eufy S3 Pro vs S330 – Check Which One Is Best & Why?

eufy S3 Pro 2 & eufy S330 share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the eufy S3 Pro 2 rather than the eufy S330. 

Table Of Contents hide
1 Why Do I Recommend The eufy S3 Pro 2?
2 Side By Side Comparison
3 What Common Both Can Do?
4 Common Features

Why Do I Recommend The eufy S3 Pro 2? 

  • The Eufy S3 Pro 2 features a dual radar and PIR motion detection system for more precise tracking and reduced false alerts in complex outdoor environments, while the Eufy S330 uses a standard PIR motion sensor with less accuracy.
  • Eufy S3 Pro 2 comes with MaxColor Vision technology for full-color night footage in near-total darkness, whereas the Eufy S330 relies on spotlight and starlight sensor for partial color visibility under limited light.
  • It supports 24/7 continuous recording through USB-C wired power for complete surveillance coverage, while the Eufy S330 operates mainly in event-triggered mode without full-time recording capability.
  • The Eufy S3 Pro 2 includes adaptive spotlight control to automatically adjust illumination based on scene brightness for more balanced night footage, whereas the Eufy S330 features a fixed-level spotlight without automatic brightness tuning.
  • Eufy S3 Pro 2 features improved solar efficiency with SolarPlus 2.0 panels to maintain charge even in low sunlight conditions, while the Eufy S330 requires stronger direct sunlight exposure to stay fully powered.
  • It supports Apple HomeKit Secure Video for integration within Apple’s smart home ecosystem, whereas the Eufy S330 focuses only on Alexa and Google Assistant compatibility without HomeKit support.
  • The Eufy S3 Pro 2 includes a larger image sensor with a wider aperture to capture clearer, more detailed footage in dim lighting, while the Eufy S330 uses a standard sensor with reduced low-light sensitivity.
  • Eufy S3 Pro 2 features enhanced AI-assisted false alert filtering with radar assistance & BionicMind analysis for more reliable detection accuracy, while the Eufy S330 uses AI filtering without radar assistance.

Maybe the eufy S330 price can make you comfortable because it’s a little bit cheaper than the eufy S3 Pro 2. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

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Side By Side Comparison

Featureeufy S3 Pro 2eufy S330
Night vision systemMaxColor VisionStarlight sensor + IR
Color at night without spotlightYesLimited; relies on spotlight for color
SpotlightAdaptive spotlightFixed 100 lm spotlight
Motion sensingRadar + PIR dual-sensorPIR only
False-alert reductionRadar precision filteringPIR/AI filtering only
Continuous recording (wired)24/7 recording supportedNot supported for continuous recording
24/7 timeline mode24/7 SnapshotNot available
Smart home (Apple)Apple Home / HomeKit Secure VideoNo HomeKit support
HomeKit video resolution1080p via HomeKit—
Low-light color qualityDay-like color in very low lightMore noise in very low light
Solar systemHigher-efficiency built-in solarIntegrated solar; needs ~2 hrs direct sun/day
Wired power optionUSB-C optional powerBattery/solar only
Included kit positioningPremium 4K kit with advanced sensing4K kit with standard sensing
AI features emphasisBionicMind + radar-aided detectionBionicMind
Illumination controlScene-adaptive brightnessFixed-level spotlight behavior
Night vision range emphasisLonger effective color rangeShorter effective color range without spotlight
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What Common Both Can Do?

  • Video Resolution: Both the Eufy S3 Pro 2 and Eufy S330 record in 4K UHD resolution, ensuring crisp detail and clarity suitable for identifying faces, license plates, and fine motion even at a distance.
  • AI Detection: Each uses Eufy’s BionicMind AI system, which can distinguish between humans, pets, and vehicles, reducing false alerts and improving recognition accuracy over time.
  • Local Storage: Both models come with built-in 16GB of storage in the HomeBase unit, enabling direct recording without relying on cloud services.
  • Expandable Storage: Each supports external drive expansion for users who require larger capacity for extended video history.
  • Wireless Connectivity: Both operate on dual-band Wi-Fi (2.4GHz and 5GHz), improving connectivity options and minimizing network interference.
  • Smart Integration: Each camera works with Amazon Alexa and Google Assistant, allowing voice control and live feed access through smart displays or apps.
  • Power Option: Both models feature solar-assisted power combined with an internal rechargeable battery, providing long-term operation without frequent manual charging.
  • Weather Resistance: Each camera is IP67 rated, offering reliable performance in rain, dust, and varying outdoor conditions.
  • Audio: Both include two-way audio, enabling direct communication through the app to visitors or delivery personnel.
  • Microphone: Each device uses a noise-cancelling microphone to ensure clear voice pickup and better sound clarity during communication.
  • Speaker: Both models have a built-in speaker capable of delivering loud, clear audio for responses or deterrent warnings.
  • Field of View: Both feature a wide 135° lens, providing broad coverage suitable for driveways, gardens, and entrances.
  • Smart Detection Types: Each supports advanced recognition for humans, vehicles, and pets, allowing customized notification settings for different motion types.
  • Mobile App: Both are fully managed through the Eufy Security app, which offers live view, playback, and customizable alert management.
  • Cloud-Free Recording: Each emphasizes local storage, avoiding recurring cloud fees and ensuring privacy for user data.
  • Encryption: Both utilize AES-128 encryption to secure stored and transmitted data, keeping user recordings safe from unauthorized access.
  • Operating Temperature: Both cameras are designed to function reliably between −20°C and 50°C, making them suitable for most climates.
  • Installation Type: Each model supports flexible wireless installation, simplifying mounting and repositioning.
  • Firmware Updates: Both receive firmware and feature updates over-the-air, ensuring ongoing security and performance improvements.
  • Multi-Camera Support: Both are compatible with Eufy’s HomeBase for connecting multiple cameras, allowing unified monitoring within one system.

