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Canon EOS R100 Mirrorless Camera RF-S18- vs Sony a5100 16-

Updated August 2026 — Canon EOS R100 Mirrorless Camera RF-S18- leads on value and weight.

The Canon EOS R100 offers superior image quality, video capabilities, and value for money compared to the Sony a5100. It is the better choice for most users.

Why Canon EOS R100 Mirrorless Camera RF-S18- is better

Video Quality

Canon supports 4K video recording while Sony does not.

Price

Canon is priced at $579, making it more affordable.

Autofocus

Canon has more autofocus points, enhancing tracking performance.

Why Sony a5100 16- is better

Connectivity

Sony offers Wi-Fi and NFC for easy sharing.

Compactness

Sony is slightly smaller in dimensions.

Brand Reputation

Sony has a long-standing reputation in the camera market.

Overall score

Canon EOS R100 Mirrorless Camera RF-S18-
85
Sony a5100 16-
75

Specifications

SpecCanon EOS R100 Mirrorless Camera RF-S18-Sony a5100 16-
Sensor24.1MP APS-C24MP APS-C
Video4K at 24fpsFull HD at 60fps
Autofocus143 AF points179 AF points
Price$579$777.48
Sales Rank531641658

Dimension comparison

Canon EOS R100 Mirrorless Camera RF-S18-Sony a5100 16-

Design and Build Quality

The Canon EOS R100 is designed to be the smallest and lightest camera in the EOS R series, making it ideal for photographers on the go. Its compact and lightweight design enhances mobility, which is a considerable advantage for travel and street photography. In contrast, the Sony a5100, while also portable, has a slightly bulkier build that may not be as easy to carry for extended periods. Both cameras boast a modern aesthetic, but the Canon's ergonomic design may appeal more to users prioritizing ease of use and portability.

Image Quality

When it comes to image quality, the Canon EOS R100 features a 24.1 megapixel APS-C sensor, which delivers superb clarity and detail. This high resolution is complemented by its ability to capture images with natural bokeh. The Sony a5100 also offers a 24MP APS-C sensor, ensuring high-resolution images. However, the Canon's advanced DIGIC 8 image processor stands out, enabling it to produce excellent images even in challenging lighting conditions. This processing power also enhances its video capabilities, making it a versatile choice for both stills and videos.

Autofocus Performance

Autofocus performance is a critical aspect for any photographer, and here, the Canon EOS R100 excels with its Dual Pixel CMOS AF. It features up to 143 autofocus zones, with advanced face and eye detection that is highly effective for both stills and video. The Sony a5100 has an ultra-fast autofocus system with 179 AF points, which also performs admirably. However, the greater number of AF points in the Canon provides it with a slight edge, especially for tracking moving subjects, making it potentially more reliable for action shots and videos.

Video Capabilities

In terms of video capabilities, the Canon EOS R100 offers 4K video recording at up to 24 frames per second, along with Full HD recording at 60 fps. This makes it an excellent choice for videographers looking to produce high-quality content. The Sony a5100, while capable of recording Full HD video at 60 fps as well, does not support 4K, which is a significant limitation for those wanting to capture high-definition video. Therefore, the Canon clearly stands out in this category for users prioritizing video quality.

Connectivity Options

Both cameras provide convenient connectivity features, though they differ in their approaches. The Sony a5100 includes Wi-Fi and NFC for instant sharing via smartphone, making it easy to upload photos on the go. Meanwhile, the Canon EOS R100 emphasizes its RF mount system, which allows for a wide range of interchangeable lenses, thus offering greater versatility in photography. While both cameras are user-friendly, the choice between them could hinge on how important quick sharing is relative to lens flexibility.

Price Comparison

There is a notable price difference between the two cameras. The Canon EOS R100 is currently priced at $579.00, making it about 25% cheaper than the Sony a5100, which retails for $777.48. This price point makes the Canon a more accessible option for those looking to enter the mirrorless camera market without a significant financial commitment. The lower price of the Canon does not compromise on features, making it an attractive option for budget-conscious buyers.

Sales Performance

In terms of market performance, the Canon EOS R100 holds a sales rank of 5316, which indicates a strong presence in the market for beginner and intermediate photographers. The Sony a5100, with a sales rank of 41658, suggests it may not be as popular despite its established brand reputation. This difference could reflect user preference trends, with the Canon attracting more attention for its combination of portability, functionality, and price.

Which should you buy?

Choosing between the Canon EOS R100 and the Sony a5100 ultimately depends on your specific needs and priorities. If you seek a compact, lightweight camera that excels in both image and video quality at a lower price point, the Canon EOS R100 is the clear winner. Its advanced autofocus system and 4K video capabilities make it a compelling option for aspiring photographers and videographers alike. However, if instant connectivity and a slightly different feature set appeal to you, the Sony a5100 remains a solid choice. Overall, the Canon EOS R100 provides better value and versatility, making it the recommended option for most users.