Cover your home inside and out with Arlo's 4K Ultra 4-camera home security system at a record-low price

You may have kitted your house out with a bunch of smart home tech, but have you spared a thought for your home security system? Instead of settling for an old or unreliable alarm, you really ought to upgrade to something like Arlo's Ultra camera system (opens in new tab) — especially with discounts of up to $100 at Amazon right now. The new UHD Arlo cams haven't seen many significant discounts since their release late last year, so the below deals are worth jumping on while you can. The four-camera set (opens in new tab) is down to $899.99 — its best price to date at $100 off its usual going rate. Other configurations are also on sale, such as the three-camera system (opens in new tab) which is within $10 of its lowest price.

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Arlo Ultra 4-Camera System (opens in new tab)

Arlo's top-of-the-line Ultra cameras have 4K resolution, a 180-degree field of view, 2-way audio, night vision, Alexa compatibility, and much more. This kit comes with four weather-resistant cameras and the necessary base station to get them set up.

The biggest upgrade over the previous Arlo Pro 2 (opens in new tab) is in the resolution. This is Arlo's first security camera to have 4K resolution and HDR image processing. Arlo believes users will be able to use the resolution to pick up on critical details they may have otherwise missed, like license plate numbers or clothing, when identifying suspicious activity.

The cameras have a 180-degree field of view, automatic zoom and tracking, dual microphones, and more. The Ultra also has a spotlight integrated into it. Previously, to have a light, you had to buy the Arlo Smart Home Security Light (opens in new tab) and sync it with your system. Other features include color night vision and custom activity zones you can set yourself. The two-way audio includes advanced noise cancellation to minimize background noise and allow clear, natural conversations from both sides of the camera.

As with the previous-gen cameras, you can use the Arlo Ultra security camera inside or out. The new magnetic mounts allow you to attach the cameras anywhere you want, including walls, ceilings, or gutters. They come with weather-resistant charging cables so you can keep the batteries charged even outdoors. You can compare all of the key differences between the Arlo Ultra and Arlo Pro 2 here.

The Ultra cams connect to the new Arlo SmartHub. The included base station connects to your router, provides extended Wi-Fi range for Arlo cameras, and allows you to manage the camera's data traffic. The SmartHub can control multiple Arlo cameras, so you can feel free to pick up more cameras during Black Friday to add to your setup. It also has a microSD card slot for local storage. You'll probably want a couple of large microSD cards (opens in new tab) to use with the hub so you don't have to keep absolutely everything in the cloud.

Adam Oram is a Senior Writer at iMore. He studied Media at Newcastle University and has been writing about technology since 2013. He previously worked as an Apple Genius and as a Deals Editor at Thrifter. His spare time is spent watching football (both kinds), playing Pokémon games, and eating vegan food. Follow him on Twitter at @adamoram.