eufy Doorbells Compared: Which Model Gets Closest to 4K Clarity?

Best for
Dedicated wired setups wanting HDR video

Best for
Busy families wanting quick fingerprint entry

Best for
Front entries requiring keyless entry and surveillance

Best for
Homeowners wanting continuous 24/7 hardwired recording

Best for
Porch monitoring and package tracking

The eufy Security Video Doorbell E340 serves as the flagship option for homeowners wanting comprehensive porch awareness. As a dedicated eufy dual camera doorbell, it solves the traditional blind-spot dilemma by pairing an upper 2K camera with a secondary downward-angled camera. The primary lens delivers 1440-pixel effective still resolution to capture approaching guests from head to toe, while the companion lens keeps constant watch over boxes placed flat against your doorstep. This dual-lens layout captures essential delivery activity that single-lens units frequently miss.

Nighttime performance on the eufy Security Video Doorbell E340 is driven by an industry-first dual-light illumination setup and advanced light-capturing algorithms. This setup produces color night vision with reduced blur across distances reaching up to 16 feet. Power management is exceptionally versatile: you can run the hardware untethered using the quick-release rechargeable battery pack or wire it directly to standard 16 to 24-volt transformer wiring for continuous maintenance-free trickle charging.

Local data handling is another standout attribute. The unit includes 8GB of internal eMMC storage, allowing recorded clips to remain safely inside your home without recurring subscription charges. It integrates smoothly with Amazon Alexa, Google Assistant, existing mechanical chimes, and the expandable eufy HomeBase 3 hub, making it an outstanding centerpiece if you plan to link it with an existing eufy camera system with doorbell setup.

• Dual-camera optical system with dedicated head-to-toe visitor and downward package tracking
• Color night vision utilizing a dual-light illumination system effective up to 16 feet
• Built-in 8GB eMMC local storage requiring no recurring monthly subscription fee
• Flexible dual-power operation supporting wire-free battery mounting or 16–24V hardwiring

The eufy Security Video Doorbell C31 is tailored for homeowners who demand continuous around-the-clock monitoring in a streamlined, traditional profile. Operating at 2K Full HD resolution with a 4:3 viewing ratio and 1080-pixel effective still resolution, this model produces well-proportioned vertical coverage of approaching visitors. When an individual presses the button, the system triggers a real-time pop-up video call directly to your connected smartphone, enabling rapid two-way conversations, automated quick responses, or recorded voice message prompts.

Power flexibility makes the eufy Security Video Doorbell C31 a capable option for both tenants and permanent owners. It houses a removable 6,500mAh rechargeable battery for straightforward wireless mounting. When connected to existing doorbell transformer wiring with the battery in place, it unlocks non-stop 24/7 video recording alongside a five-second pre-roll buffer on motion-activated events. Note that continuous recording requires bypassing your existing mechanical indoor chime, and standalone local video saving requires installing your own compatible micro SD card.

Smart home integration covers Amazon Alexa and Google Voice Assistant platforms, alongside pairing support for the eufy HomeBase S380 and the MiniBase Chime. For shoppers looking for an alternative to bulkier dual-camera chassis, the C31 offers continuous video capture in a standard single-lens form factor.

• Continuous 24/7 video recording and five-second pre-roll capture when wired to existing connections
• Vertical 4:3 aspect ratio delivering clear head-to-toe viewing in 2K resolution
• Quick-release 6,500mAh rechargeable battery pack for flexible wireless placement
• Instant smartphone video call alerts with pre-programmed quick responses and voice messaging

The eufy Security Video Smart Lock E40 combines three essential front-door devices into a singular exterior fixture: a 2K surveillance camera, a video doorbell button, and a heavy-duty motorized deadbolt. Rather than mounting a standalone doorbell beside a separate deadbolt lock, this unified design secures your entryway while maintaining clear video observation. It features an expansive 135-degree head-to-toe perspective, giving you visual confirmation of visitors and package placements right at your door threshold.

Entry convenience is anchored by advanced hands-free facial recognition technology. The system identifies household members reliably across varying daily conditions to unlock the door smoothly as you approach. To prevent erratic motion alerts, the lock integrates a high-precision 60 GHz radar sensor that isolates human presence while filtering out windblown trees, passing vehicles, and small pets. It comes equipped with 32GB of built-in local storage, keeping access logs and entry video secure on-device with zero ongoing subscription requirements.

Power management uses a high-capacity 15,000mAh main rechargeable lithium cell that delivers up to six months of operation, backed by an internal 800mAh secondary reserve cell that takes over if the primary battery drains. The lock is rated IP65 weather-resistant, withstands extreme temperatures from -22 to 158 degrees Fahrenheit, supports Matter integration across Apple Home, Google Home, and Alexa, and installs easily onto standard single-cylinder deadbolt cutouts without drilling.

