Sadly arlo have not developed a fix for activity zones. Hence they are non existent, I reported this to arlo for over 4 months but still no solution. Cameras recorded everything in view, batteries drained in five days. Check out the forum. This is a common problem.

Arlo Ultra simply is the best wireless security cameras you can get at the moment. It has 4K HDR recording support (local & cloud), great design, impressive operating temperature (-20 to 60 degree Celsius), and Smart AI features that can differentiate between people, animals, vehicles, and packages...

Bought a pack of these after reading mostly good reviews. It was horrendous. Would constantly disconnect. Wouldn't load. We couldn't even get it to work long enough for us to see if we were placing it in a good spot to then secure it. Returned and bought another brand which has been perfect!

You'll pay a premium for the Arlo Ultra, but you get a lot for your money. This is the first security camera we've tested that streams and records 4K video, and there are no wires to deal with, making installation a snap.

No wires; Weatherproof; Detailed 4K imagery with a wide field of view; Color night vision; AI-based motion detection; Integrated spotlight; Auto-zoom and motion tracking; Amazon Alexa, Apple Watch, and Google Assistant support

Expensive; Requires a hub; Some features require a subscription

With its teething problems now -- hopefully -- behind it, the Arlo Ultra proves to be an impressive and versatile security device. It's expensive, and might be a case of overkill for homes and small businesses that don't want to pay the premium subscription fees.

High-quality 4K video camera; with HDR; 180-degree panoramic video; with 12x digital zoom; Integrated spotlight and siren; Colour night-vision

Expensive; Requires subscription after 12 months; 4K online storage costs extra

The Arlo range of security cameras has been a big success for Netgear in recent years -- so much so that the company decided to spin-off the Arlo division and float the new Arlo Technologies Inc. on the stock exchange last summer.

High-quality 4K video camera; with HDR; 180-degree panoramic video; with 12x digital zoom; Integrated spotlight and siren; Colour night-vision

Expensive; Requires subscription after 12 months; 4K online storage costs extra

Ultra is packed with features and offers one of the best ecosystems for a security camera, if you can afford it.

4K in home security is finally here, thanks to Arlo's Ultra UHD smart cam

Beautifully crafted hardware design; Weatherproof and wireless for indoor/outdoor use; Fabulous 180-degree field of vision with little fish-eye distortion; Decent two-way audio; 4K UHD image clarity

Some features unavailable when using 4K video settings; No ability to view locally stored video without removing the microSD card; Double-tiered subscription required for 4K cloud recording

The Arlo Ultra represents some of the best outdoor security video that you'll find. The combination of 4K and HDR, good night vision and control over motion detection and the notifications you can receive all goes some way to justifying the lofty price.

Video quality is superb with 4K HDR; Lots of features; Easy mounting and installation; Works with wider Arlo system

High price; Needs subscriptions; Caveats on features; Mounting not secure; 4K live stream is hit and miss

The Nest Cam IQ Indoor was the first security camera that I tested to have a 4K sensor, although this model downsampled all footage to 1080p. That makes the Arlo Ultra the first camera I've reviewed to be able to save 4K footage, delivering some of the most impressive and detailed images that I've...

Easy to install; Excellent 4K footage; Powerful modes gives you complete control over recording

No 4K recording out of the box; 4K streaming disables motion tracking