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Canon EOS M3 vs PowerShot G7 X Mark III Comparison

Storage & Battery

Canon EOS M3

Canon EOS M3 camera

Canon PowerShot G7 X Mark III

Canon Powershot G7 X Mark III product image
Canon EOS M3
Canon PowerShot G7 X Mark III
PowerShot G7 X Mark III
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.
February 06, 2015
July 09, 2019
Camera Type
Camera Size
Camera Weight

The Canon PowerShot G7 X Mark III wins this comparison with a score of 59/100, while the Canon EOS M3 scores 56/100. Both cameras share similarities, such as their announcement in the 2010s and their similar sizes. The PowerShot G7 X Mark III is better due to its more recent release in 2019, which makes it a more advanced camera. It also has a lower launch price of $749 and is lighter, weighing only 304g.

On the other hand, the EOS M3, released in 2015, has a higher launch price of $870 and weighs 366g. Despite these disadvantages, it remains a decent camera option for those preferring a mirrorless camera type. When considering each camera’s specifications, the PowerShot G7 X Mark III stands out as the better choice due to its advanced features, lower price, and lighter weight.

Canon EOS M3 vs PowerShot G7 X Mark III Overview and Optics

The Canon EOS M3 takes the lead in optics, scoring 60/100, while the Canon PowerShot G7 X Mark III trails slightly behind with a score of 57/100. Both cameras share some specifications, including a CMOS sensor and a similar shooting speed (4.2 for the EOS M3 and 30 for the G7 X Mark III).

The EOS M3 outshines the G7 X Mark III with its higher megapixel count (24.2 vs. 20), larger sensor size (APS-C vs. 1″), and better DXOMARK score for the sensor (72 vs. 58). Additionally, the EOS M3 features a Canon EF-M lens mount, providing users with the flexibility to change lenses as needed.

On the other hand, the PowerShot G7 X Mark III has its own advantages. It boasts a more advanced processor (Digic 8 vs. Digic 6) and offers image stabilization, a feature lacking in the EOS M3. However, the G7 X Mark III uses a fixed lens mount, limiting users to the built-in lens.

Considering these factors, the Canon EOS M3 emerges as the superior option in terms of optics, due to its higher megapixel count, better sensor performance, and lens flexibility. The Canon PowerShot G7 X Mark III, while offering a better processor and image stabilization, falls short in other key aspects and is limited by its fixed lens mount.

Therefore, for users prioritizing optics, the Canon EOS M3 is the better choice.

The higher the number of megapixels, the more detail the cameras sensor can capture.
24.2 MP
20 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
6000 x 4000 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.
14.9 x 22.3 mm
13.2 x 8.8 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
4.2 fps
30 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 EF-M
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
Digic 6
Digic 8
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/ 4000 s
1/ 2000 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.

Canon EOS M3 vs PowerShot G7 X Mark III Video Performance

The Canon PowerShot G7 X Mark III is the clear winner in terms of video capabilities, scoring 91/100, while the Canon EOS M3 scores a 43/100. Both cameras share some common video specifications, such as offering Full HD video resolution and dimensions of 1920 x 1080. However, the PowerShot G7 X Mark III outshines the EOS M3 in several aspects.

The PowerShot G7 X Mark III boasts a maximum video resolution of 4K, providing users with crisp and detailed footage. In contrast, the EOS M3 only offers Full HD video resolution. Additionally, the G7 X Mark III has a higher maximum video frame rate of 120fps, allowing for smooth slow-motion capture. The EOS M3 falls short with a maximum frame rate of 30fps.

Another advantage of the PowerShot G7 X Mark III is its built-in time-lapse functionality, enabling users to create stunning time-lapse videos without the need for additional software or equipment. Unfortunately, the EOS M3 does not offer this feature.

While the EOS M3 may not have any video advantages over the G7 X Mark III, it still provides decent video quality for casual users. However, for those who prioritize video capabilities, the PowerShot G7 X Mark III is the superior choice.

Considering the significant difference in video scores and the G7 X Mark III’s superior specifications, it is evident that the PowerShot G7 X Mark III is the better camera for videography. Users looking for advanced video features and higher quality footage should opt for the Canon PowerShot G7 X Mark III, while the Canon EOS M3 remains a suitable option for casual video recording.

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.
Full HD
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.
1920 x 1080 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.
30 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 M3 vs PowerShot G7 X Mark III Features and Benefits

The Canon PowerShot G7 X Mark III outperforms the Canon EOS M3 with a feature score of 70/100 compared to the latter’s 57/100. Both cameras share several specifications, including a 3-inch screen size, 1040000-dot screen resolution, touchscreen capability, flip screen, GPS absence, and WIFI connectivity.

The G7 X Mark III’s superiority stems from its Bluetooth integration, which the EOS M3 lacks. This feature allows for seamless and convenient connectivity with other devices, enhancing the user experience and providing additional options for transferring and sharing files.

Despite its lower feature score, the EOS M3 does not have any specific advantages over the G7 X Mark III in terms of features. Both cameras have identical screen specifications, connectivity options, and lack of GPS. As a result, there is no clear area where the EOS M3 surpasses the G7 X Mark III.

Considering the specifications and feature scores, the Canon PowerShot G7 X Mark III is the better option due to its additional Bluetooth connectivity. The Canon EOS M3, while not offering extra benefits, still provides a decent set of features that align with the G7 X Mark III in most aspects. However, the lack of Bluetooth makes it a less desirable choice when compared to its counterpart.

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.
1,040,000 dots
1,040,000 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 M3 vs PowerShot G7 X Mark III Storage and Battery

The Canon PowerShot G7 X Mark III outperforms the Canon EOS M3 in storage and battery with a score of 27/100 against the EOS M3’s 16/100. Both cameras have one memory card slot and accept SD, SDHC, and SDXC cards. However, the G7 X Mark III is compatible with UHS-I cards, providing faster read and write speeds.

The EOS M3 has a slightly longer battery life, offering 250 shots compared to the G7 X Mark III’s 235 shots. Despite this advantage, the G7 X Mark III is superior due to its USB charging capability. This feature allows for convenient charging on-the-go, without needing a separate charger.

While the EOS M3 offers a marginally better battery life, the G7 X Mark III’s compatibility with UHS-I cards and USB charging functionality make it a more practical choice for storage and battery needs.

Storage and Battery
Storage and Battery
Memory Card
SD / SDHC / SDXC (UHS-I 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.
250 shots
235 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.'
22.8 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.'
11.8 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 M3 vs PowerShot G7 X Mark III – Our Verdict

User Scores
B&H photo video
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