Eufy S330 vs E330 – Check Which One Is Best & Why?

Eufy S330 & Eufy E330 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 S330 rather than the Eufy E330. 

Table Of Contents hide
1 Why Do I Recommend The Eufy S330?
2 Side By Side Comparison
3 What Common Both Can Do?
4 Common Features

Why Do I Recommend The Eufy S330? 

  • The eufy S330 features a smart auto-lock with a built-in door sensor for automatically securing the door when closed, whereas the eufy E330 uses a countdown timer auto-lock.
  • eufy S330 includes advanced detection features such as human, leaving, and loitering detection for better security insights, while the eufy E330 has only basic human detection.
  • It comes with a Wi-Fi Bridge that doubles as a chime for instant setup and audible alerts, while the eufy E330 requires a separate chime purchase for the same functionality.
  • The eufy S330 supports expandable storage up to 128 GB with an SD card for longer video retention, whereas the eufy E330 has a fixed built-in 8 GB eMMC storage capacity.
  • eufy S330 has approximately 10 % longer battery life for extended usage without frequent recharging, while the eufy E330 provides a shorter standard battery lifespan.
  • It includes more intelligent notifications with detailed previews through its bridge system for easier monitoring, while the eufy E330 depends on built-in Wi-Fi.
  • eufy S330 has ANSI/BHMA Grade 3 certification for higher residential security and durability, while the eufy E330 uses only a mechanical 156.25 Test-36 standard.

Maybe the Eufy E330 price can make you comfortable because it’s a little bit cheaper than the Eufy S330. 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.

Check Eufy S330 Best Price

Check Eufy E330 Best Price

Side By Side Comparison

FeatureEufy S330Eufy E330
CertificationANSI/BHMA Grade 3Mechanical 156.25 Test‑36 only
Auto-Lock MechanismSmart auto-lock via built-in door sensorAuto-locks via countdown timer
Detection CapabilitiesHuman, leaving, and loitering detectionHuman detection only
Local StorageVia included Wi-Fi Bridge/HomeBaseBuilt-in 8 GB eMMC on the lock
Chime IncludedYesNo
Storage ExpandabilitySupports up to 128 GB SD cardNot specified
Battery LifespanApproximately 10 % longer battery lifeBaseline battery life
Power Source / Recording ModeBattery-powered; limited recording windowWired power allows for 24/7 recording
Water Resistance (Camera part)IP65 ratingAlso IP65
Operating Temperature RangeStandard (likely around −10 °C to 50 °C)Broader range: –30 °C to 70 °C
ANSI/BHMA Grade RatingGrade 3Grade 3 mechanical standard only
Ecosystem RequirementsRequires Wi-Fi BridgeBuilt-in Wi-Fi – no extra bridge needed
Unlock MethodsFingerprint, app, voice, keypad, physical keySame suite, with built-in Wi-Fi facilitating remote access
Ecosystem CompatibilityWorks with Alexa, Google HomeWorks with Alexa, Google Home, and supports HomeBase 3 expansion
Push Notifications / Thumbnail PreviewsAvailable via bridgeAvailable via built-in Wi-Fi, some features may use cloud
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What Common Both Can Do?

  • 2K Video Resolution: Both locks record and stream in sharp 2K clarity, ensuring you can easily recognize visitors.
  • Aspect Ratio (4:3): Each model uses a 4:3 aspect ratio, giving better vertical coverage to see packages and full-body views.
  • Two-Way Audio: Both let you talk to visitors remotely using the eufy app, thanks to a microphone and speaker setup.
  • Battery Power (10,000 mAh): Each runs on the same high-capacity rechargeable battery for long usage between charges.
  • Operating Temperature: Both are designed to function from –10 °C to 50 °C, suitable for most climates.
  • Multiple Unlock Options: Both models support fingerprint unlock, mobile app, keypad entry, voice assistant, and backup physical key.
  • Smart Doorbell Integration: Both act as doorbell + smart lock combos with video and notification features in one.
  • Smart Assistant Compatibility: You can connect either lock to Alexa or Google Assistant for voice-controlled locking/unlocking.
  • Free Local Storage: Neither requires a subscription for storing footage or accessing core features—keeping costs low.
  • AI Detection: Both can distinguish human presence to reduce false motion alerts.
  • Weather Resistance: Each carries an IP65 rating, protecting against rain, dust, and outdoor conditions.
  • Video Calling & App Control: Both allow live view, video calling, and full control through the eufy Security app.

