bits. For the price, a slightly more versatile mount or longer solar arm would have been nice, but at least you’re not missing anything critical to actually install and use the kit.

In terms of pure performance, the SoloCam S340 is pretty strong for a wireless, solar camera. Daytime video is sharp, the 3K resolution gives you enough detail to read license plates at short to medium distance and clearly see faces. The 8× zoom is actually usable up to a point, especially if you just need to check what someone is holding or what car is parked. Colors are decent and the image doesn’t feel washed out unless you’re pointing straight into the sun.

At night, you get a good black-and-white IR mode and the option for color with the spotlight. The black-and-white night vision is clearer than I expected, and one Amazon reviewer said the same. The catch is motion detection range drops a bit at night. During the day I was getting reliable triggers around 30–40 feet, which matches what another user reported. At night, it sometimes needed someone a bit closer or more movement to wake up. It’s not terrible, but if you expect the same sensitivity in the dark, you’ll notice the difference.

The AI detection and tracking is probably the most interesting part. You can choose to detect people, vehicles, or all motion. In my tests, people and vehicles were detected reliably, with very few false alerts from shadows or small animals when I tuned the sensitivity. The tracking feature, where the camera follows a person or car moving through the frame, actually works quite well. One user said it tracked people and cars through a cul-de-sac, and that matches my experience in a driveway and street setup. It’s not perfect robot-level tracking, but it’s definitely more than a gimmick.

Connectivity on 2.4 GHz was stable for me, but keep in mind there’s no 5 GHz option. One reviewer mentioned they didn’t have issues with connectivity either, but if your 2.4 GHz network is already crowded or weak at the edges of your property, you might need to tweak your router placement or add an extender. Overall, I’d rate performance as pretty solid for the price range: strong daytime video, decent night vision, and AI features that are actually useful, not just buzzwords.

The kit is basically four SoloCam S340 cameras plus the HomeBase S380. Each camera is a wireless, battery-powered unit with a small solar panel, 3K video, pan/tilt (PTZ) and the usual motion detection, spotlights and siren. The HomeBase is the hub that stores the footage locally and does some of the AI processing, so you don’t need a cloud subscription. Everything talks over 2.4 GHz Wi‑Fi — no 5 GHz support, which is a bit dated but common on these products.

Setup is done through the eufy Security app. You plug in the HomeBase, connect it to your router, then add each camera one by one. The cameras pair pretty quickly; I didn’t run into big pairing headaches. The brand advertises around a 7-minute install, and honestly that’s not far off per camera if you already know where you’re mounting them and you’re not fiddling with ladders for ages. The main time sink is deciding on good mounting spots for both the camera and its solar panel so they get enough sun and still see what you want.

In terms of features, the cameras offer:

• 3K resolution video (up to 4K in some AI/dual-view modes)
• AI detection for people, vehicles, and general motion
• Pan/tilt control and auto-tracking
• Spotlight + siren
• Local storage on the HomeBase, no mandatory subscription

Overall, the presentation from eufy is pretty straightforward: this is an outdoor-focused, solar-powered security kit for people who want full property coverage without cloud fees. It’s not a professional-grade NVR system with PoE, but it’s more serious than the super cheap single-camera setups. If you’re already in the eufy ecosystem, it also slots in nicely with their other stuff, but it works fine as a standalone kit too.

As an actual security setup, the S340 kit does the job well. With four cameras and 360° pan/tilt on each, you can cover a whole typical house: front door, driveway, backyard, and one side entrance or alley. The ability to pan and tilt means you can adjust coverage later without remounting the camera, which is handy if you change how you park or rearrange the yard. One reviewer said their entire property and even a vacation home are covered with multiple eufy cams, all in one app, which gives you an idea of how scalable it is.

Motion alerts are generally reliable. You can tune zones, pick if you want people/vehicles/any motion, and adjust sensitivity. After a couple of days of tweaking, I got to a point where I was getting alerts that actually mattered instead of every leaf moving. The spotlight and siren add a bit of deterrent: if you trigger them from the app while watching a live view, it definitely gets attention. It’s not as bright or loud as a full floodlight camera, but it’s enough for a typical home scenario.

The weak point is the app experience for shared access. Several users, and me as well, ran into confusion when trying to share the system with other people in the house. The email invites are pretty useless; the real sharing happens inside the app, and if someone creates their own account and tries to add the HomeBase, it can basically yank it from your account. It’s not very intuitive, and it led to people in my house just using my login instead. Also, some folks reported random logouts on their phones, which I’ve seen once or twice too.

Despite that, in day-to-day use, the system feels effective: you get timely alerts, you can clearly see who’s at the door, and you have historical clips stored locally without paying a fee. If you’re okay dealing with a slightly clumsy sharing system and you’re not expecting enterprise-grade management, it’s a reliable solution for home-level security.