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Canon EOS R3 vs EOS R6 Comparison

Storage & Battery

Canon EOS R3

Canon EOS r3 Camera image

Canon EOS R6

Canon EOS r6
Canon EOS R3
Canon EOS R6
Refers to the year this camera was officially made available for sale.
Announcement Date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
September 14, 2021
August 27, 2020
Camera Type
Camera Size
Camera Weight

The Canon EOS R3 takes the lead with a score of 84/100, while the Canon EOS R6 trails close behind with a score of 80/100. Both cameras share similarities, being mirrorless and announced within a year of each other. The R3, however, boasts a higher launch price of $5999 compared to the R6’s $2499.

The R3’s advantages include a larger size (150 x 143 x 87mm) and heavier weight (1015g / 2.24lbs), which may contribute to its sturdiness and durability. On the other hand, the R6’s smaller size (138 x 98 x 88mm) and lighter weight (680g / 1.50lbs) make it a more portable and convenient option for photographers on the go.

Despite the R6’s lower score, its more affordable price and compact size make it an attractive option for those prioritizing budget and portability. However, the R3’s higher score and heftier build indicate it may be the better choice for professionals seeking top-notch performance and durability.

Canon EOS R3 vs EOS R6 Overview and Optics

The Canon EOS R3 outperforms the Canon EOS R6 in optics, scoring 84/100 compared to the R6’s 79/100. Both cameras share several specifications, including a CMOS sensor, Digic X processor, full-frame sensor size, Canon RF lens mount, and image stabilization. Despite these similarities, there are notable differences that set the R3 ahead of the R6.

The R3 has a higher megapixel count at 24, compared to the R6’s 20.1. This difference allows the R3 to capture more detail and produce higher resolution images. Additionally, the R3 boasts a faster shooting speed of 30 frames per second (fps), while the R6 only reaches 20 fps. This faster shooting speed enables the R3 to capture fast-moving subjects more effectively, making it a better choice for action and sports photography.

Moreover, the R3 has a higher DXOMARK score for its sensor, at 96 compared to the R6’s 90. This higher score points to the R3 having a better overall image quality, dynamic range, and low-light performance.

However, the R6 is not without its advantages. Its lower score does not necessarily mean it is a poor camera, but rather it is simply not as strong as the R3 in certain aspects. The R6 still offers excellent image quality and performance, making it a suitable choice for various photography needs.

Considering the aforementioned points, the Canon EOS R3 is the better camera in terms of optics, with its higher megapixel count, faster shooting speed, and superior sensor performance. While the Canon EOS R6 is an excellent camera, it falls short in comparison to the R3 in these areas.

The higher the number of megapixels, the more detail the cameras sensor can capture.
24 MP
20.1 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
6012 x 4016 px
5472 x 3648 px
Sensor Type
The camera sensor captures light and records the image. Sensors vary in physical size, the number of pixels, and quality.
Sensor Size
The sensor size contributes to the overall quality as well as the dynamic and tonal range a camera can capture. As a rule of thumb, the more surface there is to read the light, the more information it will capture.
24 x 36 mm
23.9 x 35.9 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Full Frame
Full Frame
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
30 fps
20 fps
Lens Mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Canon RF
Canon RF
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
Digic X
Digic X
Aspect Ratio
The aspect ratio refers to the proportional difference between width and height. The most popular aspect ratios are 3:2 and 4:3.
Minimum ISO (Native)
Refers to the lowest native (or 'base') ISO setting. Lower ISO are less sensitive to light but make a cleaner image.
Maximum ISO (Native)
Refers to the highest native (or 'base') ISO setting. Higher ISO is necessary for low-light situations or night photography, but higher ISOs often introduce grain or noise.
Minimum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Maximum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Minimum Shutter Speed
The minimum shutter speed will tell you the longest exposure your camera can take without using an external accessory.
30 s
30 s
Maximum Shutter Speed
The maximum shutter speed tells you the length inside 1 second the camera will capture. These can sometimes be extended with accessories such as extra external batteries.
1/ 8000 s
1/ 8000 s
Autofocus Points
Autofocus points show where the camera is focusing graphically as squares or brackets in Live View or on an electronic viewfinder. These points are also used for light meter readings.
In-body Stabilization
In-body Stabilization means the camera has a certain technology embedded that counteracts camera shake.
Viewfinder Type
The viewfinder type is either electronic or optical. Electronic viewfinders will have a small screen in the viewfinder. Optical viewfinders will use prisms and mirrors to look through the lens.
Viewfinder Resolution
5,760,000 dots
3,690,000 dots

Canon EOS R3 vs EOS R6 Video Performance

The Canon EOS R3 outperforms the Canon EOS R6 in video capabilities, earning a video score of 96/100 compared to the R6’s 91/100. Both cameras have several shared features, including a maximum video frame rate of 120fps and built-in time-lapse functionality. Despite these similarities, the R3 surpasses the R6 in specific video specifications.

The R3’s superior video quality is evident in its maximum video resolution of 6K and dimensions of 6000 x 3164, which are higher than the R6’s 4K resolution and 3840 x 2160 dimensions. This difference means the R3 can capture more detailed and sharper footage, making it the better choice for professional videographers and content creators.

While the R6 falls short in comparison to the R3, it still boasts impressive video capabilities. With a 4K resolution and 120fps frame rate, the R6 is more than suitable for high-quality video production and can meet the needs of many users. Additionally, the R6’s lower price point may appeal to those who require solid video performance but are not seeking the absolute best in resolution and detail.

