eufy S3 Pro vs S330: Which eufyCam is Better for You

If you’re looking for a 4K bullet camera to protect your home yet struggle to choose between eufy S3 Pro vs S330, you’re in the right place. 

The eufyCam S3 Pro, which hit the market in 2024, builds on the success of the beloved eufyCam S330 with several advanced upgrades. But, choosing an upgraded version isn't always the best option unless it truly meets your needs.

In this article, we'll explore the similarities and differences between the two eufycam, helping you decide when to go for one over the other. Plus, we'll introduce the latest eufycam that you should definitely check out!

eufyCam Series Overview

As the name implies, eufyCam series is the flagship camera lineup of eufy. Here are the key features that set it apart: 

• First, until the eufyCam S3 Pro, all eufyCams required a HomeBase to operate. They couldn’t connect directly to Wi-Fi, instead relying on power-saving Wi-Fi and low-frequency wireless protocols to minimize energy consumption while maintaining a secure connection. 
• Second, including S3 Pro, all eufyCams are designed as bullet cameras with a fixed view.
• Third, all eufyCams are designed for easy installation, as they are either solar-powered or battery-operated, eliminating the need for wiring during setup.

 eufyCam S330 vs. S3 Pro: Key Specs Comparison

Feature	eufyCam S330	eufyCam S3 Pro
Video Resolution	4K Ultra HD	4K Ultra HD
Night Vision	Starlight color and infrared night vision	MaxColor Vision (advanced color night view)
Motion Detection	PIR sensor with 30 ft range	PIR + radar sensor with 40 ft range
AI Features	BionicMind AI	BionicMind AI
Spotlight	Fixed brightness spotlight	Adaptive spotlight that adjusts brightness automatically
Recording Modes	Motion-based recording only	Motion-based and 24/7 hybrid recording
Smart Home Compatibility	Alexa, Google Assistant	Apple HomeKit, Alexa, Google Assistant
Price	$549.99 (2 cameras)	$549.99 (2 cameras)

eufy S330 vs. S3 Pro: Similarities

The two bullet cameras are a part of the eufyCam series for outdoor security, and therefore share a lot of the same or similar features. 

• 4K Resolution: Each camera records in high quality 4K resolution and can capture details like faces, license plates, and small movements from at least 30 feet away.
  
  
• Solar Power: Both models have a built-in solar panel to maintain power with just battery life through regular sunlight.
  
  
• Smart AI & Local Storage: Both eufyCam cameras require HomeBase 3 to operate, which unlocks its full potential. This includes BionicMind AI, capable of distinguishing strangers from loved ones, cross-camera tracking to seamlessly combine recordings of the same individual, and local storage that keeps all your footage securely in your hands—eliminating subscription fees and privacy concerns.

eufyCam S3 Pro vs S330: How They Differ

While both security cameras share many of the same high-quality features, the S3 Pro builds on the S330’s solid foundation with several upgrades that can make a difference. 

Night Vision

The S3 Pro and S330 both support color and infrared night vision, but their approaches differ significantly. The S330 relies on a spotlight to achieve color night vision, offering visibility of up to 16–26 feet at night. In contrast, the S3 Pro offers two distinct color night vision modes.

The first is the Daylike Mode, powered by MaxColor Vision technology and a wider camera aperture that allows more light intake, delivering day-like clarity even in low-light areas. The second is Spotlight Color Night Vision, similar to the S330, but with an added advantage: the S3 Pro’s adaptive spotlight automatically adjusts brightness to prevent overexposure and ensure finer details are captured.

Additionally, the S3 Pro outperforms the S330 in nighttime detail, identifying faces and license plates up to 30 feet away, making it a superior choice for enhanced night vision capabilities.

• Key takeaway: The S3 Pro offers superior night vision with day-like clarity and adaptive spotlight, while the S330 relies on spotlight-based color night vision with a shorter range.

Motion Detection and Range

Both cameras detect motion reliably, but the S3 Pro’s dual PIR and radar sensors push accuracy to the next level. This combination extends the detection range from 30 feet on the S330 to around 40 feet, while reducing false alerts by up to 99%. During user tests, the S3 Pro picked up motion from much farther away.

• Key takeaway: The S3 Pro detects motion from farther away and more accurately, while the S330 remains a strong performer.

Solar and Power Efficiency

The S3 Pro introduces significant upgrades in solar power charging compared to the S330. 

Equipped with a larger solar panel and the debut of SolarPlus 2.0 technology, it offers higher charging efficiency and even supports charging under shade. While the S330 requires two hours of direct sunlight for a full day of use, the S3 Pro needs only one hour. 

Additionally, the S3 Pro allows the option to connect an extra solar panel, providing greater flexibility in camera placement for optimal performance.

• Key takeaway: The S3 Pro offers faster charging, shade compatibility, and flexible placement with its upgraded SolarPlus 2.0 technology and larger solar panel.

Recording Options

The S3 Pro introduces hybrid recording, which supports both motion-based and continuous 24/7 recording when wired to power. This gives users more flexibility for monitoring high-traffic or critical areas. It also includes a snapshot feature that captures periodic stills between motion events to fill in the gaps. The S330, on the other hand, only supports motion-based recording.

