eufy Video Doorbell C31

Pros

• Subscription ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 5.0
  The C31 relies on local micro SD or HomeBase storage and does not require a paid cloud subscription, so once the hardware is purchased there are effectively no ongoing recording fees.
• Ongoing ownership costs ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 5.0
• Complete kit in box ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6
• Peace of mind ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6
• Notifications ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
  In testing the doorbell’s notifications arrived quickly, with options for direct phone calls or rich app alerts that first send a text style notice followed by a snapshot, and wired operation further improves the speed of these alerts compared with battery mode.
• Snapshot capture ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Weather & temperature tolerance ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Installation & Mounting ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.4
• Power Options & Compatibility ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.4
• Price & value ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.4
  Official pricing puts the C31 in mid range territory, but Amazon discounts that drop it to roughly sixty five make its local storage, dual power design and no subscription model feel like solid value for a straightforward doorbell.
• Low-light & Night vision ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.4
• Storage ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.4
  The doorbell records locally to a micro SD card up to 128 GB tucked behind the battery and can also send clips to a HomeBase 3 that doubles as an indoor chime, giving users flexible local storage without requiring a cloud plan.
• Battery & Charging ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.3
  A removable 6500 mAh battery pack with built in USB C charging and optional spares makes it easy to keep the doorbell powered, typically needing only occasional eight hour top ups even if you also wire it to trickle charge from existing doorbell circuits.
• Object & person detection ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.2
• Base / Hub integration ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.2
• Reliability (general) ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.1
  In everyday use the C31 generally does what you expect, alerting you to visitors and recording clips, and while occasional late motion triggers and minor AV sync quirks mean it is better suited to casual monitoring than critical evidence gathering, this review also found it pretty responsive with fast alerts especially when wired.
• Recording ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.1
• Pre-roll buffer ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
  When the C31 is wired with a jumper installed it enables a roughly five second pre roll buffer so clips include the moments leading up to motion or a button press, a feature that is not available in pure battery mode or when relying solely on HomeBase 3 for recording.
• Quick-reply / pre-recorded message usefulness ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• Security ecosystem integration ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• App, software & firmware ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.8
• Motion detection performance ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.8
  PIR based motion detection is quick and tunable and, while earlier delivery tests showed it could start recording a beat late compared with the dual camera E340 when someone just drops a package and leaves, this review’s porch pirate and doorbell press tests found it generally triggered and alerted promptly in both battery and wired modes.
• Smart-home integration (Alexa, Google, Siri, HomeKit, Matter, Thread) ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.8
  The doorbell integrates with the Eufy ecosystem and Amazon Echo devices so chimes can play on smart speakers, though Alexa currently announces its long model number rather than a simple front door name and there is still no smart lock integration.
• Video resolution & detail ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.7
• Audio ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.6
  Two way audio is full duplex and about as clear as a typical phone or laptop speaker, but multiple test recordings showed slight audio video sync issues when clips were played back, and this review notes that while two way talk sounds decent in real use the saved clips still only include the doorbell side of the conversation.
• AI features ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.5
  On its own the C31 only offers basic person detection, but when linked to HomeBase 3 it gains BionicMind AI that can distinguish people, pets and vehicles, though there is still no dedicated package detection so deliveries are treated like general motion events.