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Nikon Z5 II | Full-Frame mirrorless Stills/Video vs Sony a5100 16-

Updated August 2026 — Nikon Z5 II | Full-Frame mirrorless Stills/Video wins on video and low-light, Sony a5100 16- wins on price.

The Nikon Z5 II offers superior image quality and advanced features, making it the better choice for serious photographers, while the Sony a5100 is a budget-friendly option for beginners.

Why Nikon Z5 II | Full-Frame mirrorless Stills/Video is better

Image Quality

Nikon Z5 II has a full-frame sensor.

Video Features

Nikon Z5 II records in 4K UHD.

Autofocus

Nikon Z5 II has 273 focus points.

Why Sony a5100 16- is better

Price

Sony a5100 is significantly cheaper.

Connectivity

Sony a5100 has Wi-Fi and NFC.

Compactness

Sony a5100 is more portable.

Overall score

Nikon Z5 II | Full-Frame mirrorless Stills/Video
88
Sony a5100 16-
72

Specifications

SpecNikon Z5 II | Full-Frame mirrorless Stills/VideoSony a5100 16-
Sensor TypeFull-FrameAPS-C
Max ISO20480025600
Video Resolution4K UHDFull HD
AF Points273179
Screen TypeVari-AngleFlip-Up

Dimension comparison

Nikon Z5 II | Full-Frame mirrorless Stills/VideoSony a5100 16-

Overview of the Nikon Z5 II and Sony a5100

The Nikon Z5 II is priced at $1,596.95, while the Sony a5100 comes in at $777.48, making the Sony model about 51% cheaper. Despite the significant price difference, both cameras offer unique features catering to different types of photographers. The Nikon Z5 II targets professional and serious enthusiasts with its full-frame capabilities and advanced video features, whereas the Sony a5100 serves as a more compact and beginner-friendly option with impressive autofocus and decent video quality.

Image Quality

When it comes to image quality, the Nikon Z5 II boasts a 24.5MP full-frame CMOS sensor, which provides exceptional detail and vibrant colors in every shot. This model is designed for photographers who prioritize high-resolution images and superior low-light performance, with an ISO range that expands from 100 to 204,800. In comparison, the Sony a5100 features a 24MP APS-C sensor, which, while still capable of excellent image quality, does not quite match the full-frame performance of the Nikon. Thus, for those looking for the best in clarity and detail, the Nikon Z5 II holds a clear advantage.

Autofocus Performance

The autofocus capabilities of the Nikon Z5 II are superior, featuring an advanced hybrid phase-detection and contrast AF system with 273 focus points. This ensures precise and rapid subject acquisition, making it easier to capture fleeting moments. On the other hand, the Sony a5100 utilizes a fast autofocus system with 179 AF points, which is quite effective, especially for a camera in its price range. However, the added focus points in the Nikon model provide greater versatility and accuracy, particularly in challenging shooting conditions.

Video Recording Features

For videographers, the Nikon Z5 II excels with its ability to record 4K UHD video at various frame rates, offering flexibility and high-quality output for professional projects. The Nikon's features include slow-motion capabilities at 120p and superior autofocus for video, making it a great choice for cinematic content creation. Conversely, the Sony a5100 records Full HD 1080p video, which is adequate for casual use but lacks the advanced video features of the Nikon. Thus, for serious video work, the Nikon Z5 II is the clear winner.

Design and Usability

The design of the Nikon Z5 II is both intuitive and functional, featuring a 3.2-inch vari-angle touchscreen LCD and a high-resolution OLED electronic viewfinder. This setup enhances the user experience, allowing for easy navigation of settings and comfortable composition. In contrast, the Sony a5100 includes a 3-inch flip-up LCD, which is great for selfies and vlogging but less versatile than the Nikon's vari-angle design. While both cameras are user-friendly, the Nikon's design caters better to diverse shooting scenarios.

Low-Light Performance

In low-light conditions, the Nikon Z5 II shines with its extended ISO range of 100-64000, expandable to 204800, ensuring clear and noise-free images. This capability is crucial for photographers who often shoot in dim environments. The Sony a5100, while competent, has a more limited ISO range and may not perform as well in challenging lighting situations. Therefore, for those who frequently engage in low-light photography, the Nikon Z5 II is a more reliable option.

Connectivity and Sharing

The Sony a5100 offers convenient connectivity options, including Wi-Fi and NFC, which facilitate instant sharing of photos and videos to smartphones. This feature is particularly appealing to casual users and social media enthusiasts who want to quickly upload their content. The Nikon Z5 II does not explicitly mention similar connectivity features, focusing instead on its imaging capabilities. While both cameras can serve different audiences, the ease of sharing with the Sony a5100 gives it an edge for users prioritizing connectivity.

Price and Value

With the Nikon Z5 II retailing at $1,596.95 and the Sony a5100 at $777.48, the price difference is substantial—about $819.47. This makes the Sony a5100 an appealing option for those on a budget or just starting in photography. However, the Nikon Z5 II offers advanced features that justify its higher price, especially for serious creators who will benefit from its superior image quality, autofocus capabilities, and video performance. Ultimately, the value proposition depends on the user's specific needs and level of expertise.

Which should you buy?

Choosing between the Nikon Z5 II and the Sony a5100 ultimately depends on your photographic needs and budget. The Nikon Z5 II is ideal for professionals and serious enthusiasts seeking exceptional image quality, advanced autofocus, and superior video recording capabilities. Conversely, the Sony a5100 is an excellent choice for beginners or casual users who value connectivity and a lower price point. If you are serious about photography and willing to invest, the Nikon Z5 II will provide significant benefits. However, if you are just getting started or need a compact, budget-friendly option, the Sony a5100 is a solid choice.