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(Pocket-lint) - Ring announced two new versions of its premium battery powered smart doorbells last year - the Ring Video Doorbell 3 and Ring Video Doorbell 3 Plus.

Earlier this year Amazon-owned Ring followed them up with the Ring Video Doorbell 4, a slightly upgraded model which appears to have replaced the 3 Plus sitting above the Doorbell 3 in Ring's range. 

Here we're comparing all three models. 

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What's the same? 

  • Battery-powered with a removable, rechargeable battery
  • 1080p Full HD video
  • 2.4 and 5GHz Wi-Fi for a more stable connection
  • Advanced Motion Detection, Near Motion Zone, People Only Mode, Privacy Zones
  • Amazon Alexa and Echo Show/Fire TV support
  • Weather-resistant with interchangeable plates

All of these doorbells offer improvements over the older and now-defunct Ring Doorbell 2, notably the addition of 5GHz Wi-Fi (in addition to 2.4Ghz) and Advanced Motion Detection, which we'll come onto in a second. That will be useful in homes where there has been an issue getting connectivity between a doorbell and router. 

They also boast support for 1080p Full HD video. 

All of these doorbells are battery-powered like the now discontinued Ring Video Doorbell, Ring Video Doorbell 2 and the still-available Door View Cam. There's a removable battery pack that you'll need to charge up via USB every so often. Coincidentally, the cheapest battery-powered Ring Doorbell, the Ring Video Doorbell (2nd gen), has to be taken off the wall to be charged - the battery can't be removed. 

The Ring Video Doorbell Wired, Pro, Pro 2 and Elite are also mains powered instead. 

All of Ring's range now includes Advanced Motion Detection (enabling you to choose People Only mode for motion alerts) and a new, adjustable motion zone, called Near Motion Zone. This detects motion within 1.5 to 4.5m of the front door, but you really can fine-tune it. 

There's also the ability to have Privacy Zones so you can exclude areas of the camera field of view from recording should you want to prevent something from being recorded. You can also turn off video or audio recording at any time.

As with other Ring doorbells, you can simply say, "Alexa, show me the front door," to see your Ring Video Doorbell 3’s Live View on Fire TV or Echo Show devices. You can also say, "Alexa, answer the front door," to begin speaking with whoever is at their door.

Unfortunately, like other Ring devices, there's no compatibility with Google Assistant or Apple HomeKit. With Linked Devices in the Ring app, you can link your doorbell to compatible Ring Cams to create a single security system.

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What's different between these three doorbells? 

  • Pre-roll is available on the Ring Video Doorbell 3 Plus in black and white
  • Pre-roll is available on the Ring Video Doorbell 4 in colour
  • Pre-roll isn't present on the Ring Video Doorbell 3

The key feature that's missing from the Ring Video Doorbell 3, but present on the 3 Plus and 4 is Pre-Roll. This captures video constantly, meaning that when you get a motion alert it enables you to see the four seconds before you get the alert. 

In other words, you can see what caused the alert in the first place. So as well as seeing the delivery driver by your door, you can now see them walk down your path, too. It's also so you can see the whole of an incident rather than just the end of one. However, the video quality is not Full HD, while there's also no audio for it. 

It's also in black and white only on the 3 Plus, while it's in colour on the Ring Video Doorbell 4.

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Conclusion

At present, there isn't a great deal of difference between the Ring Video Doorbell 3, 3 Plus and 4. The key feature is Pre-roll, which isn't present on the Ring Video Doorbell 3, is black and white on the Ring Video Doorbell 3 Plus but is colour on the Ring Video Doorbell 4.

You can see why Amazon appears to be removing the 3 Plus from the range since it's so similar to both of the others. 

If you're not that fussed about Pre-roll, then consider the entry-level Ring Video Doorbell (2nd gen) which is significantly cheaper. However, it doesn't come with a removable battery so you have to take the doorbell off its mount to charge it.  

A recently updated Ring Chime and Chime Pro are available too, to alert you at other places inside your home. The Ring Chime Pro once again is a Wi-Fi extender as well as a simple doorbell chime, while it additionally now has a night light. Both have been redesigned to be more aesthetically pleasing, with an Amazon Echo-style fabric panel.

Writing by Dan Grabham. Editing by Britta O'Boyle. Originally published on 29 April 2020.