• Key takeaway: The S3 Pro enables continuous 24/7 recording when wired, offering fuller coverage than the S330’s motion-only recording.

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Audio and Smart Features

Both models feature two-way communication, but the S3 Pro enhances sound clarity with dual microphones and AI-powered noise reduction technology, making voices easier to hear in busy environments.

It’s also the first eufyCam to support Apple HomeKit, joining Alexa and Google Assistant for seamless integration.

• Key takeaway: The S3 Pro improves sound quality and adds HomeKit support, giving it an edge in smart home versatility.

When to Choose eufy S3 Pro vs S330

With pricing so similar, both cameras offer excellent value, but the S3 Pro brings a few key improvements that may make it worth the upgrade for many users. However, the S330 may see larger discounts during promotional seasons.

Choose eufyCam S3 Pro if:

• You want superior color night vision that looks almost like daylight.
• You need a longer motion detection range.
• You prefer Apple HomeKit compatibility for a fully connected smart home.

Choose eufyCam S330 if:

• You already use HomeBase 3 and want an affordable way to expand your setup.
• You’re satisfied with motion-based recording and strong 4K video quality.

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Is Bullet Camera Enough for Home Security?

A bullet camera like the eufyCam S3 Pro and S330 can be a great starting point for home security, but whether it’s enough depends on your specific needs. 

Bullet cameras are ideal for monitoring specific zones, offering strong deterrence with their visible design and consistent coverage. However, they have limitations, such as fixed views and vulnerability to tampering. 

For comprehensive security, you may need to complement bullet cameras with other types, like dome or PTZ cameras, to cover blind spots and provide more flexible monitoring.

Here’s where the eufyCam S4 comes to the rescue - a combination of bullet and PTZ camera.

eufyCam S4: The Next Evolution of the eufyCam Series

The eufyCam S4 takes everything that makes the S3 Pro and S330 so reliable and makes it even better. It even fixes the main limitation of a bullet camera - it’s inability to track movement or adjust the viewing angle.

As eufy’s first wireless model that combines a bullet and PTZ camera in one unit, the S4 delivers both constant coverage and flexible tracking without leaving blind spots.

What Makes eufyCam S4 an Advanced Choice?

Let’s take a closer look at what sets the S4 apart from previous models in the eufyCam lineup.

• Triple-lens Camera: The upper bullet camera provides continuous 4K surveillance of your main area, while the lower dual-lens PTZ camera actively follows movement to ensure no activity goes unnoticed.
• Smart Motion Tracking: When motion is detected by the upper camera, the lower PTZ lens automatically pans, tilts, and zooms to follow it in real time. The S4 can even track multiple people or moving objects simultaneously, while the S3 Pro and S330 focus on a single subject.
• Standalone or HomeBase Operation: Unlike the S3 Pro and S330, which require a HomeBase connection, the S4 can function as a standalone camera or integrate seamlessly into an existing eufyCam system. This makes it a great fit for both new users and those expanding their setup.
• Enhanced Solar Power and Battery Design: The S4 features a larger 5.5W detachable solar panel, offering more flexible placement and efficient charging. Additionally, its quick-release battery pack makes recharging easier compared to the S3 Pro and S330.

Key Specs at a Glance

Feature	eufyCam S4
Camera Type	Hybrid Bullet + PTZ camera
Camera Lenses	Triple-lens
Resolution	4K + 2K + 2K
Zoom	8x Hybrid
Tracking	Bullet-to-PTZ tracking/Group tracking/Auto-framing/Cross-cam tracking
AI Detection	Built-in AI for people, vehicle, and pet detection;  BionicMind adds facial and body recognition
Power Supply	Solar-powered: (1 hr sun = full day) / Wired
Recording	Event Recording / 24/7 Recording
Early Bird Offer	15% OFF

FAQ

What’s the biggest difference between the eufyCam S3 Pro and S330?

The S3 Pro includes upgrades like MaxColor Vision, dual PIR and radar motion sensors, and hybrid recording. It also supports Apple HomeKit and features noise reduction for clearer audio. The S330 still offers excellent 4K footage and solar power, but lacks the extra range and versatility of the newer model.

Can the eufyCam S3 Pro record 24/7?

Yes, the eufyCam S3 Pro can record 24/7 when wired to power, while also offering motion-based recording when powered by solar.

How far can the S3 Pro detect motion?

Thanks to its dual PIR and radar sensors, the S3 Pro detects movement from up to 40 feet away, compared to about 30 feet on the S330. The radar also helps reduce false alerts caused by shadows or small animals, offering more accurate notifications.

Is it worth upgrading from the S330 to the S3 Pro?

If you want better night vision, a longer detection range, and 24/7 recording, then yes—the S3 Pro is a worthwhile upgrade. But if your S330 setup already meets your needs, it remains a reliable and efficient 4K camera. 

Final Thoughts

Both the eufyCam S3 Pro and S330 are excellent options for protecting your home and family, each built with eufy’s focus on privacy and reliability. The S3 Pro refines the experience with brighter night vision, extended range, and more flexible recording options, while the S330 remains a dependable 4K camera for everyday use.

The new eufyCam S4 combines the strengths of both models, introducing smart tracking and triple-lens coverage to deliver complete, all-in-one home protection.