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eufy SoloCam E42 vs eufyCam E40: Which Add-On Camera Is Better?

eufy SoloCam E42 vs eufyCam E40: Which Add-On Camera Is Better?

By eufy - Built with Care | Home Security System & Robovacs | Published: 2026-08-31

Category: Comparisons

Compare eufy SoloCam E42 and eufyCam E40 to find the best add-on camera for your home security setup.

Expanding your eufy security system often means choosing between the SoloCam E42 and the eufyCam E40. Both are designed as add-on cameras, but they serve different needs. Understanding their differences helps you pick the one that fits your home without overspending.

In this comparison, we break down battery life, storage, video quality, and smart features. We also share practical tips on how to integrate either camera into your existing eufy setup, whether you're using a HomeBase or going solo.

Design and Installation

The eufy SoloCam E42 is a self-contained unit with a built-in battery and local storage, so it doesn't require a HomeBase. This makes installation straightforward: mount it, pair it with the eufy Security app, and you're done. It's ideal for renters or anyone who wants a quick, standalone setup.

eufy SoloCam E42
eufy SoloCam E42

In contrast, the eufyCam E40 is designed to work with a HomeBase, which centralizes storage and extends battery life through efficient communication. If you already own a HomeBase, the E40 integrates seamlessly and can share storage and alerts. However, it requires an additional hub, which adds to the initial cost if you're starting from scratch.

  • SoloCam E42: No hub required, perfect for single-camera setups.
  • eufyCam E40: Best when you already have a HomeBase or plan to expand.

Battery Life and Power Options

Battery life is a critical factor for wireless cameras. The SoloCam E42 offers up to 180 days of battery life on a single charge, depending on usage. This is impressive for a standalone camera, but it can vary with motion events and live viewing. The eufyCam E40, when paired with a HomeBase, can last up to 365 days because the HomeBase optimizes communication and reduces power consumption.

Both cameras are battery-powered, but the eufyCam E40's longer battery life is a significant advantage if you have high-traffic areas or limited access for recharging. However, the SoloCam E42's simpler setup might be more convenient if you prefer a plug-and-play solution without the need for a hub.

  • SoloCam E42: Up to 180 days battery life.
  • eufyCam E40: Up to 365 days with HomeBase.

Video Quality and Field of View

Both cameras deliver 2K resolution, which provides crisp details for identifying faces or license plates. The SoloCam E42 offers a 135° field of view, while the eufyCam E40 provides a slightly wider 140° field. This means the E40 captures a bit more of the scene, which can be useful for covering large entryways or backyards.

Night vision is another differentiator. The SoloCam E42 uses infrared LEDs for black-and-white night vision, while the eufyCam E40 includes a built-in spotlight for color night vision. If you want to see what's happening in full color after dark, the E40 is the better choice. However, the spotlight can attract attention, which might not be ideal for all locations.

  • SoloCam E42: 2K, 135° FOV, infrared night vision.
  • eufyCam E40: 2K, 140° FOV, spotlight color night vision.

Storage and Smart Features

The SoloCam E42 has built-in 8 GB storage, which holds roughly 2-3 months of clips, and supports local storage via a microSD card (up to 128 GB). It also works with Amazon Alexa and Google Assistant for voice control. The eufyCam E40, when connected to a HomeBase, can leverage up to 16 GB of internal storage or expandable storage via a hard drive, depending on your HomeBase model.

Both cameras support human detection, motion zones, and customizable activity zones. The eufyCam E40 also offers advanced AI features like vehicle detection and facial recognition, but these require a HomeBase with the necessary processing power. If you want the most intelligent alerts, the E40 with a compatible HomeBase is the way to go.

  • SoloCam E42: 8 GB built-in, microSD expansion, smart assistant support.
  • eufyCam E40: HomeBase storage, advanced AI with compatible hub.

Choosing between the eufy SoloCam E42 and eufyCam E40 comes down to your existing setup and needs. If you want a simple, standalone camera with easy installation, the SoloCam E42 is a solid choice. If you already have a HomeBase or need longer battery life and color night vision, the eufyCam E40 is worth the extra investment. Both are reliable add-ons that enhance your home security.

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