Considering the specifications and performance of both cameras, the Canon EOS R3 is the clear winner in terms of video capabilities. Its 6K resolution and larger dimensions offer a significant advantage over the R6, making it the ideal choice for professional videographers. However, the Canon EOS R6 remains a strong contender for those who require a high-quality camera with 4K resolution at a more affordable price.

Indicates if this camera is capable of recording video.
Max Video Resolution
The best resolution this camera can capture video in. Modern cameras can capture up to 8K video.
Max Video Dimensions
Video resolution measured by the greatest number of pixels possible in each frame, width by height. A higher resolution means more detail or clarity in your video.
6000 x 3164 px
3840 x 2160 px
Max Video Frame Rate
How many frames per second your video will capture. Most cameras have options for multiple frame rates, depending on the resolution you shoot in. For a general video, 24p or 30p is the standard, but more serious filmmakers may need a higher frame rate for creative effect.
120 p
120 p
Time-Lapse Built In
A built in time-lapse mode will allow continuous shooting throughout a prolonged period of time to be compressed into a sped up video.
Video File Format
Different cameras can record in various video file formats. The File format you record in can impact how you edit and use the files.

Canon EOS R3 vs EOS R6 Features and Benefits

The Canon EOS R3 wins the feature comparison with a score of 87/100, while the Canon EOS R6 scores 85/100. Both cameras share several specifications, such as touchscreen capability, flip screen, WIFI, and Bluetooth connectivity. However, there are differences that make the EOS R3 a better choice in terms of features.

The EOS R3 has a larger screen size of 3.2 inches compared to the EOS R6’s 3 inches. This difference allows for easier image framing and review on the EOS R3. Additionally, the EOS R3’s screen resolution is significantly higher at 4,150,000 dots, compared to the EOS R6’s 1,620,000 dots. This higher resolution provides a clearer and more detailed display on the EOS R3.

Another advantage of the EOS R3 is its GPS feature, which the EOS R6 lacks. This enables photographers to geotag their images, making it easier to track and organize photos based on location.

On the other hand, the EOS R6 may still be a suitable choice for some users. Its lower feature score does not necessarily mean it is a bad camera. It retains many of the same features as the EOS R3, such as the touchscreen, flip screen, WIFI, and Bluetooth connectivity. For users who do not require a larger screen, higher screen resolution, or GPS functionality, the EOS R6 can be a more cost-effective option.

In comparing the Canon EOS R3 and EOS R6, the EOS R3 proves to be the better camera in terms of features, with a larger screen, higher screen resolution, and GPS capability. However, the EOS R6 remains a viable option for those who do not need these additional features and are seeking a more budget-friendly camera.

Built-in Flash
A built-in flash will often be positioned right above the lens. This will automatically pop up when you activate it.
External Flash
External flashes are often connected through a hot shoe at the top of a camera, or a cable at the side of the camera.
GPS features in a camera will include location metadata to each of your photographs.
Weather Sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Screen Type
Touch Screen
Touchscreen allows you to change camera settings and access menus with a swipe of your finger, instead of using buttons.
Screen Size
Screen Resolution
Screen dots indicate the resolution of the LCD screen by including each sub pixel.
4,150,000 dots
1,620,000 dots
Flip Screen
A flip screen (or articulating screen) is a second screen which can flip out from the side or top of the camera. This rotating screen allows you more freedom to take photos at different angles.
Live View
Live View feature allows you to see a continuous live video of what is being seen through your lens.
Bluetooth capabilities allow you wireless control of your camera with other external devices.

Canon EOS R3 vs EOS R6 Storage and Battery

The Canon EOS R3 outperforms the Canon EOS R6 in storage and battery with a score of 81/100, a significant 13-point lead over the R6’s score of 68/100. Both cameras share some common specifications, including two memory card slots and USB charging capabilities. However, the R3 has a notable advantage in battery life and memory card compatibility.

The EOS R3’s battery life lasts for an impressive 760 shots, while the R6 only manages 360 shots. Additionally, the R3 accepts both SD/SDHC/SDXC and CFexpress Type B memory cards, offering greater flexibility compared to the R6, which only supports SD/SDHC/SDXC cards.

The EOS R6 does not have any specific advantages in storage and battery over the R3. The R3’s longer battery life and broader memory card compatibility make it the clear winner in this category. The R6’s lower score reflects its limited capabilities in these aspects compared to the R3.

Storage and Battery
Storage and Battery
Memory Card
SD / SDHC / SDXC, CFexpress Type B (UHS-II compatible)
SD / SDHC / SDXC (UHS-II compatible)
Dual Memory Card Slots
Battery Type
Battery Life
Approximately how long this cameras battery will last measured by how many photographs you will be able to take.
760 shots
360 shots
USB Charging
Sensor scores tested by DXOMARK
Overall Score
DXOMARK overall sensor score.
Portrait (Color Depth)
As described by DXOMARK 'The Portrait score in our camera sensor reviews defines color depth performance and its unit is a number of bits. A color depth of 22 bits is excellent; differences below 1 bit are barely noticeable.'
25 bits
24.2 bits
Landscape (Dynamic Range)
As described by DXOMARK 'The Landscape score in our camera sensor tests defines the maximum dynamic range of the camera sensor and its unit is an exposure value (EV). A value of 12 EV is excellent with differences below 0.5 EV usually not noticeable.'
14.7 EVs
14.3 EVs
Sports (Low-Light ISO)
Described by DXOMARK as 'The maximal value of ISO sensitivity needed to reach a given value of Signal-to-Noise Ratio (SNR). The greater the value, the better'

Canon EOS R3 vs EOS R6 Alternatives

User Scores
B&H photo video
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