eufy Video Doorbell C31 Review: Pros, Cons, Common Issues & Is It Worth It?

2K  |  Wired or battery  |  2.4GHz Wi-Fi  |  microSD up to 128GB  |  24/7 when wired

Overview

The eufy Video Doorbell C31 is a single-camera 2K doorbell that runs wired or on its removable battery, with 24/7 recording when hardwired and a live video-call feature for answering the door from your phone. It stores to a microSD card with no subscription.

Key Features

Setup & Compatibility

Set up in the eufy Security app on 2.4GHz Wi-Fi. It works with your existing chime, a eufy MiniBase Chime or HomeBase. Fit a microSD card up to 128GB, or use a HomeBase. Note it isn’t compatible with Apple HomeKit.

What’s New

The C31 brings 24/7 wired recording and a live video-call answer feature to an affordable single-camera doorbell with microSD storage.

Pros & Cons

Is Eufy Safe? The Privacy History Explained

Eufy markets its cameras on privacy and local, subscription-free storage, but it’s worth knowing the background. In November 2022 a security researcher found that some eufy cameras uploaded thumbnail images to the cloud even when cloud features were switched off, and that camera streams could in some cases be viewed without authentication by anyone with the right link. In January 2023, eufy’s parent company Anker acknowledged to The Verge that its cameras were not natively end-to-end encrypted at that time.

In January 2025 the New York Attorney General secured a $450,000 settlement with the companies distributing eufy products over these security findings, requiring them to strengthen their security programme and encrypt video in storage and transit.

Since then eufy has moved its cameras to encrypted-by-default streaming, applied AES-128 and RSA-1024 encryption on HomeBase 3, run third-party security audits and launched a bug-bounty programme. If subscription-free local storage and strong privacy are the reason you’re looking at eufy, it’s sensible to keep firmware up to date and review your cloud and notification settings. We think the current products are a reasonable choice, but we’d rather you knew the full history and decided for yourself.

For more, see our full Is Eufy Safe? explainer.

Common Problems & Fixes

Running into issues? Our eufy Video Doorbell C31 troubleshooting guide has step-by-step fixes for offline errors, Wi-Fi, storage, motion, night vision and more — all verified against eufy’s official support.

Real World Performance

The C31 is a strong-value doorbell — you get 2K, the choice of wired 24/7 or battery, and microSD storage with no subscription or hub. It’s single-camera, so it won’t watch the doorstep floor like the dual-camera E340.

Best Alternatives

eufy Video Doorbell E340 →eufy Video Doorbell C30 →Tapo D130 →

Who Should Buy It

A good choice if you want an affordable 2K doorbell with wired 24/7 recording or battery flexibility and microSD storage.

Verdict

The eufy Video Doorbell C31 is great value — 2K, wired-or-battery with 24/7 recording, and microSD storage with no subscription.