eufy S330 vs. S340: Which Security Camera is The Best for You?

Choosing between the eufy S330 vs. S340 isn’t as simple as it sounds, because “S330” actually refers to two different cameras. There’s the eufyCam S330, a fixed bullet model that connects through HomeBase 3, and the 4G LTE Cam S330, a standalone PTZ that uses cellular data when Wi-Fi isn’t an option. On the other side, you’ve got the SoloCam S340, a dual-lens PTZ designed for flexible home coverage.

• eufyCam S330: A 4K bullet camera designed for whole-home coverage through HomeBase S380. Best if you want always-on clarity over key entrances and centralized storage for a multi-camera setup.
• SoloCam S340: A dual-lens PTZ camera. Best if you want one camera that can track activity across a larger area and zoom in on details when it matters.
  
  
• 4G LTE Cam S330: A cellular-enabled PTZ camera. Best if you need reliable monitoring in places where Wi-Fi isn’t an option, like cabins, barns, or job sites

If you landed here by searching “eufy S330 vs. S340,” this will clear up the confusion. We’ll compare both S330 models against the S340 so you can see exactly which one fits your needs. 

To make things clearer, we’ll also break down the differences between bullet and PTZ cameras so you’ll know when each style makes the most sense for your home.

eufy 4G LTE Cam S330 vs. SoloCam S340

These two PTZ cameras are compared a lot because they both can work without HomeBase, but they solve different problems. The 4G LTE Cam S330 is built for places where Wi-Fi is unstable or unavailable, while the SoloCam S340 is designed for flexibility and detail capturing.

Specs at a Glance

Design and Setup

The 4G LTE S330 is built for off-grid use. It runs on both cellular data and Wi-Fi networks and can automatically switch to whichever is more stable. That’s not just important for rural areas like cabins and barns, but also if your backyard is out of your router’s radius. 

The SoloCam S340 is a standalone device that requires Wi-Fi to run. It can be set up as a standalone device, or you can connect it to HomeBase 3 for more storage and advanced AI features.

• Key Takeaway: S330 is for off-grid reliability, while S340 is for flexible home setups.

Video Quality

Both security cameras are good at monitoring open spaces with their pan & tilt abilities.

The SoloCam S340 is a dual-lens camera. It pairs a wide-angle 3K lens with a 2K telephoto lens, giving you up to 8x hybrid zoom and crisp detail. 

The 4G LTE Cam S330 comes with a 4K wide-angle lens, giving you a slightly better video quality. Yet, without the telephoto lens, the detail isn’t as crisp at higher zoom levels as the S340.

• Key Takeaway: SoloCam S340 uses dual lenses (3K + 2K) with 8x hybrid zoom, while the 4G Cam S330 has a single 4K lens with 8x digital zoom.

Motion Detection

The 4G LTE Cam S330 and SoloCam S340 both use PIR sensors to pick up movement. In official specs, the SoloCam S340 is rated to detect motion at about 26 feet during the day and 20 feet at night, though real-world tests push it closer to 40 feet on high sensitivity. 

The 4G LTE S330 is tested to trigger reliably at around 35 feet. These distances can vary depending on placement and environment, but they show that the S340 has a longer detection rate, while the 4G LTE model isn’t far behind. 

• Key Takeaway: S340 delivers the farthest motion detection range, while the 4G LTE S330 also performs strongly in real-world tests.

AI-Powered Smart Detection

Both the 4G LTE Cam S330 and the SoloCam S340 can identify people and vehicles on their own, keeping alerts accurate and relevant. This helps cut down on false notifications from things like swaying branches.

You can enjoy additional AI features when you connect either camera to HomeBase 3 in Wi-Fi mode. This unlocks advanced BionicMind AI features like facial recognition and event sorting, which make it easier to spot familiar faces and find the clips that matter most.

• Key Takeaway: Both cameras provide reliable human and vehicle detection, with the option to use BionicMind AI features.

Night Vision and How Far It Can See 

Both the 4G LTE Cam S330 and the SoloCam S340 feature a 100-lumen spotlight that enables full-color night vision, and both also switch to infrared mode for clear black-and-white recording.

In practice, the 4G LTE S330’s 4K resolution makes license plates readable at around 30 feet during the day, with sharp detail at about 26 feet in the dark.

The dual-lens of SoloCam S340 lets you see details at a 50ft or 26ft distance during the day and night separately.

• Key Takeaway: Both models feature color and infrared night vision, with the 4G Cam S330 offering 4K clarity and the SoloCam S340 excelling in long-distance detail.

Storage and Power

Both models are solar-first and come with detachable solar panels. This is a big deal because you can place the panel where it gets the most sunlight, even if the camera is mounted in a shaded area. 

Backup batteries keep them running during cloudy stretches. The SoloCam S340 typically lasts about three months per charge, while the 4G LTE S330 averages around one month. 

