
Reolink 2K Battery Video Doorbell
Score: 85/100
eufy Security C31
Score: 82/100Rankings

The Reolink 2K Battery Video Doorbell Camera is a wireless security device featuring a unique 1:1 square aspect ratio and 2K resolution to provide a head-to-toe view of visitors and packages. It offers flexible installation via a rechargeable 7000mAh battery or hardwired connection, along with local storage options that eliminate mandatory subscription fees. It is ideal for package-conscious homeowners who prioritize seeing ground-level items.

The eufy Security C31 is a versatile 2K FHD doorbell with a unique 4:3 aspect ratio for full vertical coverage and dual power options. It offers robust features like AI detection and local storage without subscription fees, though hardwiring can be complex. It is ideal for homeowners seeking flexible power solutions and comprehensive front door monitoring.
| Attribute | ![]() | ![]() |
|---|---|---|
4 MPbest | 2 MP | |
150 degreesbest | — | |
15 fpsbest | — | |
| ↓ lower better | 231 gramsbest | 399 grams |
-10 °Cbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Network & Connectivity(1) | ||
Wi-Fi Standard | 2.4/5 GHz | null |
Camera(4) | ||
Video Resolution (MP) | 4 MP | 2 MP |
Field of View (degrees) | 150 degrees | null degrees |
Frame Rate (fps) | 15 fps | null fps |
HDR Support | true | null |
Build & Design(2) | ||
IP Rating | IP65 | null |
Weight (grams) | 231 grams | 399 grams |
General(1) | ||
Operating Temperature (°C) | -10 to 55 °C | null °C |

Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the Reolink 2K Battery Doorbell's unique 1:1 aspect ratio and wide field of view as a distinctive advantage over traditional widescreen doorbells, effectively capturing both visitor faces and ground-level packages. The HDR functionality is specifically praised for handling challenging lighting conditions. However, reviewers note that the 15 fps frame rate at 2K resolution is a practical limitation, positioning the device in a mid-tier performance segment rather than a premium high-frame-rate category.
Users generally praise the head-to-toe vertical format for capturing complete views of visitors and packages, as well as the absence of mandatory subscription fees for local storage. The smart detection features are valued for providing evidence of deliveries. Recurring concerns include the modest 15 fps frame rate, the need to adjust to the non-standard square format, and the maintenance overhead of recharging the battery compared to hardwired options.




Everyday consumers commonly praise the easy setup, clear 2K video quality, and the cost savings from avoiding subscription fees. Recurring themes include satisfaction with the 4:3 view and night performance.