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Common Features

Featureeufy S3 Pro 2eufy S330
Video Resolution4K UHD4K UHD
AI DetectionBionicMind AIBionicMind AI
Local Storage16GB built-in16GB built-in
Expandable StorageYesYes
Wireless Connectivity2.4GHz / 5GHz Wi-Fi2.4GHz / 5GHz Wi-Fi
Smart IntegrationAlexa and Google AssistantAlexa and Google Assistant
Power OptionSolar + BatterySolar + Battery
Weather ResistanceIP67IP67
AudioTwo-way audioTwo-way audio
MicrophoneBuilt-in noise reduction micBuilt-in noise reduction mic
SpeakerBuilt-in loudspeakerBuilt-in loudspeaker
Field of View135°135°
Smart Detection TypesHuman / Vehicle / PetHuman / Vehicle / Pet
Mobile AppEufy Security appEufy Security app
Cloud-Free RecordingYesYes
EncryptionAES-128 / Local secure storageAES-128 / Local secure storage
Operating Temperature−20°C to 50°C−20°C to 50°C
Installation TypeWireless mountWireless mount
Firmware UpdatesOTAOTA
Multi-Camera SupportYesYes
Price Checkn eufy S3 Pro 2 Price Check eufy S330 Price

FAQ

Does the Eufy S3 Pro 2 record in 4K resolution?
Yes, the Eufy S3 Pro 2 records in true 4K Ultra HD resolution, delivering highly detailed video footage that allows clear identification of people and objects even at longer distances.

Does the Eufy S330 also support 4K recording?
Yes, the Eufy S330 features the same 4K UHD recording capability, ensuring equally sharp and high-quality visuals under proper lighting conditions.

Can both cameras operate without cloud storage?
Yes, both the Eufy S3 Pro 2 and S330 offer fully cloud-free recording through local HomeBase storage, which keeps user data private and eliminates monthly subscription costs.

Do both models use the same HomeBase unit?
Yes, both cameras connect to the Eufy HomeBase S380 system, allowing local video storage, AI processing, and multi-camera management from a single hub.

Can the storage be expanded for longer recordings?
Yes, both models allow storage expansion by connecting external hard drives to the HomeBase, which is ideal for users needing extended recording history.

Are both cameras solar-powered?
Yes, each camera includes a solar-assisted charging system that keeps the battery charged automatically with sufficient sunlight, minimizing the need for manual recharging.

Do the Eufy S3 Pro 2 and S330 support two-way audio?
Yes, both models feature built-in microphones and speakers for real-time two-way communication, enabling users to speak with visitors directly from the Eufy Security app.

Are these cameras weather-resistant for outdoor use?
Yes, both devices carry an IP67 rating, meaning they can withstand rain, dust, and extreme temperatures, making them well-suited for outdoor environments.

Do both models include AI detection?
Yes, both the Eufy S3 Pro 2 and S330 utilize Eufy’s BionicMind AI, which identifies humans, vehicles, and pets, reducing false motion alerts and improving detection accuracy.

Can both connect to Wi-Fi networks?
Yes, each model supports dual-band Wi-Fi connectivity on both 2.4GHz and 5GHz frequencies, ensuring stable connections and better signal flexibility.

Are Alexa and Google Assistant supported?
Yes, both cameras integrate with Amazon Alexa and Google Assistant, allowing voice control and real-time video display on smart devices like Echo Show or Nest Hub.

Do both models use the Eufy Security app?
Yes, both the Eufy S3 Pro 2 and S330 operate through the same Eufy Security app, which provides remote access, live viewing, notifications, and playback management.

Is night vision available on both models?
Yes, each camera supports color night vision with a spotlight and infrared system, ensuring clear and bright video in low-light or nighttime conditions.

Are firmware updates automatic for both?
Yes, both cameras receive over-the-air firmware updates automatically through the Eufy Security app, maintaining system security and adding new features.

Can users link multiple cameras to one HomeBase?
Yes, both models allow multi-camera pairing with a single HomeBase, providing a centralized system for monitoring multiple zones from one interface.