When it comes to local storage, the 4G LTE S330 comes with a 32GB MicroSD card, which can store up to 8 months of 4K footage. You can upgrade to a 128GB card for even more storage. The SoloCam S340 has 8 GB of built-in storage. 

Both models can expand the storage via HomeBase 3. 

• Key Takeaway: Both cameras utilize solar energy for sustainable home security, but the SoloCam Sp340 has a backup battery that lasts longer.

Best Use Cases

• eufy 4G LTE S330 → best for rural properties, job sites, cabins, or any location with limited Wi-Fi access.
  
  
• eufy SoloCam S340 → best for homeowners who want detailed 3K coverage and PTZ control, with the option to expand into facial recognition through HomeBase.

eufyCam S330 vs. SoloCam S340

In addition to comparing the eufy 4G Cam S330 and the SoloCam S340, many users also find it challenging to decide between the eufyCam S330 and the SoloCam S340. Even though you can’t go wrong with either of these security cameras, they’re designed with different setups in mind. 

Specs at a Glance

The eufyCam S330, also known as eufyCam 3, is a fixed bullet camera that needs HomeBase 3, while the SoloCam S340 is a dual-lens PTZ camera that can run on its own.

Design and Setup

Both of these are Wi-Fi cameras that require no wires, so the installation process is quite easy. While S340 gives you more flexibility as the solar panel is detachable, you should be more careful about the placement of S330.

And you already know that SoloCam S340 can work over Wi-Fi directly or pair with HomeBase S380 to unlock advanced features. Yet, it’s not the case for eufyCam S330. 

The eufyCam S330 requires HomeBase to work. It cannot connect to regular Wi-Fi networks. Instead, it uses a proprietary low-frequency wireless protocol through HomeBase 3 to cut down on power use and ensure a secure connection. That means that while you can’t run it as a standalone.

• Key Takeaway: The S330 needs HomeBase 3 while the S340 can operate as a standalone camera.

Video and Camera Lenses

The eufyCam S330 captures stunning 4K video, just like the 4G Cam S330. This means the footage is clearer compared to the SoloCam S340. 

However, the SoloCam S340 shines with its dual lens, allowing it to capture both wide-angle views and intricate close-up details simultaneously.

• Key Takeaway: The S330 offers superior video clarity, while the S340 excels at capturing details.

Motion Detection

Both cameras are equipped with a PIR sensor that detects motion around your property, so their motion detection ranges are quite similar. In practical tests, the eufyCam S330 can pick up motion from about 30 feet away, while the SoloCam S340 can extend that range to a maximum of 40 feet when set to its highest sensitivity. 

Both models allow you to customize activity zones and tweak sensitivity settings right from the app.

• Key Takeaway: Both cameras offer similar motion detection capabilities, but the Solocam S340 tends to perform a bit better in real-world tests.

AI-Powered Smart Detection

One of the benefits of the eufyCam S330 requiring HomeBase 3 is that you get the full benefits of BionicMind AI. Not only does it detect people, vehicles, and pets, but it also has facial recognition to distinguish between your loved ones and strangers. 

While the SoloCam S340 comes with human and vehicle detection right out of the box. 

• Key Takeaway: eufyCam S330 comes with full BionicMind AI features, while S340 starts with basic On-device AI detection but can upgrade later.

Night Vision and How Far It Can See 

Both cameras support color night vision with a spotlight or traditional infrared night vision.

The eufyCam S330 records in 4K day and night, using an f/1.4 aperture lens and a Starlight photosensitive system that enhances low-light scenes for full-color clarity. 

The SoloCam S340 uses f/1.6 aperture lenses, which still capture solid low-light performance but don’t let in quite as much light as the S330. 

While Solocam S340 can capture details up to 50 feet during the day and 26 feet at night. The eufycam S330 allows users to see license plates from as far as 33 feet during the day and between 16 to 26 feet at night. 

• Key Takeaway: The eufyCam S330 excels in 4K clarity and low-light performance with its f/1.4 lens, while the SoloCam S340 offers solid detail capture at longer distances.

Storage and Power

The eufyCam S330 includes 16GB of built-in EMMC storage and saves all footage through HomeBase 3, which can expand up to 16TB. The SoloCam S340 records directly on the device and has a built-in 8GB EMMC. with the option to sync with HomeBase for more space. 

Both models are solar-powered and can run “forever” as long as they get 2 hours of direct sunlight per day. When it comes to backup battery life, the eufyCam S330 can last up to a year without needing a recharge, while the SoloCam S340 has a battery life of approximately 3 months.

• Key Takeaway: The eufyCam S330 offers more storage and longer battery life than the SoloCam S340, with both being solar-powered for continuous use.

