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Google Nest (NC5100US) Hello Smart Wi-Fi Video Doorbell, Black

by Nest
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Nest - NC5100US - Hello Smart Wi-Fi Video Doorbell

Nest Hello lets you know who’s there, so you never miss a thing. It replaces your existing wired doorbell and delivers HD video and bright, crisp images, even at night. It’s designed to show you everything at your doorstep – people head to toe or packages on the ground. And with 24/7 streaming, you can check in anytime. Or go back and look at a 3-hour snapshot history to see what happened.

  • Versatile smartphone compatibility
Supports select Apple iOS and Android devices.
  • Wi-Fi connectivity
Use your home network to easily sync your doorbell to your smartphone or tablet.
  • Manage your doorbell with the Nest mobile app
Receive alerts, accept the live video feed and speak with your visitor all from your smartphone. Free app download required.
  • 24/7 streaming

Check in anytime and view a 3-hour snapshot history to see what you missed.

  • HD talk and listen
Hear visitors loud and clear with noise and echo cancellation.
  • Person, motion and sound alerts
Detect when someone may be waiting at your door, even before they ring the doorbell.
  • Night vision
Features 850 nm infrared LEDs.
  • Mounting kit included
Requires a wired doorbell and chime.
  • Quick response
Respond to visitors with convenient pre-recorded messages, even when you can't answer.
  • Keep data safe and private
Your video stays safe in the cloud.
Nest NC5100US Specs

 Image Sensor

1/3" 3 MP (2K) color sensor

 Digital Zoom


 Video Resolution

1600 x 1200 (UXGA)

 Frames Per Second (FPS)

Up to 30 fps

 Video Compression




 Diagonal Field of View (FOV)


 Two-Way Audio


 LED Indicator

RGB light ring and status light

 Night Vision

850 nm infrared LEDs


128-bit AES with TLS/SSL


Wi-Fi 802.11a/b/g/n/ac, 2.4 or 5 GHz (WEP, WPA, WPA2 encryption supported)
Bluetooth Low Energy (BLE)
802.15.4 at 2.4 GHz

 Product Requirements

Requires doorbell wiring and chime

 Connectivity Requirements

Wi-Fi 802.11a/b/g/n/ac, 2.4 or 5 GHz (WEP, WPA, WPA2 encryption supported)
Working broadband internet connection with at least 2 Mb/s upload speed (DSL may not qualify)
Requires a compatible phone or tablet (iOS or Android) with the free Nest app and Bluetooth 4.0


At 1600 x 1200, Nest Hello requires 800 to 2000 kb/s of upload bandwidth while streaming video. Nest Hello will use more bandwidth to stream video when there is more motion in the scene. 

If you subscribe to Nest Aware, your Nest Hello streams all video to the cloud for secure offsite storage. At 1600 x 1200, each Nest Hello could use 150 GB to 600 GB of upload bandwidth per month depending on the video quality setting.


English (US, UK), French (Canada, France), Spanish (Americas, Spain)

 Green Compliance

RoHS, REACH, Title 20 battery charger compliant, recyclable packaging

 Operating Temperature

-4 to 104°F / -20 to 40°C

 IP Rating


 Power Requirements

16-24 VAC
Requires a 10 VA transformer and doorbell wiring


1.7 x 4.6 x 1.0" / 4.3 x 11.7 x 2.6 cm
 Weight 4.28 oz / 121.6 g
 Packaging Info

 Package Weight

1.15 lb

 Box Dimensions (LxWxH)

6.6 x 5.0 x 2.8"

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