eufy Video Doorbell C31

Pros

• Subscription ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 5.0
• Ongoing ownership costs ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.8
• Power Options & Compatibility ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.6
  Dual power support lets the C31 run on battery or wired power, charging the pack while wired and switching to battery automatically during outages.
• Storage ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.6
• Complete kit in box ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6
• Field of view & framing ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6
• Peace of mind ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.6
• Notifications ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Pre-roll buffer ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Snapshot capture ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Installation & Mounting ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.4
  A simple bracket, angled wedge, and included wiring accessories make mounting straightforward, though wiring a jumper is needed to unlock 24 by 7 recording.
• 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.
• Object & person detection ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.4
• Weather & temperature tolerance ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.3
• Battery & Charging ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.2
  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.
• Recording ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.1
• Motion-detection customization ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• Quick-reply / pre-recorded message usefulness ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• Security ecosystem integration ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• Motion detection performance ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.0
  PIR based motion detection is quick and tunable but, as testing showed in delivery clips, it can start recording a beat late compared with the dual camera E340, especially when someone just drops a package and leaves.
• Audio ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.9
  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.
• Low-light & Night vision ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.9
  Four IR LEDs provide usable monochrome night footage where familiar faces are recognisable at close range, though heavy compression can smear finer details in darker scenes.
• Reliability (general) ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.9
  In everyday use the C31 generally does what you expect, alerting you to visitors and recording clips, though occasional late motion triggers and minor AV sync quirks mean it is better suited to casual monitoring than critical evidence gathering.
• Base / Hub integration ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.9
• App, software & firmware ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.8
  Setup is quick via QR and the app exposes extensive controls for zones, schedules and chimes, but with dozens of options and nested menus it can feel busy and not especially user friendly once you start tweaking.
• 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
  The 2K 2048 by 1536 sensor can produce reasonably sharp daytime clips, yet aggressive compression keeps file sizes tiny and can make both day and especially night recordings look softer and more blocky than the resolution suggests.
• AI features ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 3.5