• All-in-one entrance hardware combining 2K video monitoring, a doorbell button, and a smart lock
• Fast, hands-free facial recognition unlocking engineered for natural keyless family access
• High-precision 60 GHz radar sensing that minimizes false notifications from pets and weather
• Robust dual-battery architecture featuring a 15,000mAh primary pack and an 800mAh reserve cell

The eufy Security Video Smart Lock E330 presents another all-in-one access solution, trading facial recognition for an ultra-responsive biometric fingerprint scanner. The integrated camera captures clear 2K resolution footage backed by a fast f/1.6 optical aperture lens. This wide aperture allows more ambient light to hit the image sensor, generating cleaner evening video with less digital grain when monitoring your front porch. While distinct from a specialized eufy door handle lock, the E330 replaces your existing exterior deadbolt mechanism entirely.

Biometric security on the E330 allows family members to unlock the door in mere seconds using the integrated touch sensor. The device also accommodates entry through the illuminated keypad, remote access via the mobile application, voice commands through Alexa or Google Assistant, and two traditional physical backup keys included in the box. Real-time push notifications transmit thumbnail image previews, which are temporarily stored in the cloud to provide quick visitor identification before you open the live video feed.

The hardware is powered by an internal 10,000mAh rechargeable battery pack engineered to sustain the dual demands of motorized bolt movements and Wi-Fi video streaming. Construction meets rigorous BHMA Grade 3 operational standards and features IP65 weatherproofing to handle heavy rainfall and temperature swings. Installation typically takes approximately 15 minutes on standard residential deadbolt preparations without requiring extra drilling.

• Integrated 2K front-door camera featuring an advanced f/1.6 lens aperture for superior low-light capture
• Rapid biometric fingerprint recognition paired with a digital keypad and physical keys
• Long-lasting 10,000mAh rechargeable battery pack engineered for daily locking and video demands
• Durable exterior housing with BHMA Grade 3 certification and IP65 weather resistance

The eufy Security Video Doorbell (wired S330 model) is a permanent hardwired fixture built specifically for homes with existing low-voltage chime wiring. It features a high-performance dual-camera array running 2K resolution with High Dynamic Range (HDR). HDR processing balances uneven porch lighting, preventing visitors standing in direct sun from appearing washed out while lifting deep shadows across covered doorways. This delivers visual clarity that rivals higher pixel-count cameras operating under challenging daytime lighting.

Porch management on this hardwired model relies on eufy Delivery Guard technology. The downward package camera actively tracks parcel drop-offs, generates real-time arrival notifications, provides pick-up reminders, and issues alerts if someone approaches to tamper with a box. A three-second pre-roll capture feature records preceding activity before motion events fully trigger, ensuring you never miss approaching footsteps. Note that this specific wired model does not support eufy HomeBase pairing and relies on standalone motion alerts.

The unit requires an existing 16 to 24-volt transformer running at 30VA to maintain steady performance. Because hardwired power eliminates battery constraints, the camera remains constantly alert and ships with a dedicated indoor digital chime unit in the package to ensure you hear visitor alerts reliably throughout the house.

• Dual-lens optical system featuring 2K resolution augmented with High Dynamic Range processing
• Delivery Guard package protection system with arrival reminders and tamper alerts
• Three-second pre-roll video recording capturing motion before an event officially begins
• Dedicated wired installation compatible with standard 16–24V transformer setups

The eufy Video Doorbell Chime 2 is a dedicated companion accessory designed to solve the common issue of missed doorbell rings inside larger residences. While video doorbells send push alerts to mobile phones, relying solely on mobile notifications can lead to delayed responses when your phone is silenced or charging in another room. Adding an indoor eufy door chime restores traditional whole-home audible alerts so everyone in the household knows instantly when a guest arrives.

Equipped with an adjustable speaker capable of broadcasting ringtones at up to 80 decibels, the Chime 2 carries sound cleanly across spacious floor plans and between separate levels. It offers 10 built-in ringtones, allowing you to select tones that suit your household preferences. The hardware incorporates a specialized motion sensor feature and plugs directly into standard indoor electrical wall outlets, maintaining an uninterrupted power connection without needing battery upkeep.

Connectivity is exceptionally stable thanks to dual-band Wi-Fi support across both 2.4 GHz and 5 GHz networks. This dual-band capability prevents network congestion and reduces response latency between the doorbell button press and the audible chime. Pairing the accessory with your existing compatible eufy video doorbell takes only minutes using Bluetooth auto-discovery via the companion smartphone application.

• Powerful internal speaker with adjustable volume settings reaching up to 80 decibels
• Dual-band Wi-Fi compatibility supporting both 2.4 GHz and 5 GHz network frequencies
• Ten selectable pre-installed alert melodies for versatile home sound customization
• Simple Bluetooth auto-discovery and direct wall-outlet corded electric power design