Canon EOS R100 Mirrorless Camera with RF-S18- vs Sony a5100 16-
Updated August 2026 — Canon EOS R100 Mirrorless Camera with RF-S18- wins on video and price, Sony a5100 16- wins on design.
The Canon EOS R100 offers better value with 4K video and advanced autofocus, while the Sony a5100 excels in portability and quick sharing features.
Why Canon EOS R100 Mirrorless Camera with RF-S18- is better
Price
Canon EOS R100 is $579.00, cheaper than Sony a5100 at $777.48.
Video
Canon supports 4K video recording, while Sony only offers Full HD.
Autofocus
Canon features advanced Dual Pixel AF with 143 zones.
Why Sony a5100 16- is better
Portability
Sony a5100 has a compact design with a flip-up LCD.
Sharing
Sony offers instant sharing via Wi-Fi and NFC.
Sales Rank
Sony a5100 has a higher sales rank at 41,658.
Overall score
Specifications
| Spec | Canon EOS R100 Mirrorless Camera with RF-S18- | Sony a5100 16- |
|---|---|---|
| Sensor | 24.1MP APS-C | 24MP APS-C |
| Video Resolution | 4K | 1080p |
| Autofocus Points | 143 | 179 |
| Weight | Lightweight | Compact |
| Battery Life | Good | Average |
Dimension comparison
Price Comparison
The Canon EOS R100 is priced at $579.00, making it about 17% cheaper than the Sony a5100, which retails for $777.48. This price difference can be significant for budget-conscious consumers seeking a reliable mirrorless camera without sacrificing quality. Given that both cameras offer comparable features, the lower price of the Canon model may attract those who want to enter the world of mirrorless photography without a hefty investment.
Image Quality
The Canon EOS R100 boasts a 24.1 megapixel CMOS (APS-C) sensor, which delivers superb image clarity and detail. Similarly, the Sony a5100 also features a 24MP APS-C sensor, ensuring high-resolution images. Both cameras excel at providing stunning visuals, but the Canon's advanced image processing capabilities, facilitated by its DIGIC 8 processor, may offer an edge in terms of image quality and performance, especially in low-light conditions.
Autofocus Performance
When it comes to autofocus, the Canon EOS R100 features a Dual Pixel CMOS AF system with 143 autofocus zones, and it includes human face and eye detection. This makes it highly effective for capturing moving subjects and ensuring sharp focus. The Sony a5100, while equipped with an ultra-fast autofocus system utilizing 179 AF points, operates at a rate of 6 frames per second. Although both cameras excel in autofocus, the Canon's advanced features may provide better performance in various shooting scenarios.
Video Capabilities
The Canon EOS R100 offers 4K video recording at up to 24 frames per second, making it a strong contender for videographers. In contrast, the Sony a5100 can record Full HD 1080p video at 60 frames per second. While the Sony provides excellent video quality, the Canon's 4K capability positions it better for those focused on high-definition video content, especially as 4K becomes increasingly standard in video production.
Design and Portability
The Canon EOS R100 is compact and lightweight, described as the smallest and lightest camera in the EOS R series, which enhances mobility for on-the-go photography. The Sony a5100 also emphasizes portability, featuring a sleek design and a 3-inch flip-up LCD screen for easy selfies and vlogging. Both cameras cater well to users looking for lightweight options, but the Canon’s design may appeal more to those who prioritize minimal bulk in their gear.
Additional Features
The Canon EOS R100 comes bundled with a camera shoulder bag and a 64GB memory card, adding extra value to your purchase. On the other hand, the Sony a5100 features instant sharing capabilities via Wi-Fi and NFC, which can be very appealing for users who wish to quickly transfer images to their smartphones. While both cameras offer unique additional features, the Canon's bundled accessories provide added convenience for photographers starting out.
Sales Rank
In terms of sales rank, the Canon EOS R100 holds a bestseller rank of 31,530, while the Sony a5100 ranks at 41,658. Although both products are popular in the market, the higher sales rank of the Canon model may indicate stronger consumer preference, potentially due to its price point and feature set. This could be a crucial factor for buyers considering long-term value and market trends.
Which should you buy?
Ultimately, the choice between the Canon EOS R100 and the Sony a5100 hinges on personal preferences and specific needs. The Canon EOS R100 stands out with its lower price, 4K video capabilities, and advanced autofocus system, making it an excellent option for those who want a versatile mirrorless camera at an attractive price. Conversely, the Sony a5100 may appeal to users who prioritize compact design and quick sharing features. Consider what features matter most to you and how much you are willing to invest to make the best decision for your photography journey.

