Why Does The iPhone Have 3 Cameras: What’s The Purpose?

by John Sanderson
Why Does The iPhone Have 3 Cameras

Do you ever wonder why the iPhone has 3 cameras? What’s the purpose of having that extra camera on the back of your phone? This blog post will explore the different functions of each of those cameras. We will also discuss why Apple decided to include a third camera on their latest iPhone XS model. Stay tuned to learn more!

Why Does The iPhone Have 3 Cameras?

3 cameras on the back of your iPhone X? It is more than just a simple upgrade. Apple has added an extra camera sensor that will allow new technology, like taking photos in portrait mode with all three sensors working together, and improved Portrait Mode during the day and night time photography.

1. 2X Optical Zoom

The main reason for adding the third camera on the back is optical zoom. You can get way closer to an object without losing detail at 2x optical zoom, which you could only get at 1x before with digital zoom, which was highly pixelated compared to this new feature.

2. True depth camera that enables depth detection for Portrait mode shots

This is Apple’s first use of a depth camera. It allows for better Portrait Mode shots as it uses both cameras to find the depth and shape, creating a professional-looking image.

3. Improved low light photography

The 3rd camera adds more pixels to each photo giving you better low light performance compared to the iPhone 8 Plus, which is limited. This one extra lens will allow Apple to blur backgrounds not just on humans but on anything that they wanted to do so in the future with this new technology.

4. To power all these new features, an A11 Bionic Chip needed

To run this new system smoothly and quickly, you need more than the current chip powering your phone, so Apple added another high-end chip to their already industry-leading A11 chip.

How Works Iphones 3 Camera

3 types of cameras came with the iPhone. Let’s take a look at all five and their features below:

Front Camera

This camera is used for FaceTime and selfies (iPhone 4 onwards). It has a resolution of 1.2 MP. The front camera can shoot HD video at 720p.

Second Camera

This camera allows the user to zoom in up to 3x without losing image quality and provides high-quality video recording even when zoomed in. Furthermore, this second camera takes pictures much faster than other iOS devices, which means you won’t miss those precious moments due to the time it takes to take an iPhone picture versus other types of cameras. The resolution ranges from 1.2 MP to 8 MP, depending on the iPhone model in question.

Third Camera

This camera enables an augmented reality technology that allows you to take 3D photos and videos with the help of a specialized dual-lens system, true tone flash, face detection, backside illumination sensor, tap to focus, exposure control for video recording. The resolution is not known at this time, but it’s most likely between 8MP-12 MP.

Some Features Of iPhone Camera

Optical Image Stabilization (OIS)

What does that mean? OIS helps reduce blur in your images by compensating for hand movement when taking pictures or videos while moving around. This is quite different from digital image stabilization, which is used more in the video.

Telephoto Lens

Similar to the second camera, the telephoto lens enables the user to zoom in up to 10x without losing image quality and provides high-quality video recording even when zoomed in. The resolution ranges from 8 MP to 12 MP, depending on the iPhone model in question.

Slow-Mo Video

Recording allows you to record slow-motion videos at either 120 fps or 240 fps. The frame rate of a standard video is 30 frames per second (FPS). This means a slow-motion effect can be added by playing back a recorded video more slowly than recorded, although some cameras now have higher frame rates, such as 60 FPS and 120 FPS for more realistic slow motion. The resolution of the slow-motion video is 12 MP.

Some Comparison to other smartphones

But there are some differences between iPhone’s camera and Android’s. The following list will discuss three main differences: price, lossless zoom, image quality.


The first difference involves price. Generally, an iPhone costs more than its Android counterpart due to the Apple brand name only (a similar trend exists with other products manufactured by Apple). However, this does not mean that the Android phone is a bad deal. Some Android devices may be cheaper than iPhones and yet provide similar features. The price difference results from Apple enforcing their brand name and adding extra features to their product, even if those features are not necessary.

Lossless Zoom

Another difference involves lossless zoom. Unlike the iPhone’s camera, the one included in an Android device does not include this feature – it merely has digital zoom, which decreases image quality by “interpolating” data to make up for what was lost during zooming (a pixel-mixing process). This means that if you want a better picture or video, you must stand further away from your subject.
However, a few Android devices do have lossless zoom. For example, the LG G3 and Xperia Z1 both have this feature.

Image Quality

The last difference concerns image quality. Generally speaking, iPhones take better photos than Android phones due to the more advanced features included with iOS 7 (the latest version of Apple’s operating system). One example is exposure control, where the user can tap anywhere on the screen to expose that area properly for taking a picture or recording video. Other examples include face detection and HDR mode – all features not found in most Android phones today.

Final Word

Apple has been tight-lipped about the reasoning behind the triple camera system on the iPhone 11 Pro and Pro Max, but there are a few likely explanations. The three cameras could allow for better zooming capabilities, improved low-light performance, or a wider field of view. With more and more people shooting photos and videos with their phones, Apple is likely looking to set itself apart from the competition by offering features that its competitors can’t match. What do you think? Why do you think Apple decided to include 3 cameras on its latest iPhones? Let us know in the comments!


1. Do you think that the iPhone’s three cameras are necessary?

The iPhone’s three cameras are necessary because they provide a versatile camera system to handle a wide range of photography needs. The primary camera is great for everyday shots, the zoom lens is perfect for capturing distant objects, and the TrueDepth camera is ideal for taking selfies and portraits. With these three cameras, the iPhone offers something for everyone.

2. What do you think the third camera is used for?

There are a lot of theories out there about the third camera on the new iPhone models. Some people think it’s for 3D scanning; others think it might be used for Augmented Reality. But at this point, no one knows for sure what its purpose is. I guess we’ll just have to wait and see!

3. Do you think Apple will add a fourth camera to future models?

There’s no predicting the future, but it’s certainly possible that Apple will add a fourth camera to future models. Camera technology is constantly evolving and improving, so a fourth camera would likely offer even better photo and video quality than the current three-camera system. Plus, adding a fourth camera could give Apple another competitive edge against other smartphone manufacturers. We’ll just have to wait and see!

4. What do you think of the trend of phones with multiple cameras?

There are a few different reasons to have multiple cameras on the phone. The first is to offer different perspectives for the user. For example, having a wide-angle and telephoto lens can give you more options for taking photos and videos. Another reason is to improve photo quality. Having multiple cameras with different focal lengths can help you capture more detail in your photos. Finally, multiple cameras can be used for portrait mode or 3D scanning depth effects.

5. Do you think that other phone companies will follow Apple’s lead and start adding multiple cameras to their phones?

Yes, other phone companies will likely start advertising and incorporating health tracking features into their phones. Apple has been very successful with its Health App, and other phone companies will likely try to replicate this success by incorporating similar features into their products.

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