Check Eufy S330 Best Price

Check Eufy E330 Best Price

Common Features

FeatureEufy S330Eufy E330
Video Resolution2K high-definition2K high-definition
Aspect Ratio4:3 vertical view4:3 vertical view
Two-Way AudioYes, built-in mic & speakerYes, built-in mic & speaker
Battery Capacity10,000 mAh rechargeable10,000 mAh rechargeable
Operating Temp. Range–10 °C to 50 °C–10 °C to 50 °C
Unlock MethodsFingerprint, app, keypad, voice, physical keyFingerprint, app, keypad, voice, physical key
Video Doorbell IntegrationBuilt-in 2K doorbellBuilt-in 2K doorbell
Smart Home SupportWorks with Alexa & Google AssistantWorks with Alexa & Google Assistant
NotificationsInstant push notificationsInstant push notifications
Local Storage (no subscription)Free local storage optionFree local storage option
3-in-1 ComboSmart lock + doorbell + fingerprint scannerSmart lock + doorbell + fingerprint scanner
AI Motion DetectionAI human recognitionAI human recognition
Weather ResistanceIP65 water resistanceIP65 water resistance
Video CallingSupports video calls via appSupports video calls via app
Mobile AppControlled via eufy Security appControlled via eufy Security app
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FAQ

What video quality do both the eufy S330 and E330 provide?
Both the eufy S330 and E330 feature 2K high-definition video resolution, which ensures that visitors’ faces, packages, and surroundings are captured with clear detail. This resolution makes it easier to identify people and improves the overall security experience.

Do both locks support two-way audio communication?
Yes, both models include built-in microphones and speakers that allow two-way audio. This means you can talk directly to visitors at your door through the eufy Security app, whether you are at home or away, providing convenience and security.

How do the eufy S330 and E330 handle unlocking methods?
Both the S330 and E330 support multiple unlocking options: fingerprint scanning, keypad codes, mobile app access, voice assistant control, and a traditional physical key. This flexibility ensures that users have backup methods and can choose the most convenient way to unlock the door.

Do the eufy S330 and E330 come with a built-in doorbell function?
Yes, both locks integrate a 2K video doorbell as part of their system. This means you do not need to purchase a separate video doorbell, as both provide live video, visitor notifications, and recording features in addition to the lock itself.

Are both the eufy S330 and E330 compatible with voice assistants?
Yes, both devices are compatible with Amazon Alexa and Google Assistant. This allows you to lock or unlock your door using voice commands, adding a layer of convenience for smart home users.

Do the S330 and E330 require a subscription to store videos?
No, neither model requires a subscription for video storage. Both provide free local storage solutions, allowing you to save and access video recordings without paying ongoing fees, which sets them apart from many competing smart locks.

How reliable is fingerprint recognition on both models?
Fingerprint recognition is equally responsive on the S330 and E330. Both models use biometric authentication that quickly unlocks the door, usually within a fraction of a second, ensuring secure and fast access for authorized users.

What kind of battery do the eufy S330 and E330 use?
Both models use a rechargeable 10,000 mAh battery. This high-capacity battery provides extended usage time between charges and ensures reliable operation even with video recording and smart lock functions enabled.

Are the eufy S330 and E330 weather-resistant?
Yes, both locks carry an IP65 water resistance rating. This makes them suitable for outdoor use, as they can withstand rain, dust, and varying weather conditions without losing performance.

Do both models support AI motion detection?
Yes, both locks are equipped with AI motion detection technology that helps identify human presence. This reduces false alarms caused by moving objects, pets, or passing vehicles, ensuring you only receive relevant alerts.

Can the eufy S330 and E330 operate in extreme temperatures?
Both devices are designed to work reliably in environments ranging from –10 °C to 50 °C. This allows them to perform consistently in both colder and warmer climates, making them suitable for most regions.

Do the S330 and E330 provide push notifications for visitors?
Yes, both models send real-time push notifications through the eufy Security app whenever someone approaches or rings the doorbell. This ensures you are always aware of who is at your door, even when you are away.

Do both models allow remote monitoring through the app?
Yes, both the S330 and E330 can be monitored and controlled remotely via the eufy Security app. You can view live video feeds, unlock or lock the door, and communicate with visitors directly from your smartphone.

Can both locks function as a 3-in-1 device?
Yes, both the eufy S330 and E330 act as a 3-in-1 smart device, combining a video doorbell, smart lock, and fingerprint scanner into one unit. This integration eliminates the need for separate devices and simplifies setup.

Do the S330 and E330 support video calling features?
Yes, both models allow video calls through the app, enabling you to interact with visitors in real-time. This adds an extra layer of convenience, making them function much like a smart doorbell combined with a secure lock.

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