Best Use Cases

• eufyCam S330: Ideal for creating a reliable multi-camera system to monitor key entrances consistently without focusing on activity tracking.
• SoloCam S340: Perfect for covering larger areas with a single camera, capturing detailed footage over longer distances.

eufyCam S330 vs SoloCam S340: Bullet or PTZ?

Choosing between the eufyCam S330 and SoloCam S340 isn’t just about which camera is better—it’s about deciding whether a bullet or PTZ camera fits your needs.

Bullet Cameras (eufyCam S330):

Ideal for constant monitoring of specific areas with a stable, fixed view. However, covering multiple points requires additional cameras, and they cannot track movement or suspect behavior.

PTZ Cameras (SoloCam S340):

Perfect for tracking motion and monitoring larger areas. While they offer flexibility, they temporarily leave previously monitored zones uncovered when following motion.

Neither type is universally better—they’re designed for different scenarios. 

Why Choose When You Can Have Both?

The new eufyCam S4 combines the strengths of both bullet and PTZ cameras into one unit, offering constant monitoring and flexible motion tracking without compromise.

eufyCam S4: The Ultimate Hybrid Camera

The eufyCam S4 is the first wireless model from eufy that combines the strengths of a bullet camera and a PTZ in one unit. Instead of choosing between a wide-angle 4K view or flexible zoom and tracking, you get both at the same time. 

Specs at a Glance

Design and Setup

Like the SoloCam S340, the eufyCam S4 can operate wire-free via Wi-Fi or connect to HomeBase. Setup is simple, especially if 24/7 recording isn’t required.

Video and Camera Lenses

The S4 is eufy’s first wireless triple-lens security camera, featuring a 4K wide-angle lens for fixed monitoring and 2K dual PTZ lenses for motion tracking and expansive coverage.

 AI-Powered Smart Detection 

Out of the box, it detects people, vehicles, and pets. When paired with HomeBase 3, it unlocks BionicMind AI for facial recognition and advanced detection.

Motion Detection & Tracking

The S4 combines PIR and radar sensors for highly accurate motion detection, reducing false alarms and extending the range to 40 ft. Its bullet-to-PTZ tracking ensures constant monitoring of key areas while zooming in on motion for detailed close-ups.

Storage and Power

With 32 GB built-in storage, expandable to 256 GB via microSD on the device, and up to 16 TB with HomeBase 3, the S4 offers extensive local storage capacity. 

Its upgraded 5.5W solar panel provides a full day of power with just an hour of sunlight, or it can be wired for continuous 24/7 recording.

Night Vision and Range

You can choose from Starlight color mode, spotlight full-color mode, or infrared black-and-white mode for nighttime monitoring. The camera delivers clear images up to 50 ft during the day, 33 ft at night, and auto-zooms on details up to 164 ft.

How eufyCam S4 Solves Home Security Challenges

• Eliminating Blind Spots

Combines a fixed bullet lens for constant monitoring with a PTZ lens for flexible tracking, ensuring no area is left unmonitored.

• Smarter Tracking

Tracks multiple subjects simultaneously without losing focus on key areas, addressing risks during complex break-in scenarios.

• Streamlined Multi-Camera Management

Replaces multiple cameras with one hybrid unit, simplifying setup, monitoring, and playback while reducing costs.

FAQ

Why is my eufy SoloCam S340 solar panel not charging?

If the SoloCam S340 solar panel isn’t charging, try these fixes:

• Ensure the USB-C connection is fully plugged in.
• Clean dirt or debris from the panel and connectors.
• Position the panel for direct sunlight; avoid shade or poor angles.
• Cold temperatures below 0°C may temporarily stop charging.
• Set the camera’s power source to “solar panel” in the app.

Can the SoloCam S340 work without HomeBase?

Yes, the SoloCam S340 can work without HomeBase. It can function as a standalone camera via Wi-Fi or connect to HomeBase. Using HomeBase 3 unlocks advanced AI features like facial recognition and expands storage space.

Does the eufy 4G LTE Cam S330 require a data plan?

Yes, the 4G LTE Cam S330 requires a data plan. It includes a 3-in-1 SIM card with 100 MB of free data for the first week, after which you’ll need to set up a data plan with your carrier.

Is eufyCam S330 better for large properties than SoloCam S340?

It depends on your needs. The eufyCam S330 is ideal for monitoring multiple entrances or access points with steady, wide coverage. For large open areas, like driveways or backyards, the SoloCam S340 is better suited with its PTZ controls and dual lenses for flexible monitoring and detailed zooming.

Conclusion

After this detailed comparison, we hope that choosing between the S330 and S340 is now easier.

The eufy 4G Cam S330 is ideal for areas with unstable Wi-Fi. The eufyCam S330 excels at providing constant monitoring of key entrances, and the SoloCam S340 is perfect for covering large areas. 

If you're unsure whether to opt for a bullet or PTZ camera, the new eufyCam S4 is the ultimate solution, combining the strengths of both into one powerful unit.