(Pocket-lint) - The Ring Doorbell 3 and 3 Plus were announced earlier this year to replace Ring's premium line of video doorbells. Both currently have around 35 per cent off in early Black Friday sales, making them a really good deal. That will save you $60 and £60 on the Ring Video Doorbell 3 and $70/£70 on the Ring Video Doorbell 3 Plus.

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They both introduce dual-band Wi-Fi for increased performance while the 3 Plus also has pre-roll, where you can view a few seconds of video (in lesser quality) before the movement is detected. It means you can see how situations occur - like if someone scratches your car - that you'll see the seconds before the incident and not just when motion is already in view. 

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Both models now also feature an adjustable motion zone, called near zone. This can detect motion within 1.5 to 4.5-metres of the front door. Plus you can also exclude areas of the camera's field of view from video recordings.

Furthermore all other Ring products are reduced. The older Ring Video Doorbell (2nd Gen) is also discounted as part of Amazon's Black Friday deals, making it a steal.

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Other highlights include the Ring Doorview Cam, which replaces a peephole with a camera.

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We're expecting there to be a lot more discounts on Ring devices for Black Friday this year and we'll be keeping track of all the best deals on Ring doorbells and devices.

Writing by Dan Grabham. Editing by Mike Lowe.