Panasonic Lumix S1 Vs Sony a7III

If you’re in the market for a new camera, you’ve probably come across the Panasonic Lumix S1 Vs Sony a7III. Both of these cameras are popular among photographers and videographers for their high-quality features and capabilities. However, which one should you choose? Today we’ll compare both cameras to help you make an informed decision.

In this comparison, we will talk about the following:

  • What are Panasonic Lumix S1 and Sony a7III?
  • How is the Design of Panasonic Lumix S1 and Sony a7III?
  • How is the Sensor in Panasonic Lumix S1 and Sony a7III?
  • How is the Autofocus in Panasonic Lumix S1 and Sony a7III?
  • How is the Video Performance of Panasonic Lumix S1 and Sony a7III?
  • How is the Battery Life of Panasonic Lumix S1 and Sony a7III?
  • Which Camera to Buy?
Panasonic Lumix S1Sony A7III
Product Dimensions 9.05 x 9.35 x 6.4 inches
5 x 3.88 x 3 inches
Shipping Weight 6.4 Pounds
1.44 Pounds
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About Panasonic Lumix S1 and Sony a7III

The Panasonic Lumix S1 is a full-frame mirrorless camera that was introduced in 2019. It comes with a 24.2-megapixel full-frame sensor and is specifically designed for both still photography and video. In terms of features, the Lumix S1 boasts several advanced functions such as 5-axis in-body image stabilization, dual memory card slots (one XQD and one SD), a high-resolution electronic viewfinder, and a fast and precise autofocus system. With the ability to record 4K video at up to 60 frames per second, the Lumix S1 is a highly versatile camera that is perfect for capturing both still images and videos. Read also: Panasonic Lumix S5 Vs S1.

Released in 2018, the Sony a7III is a full-frame mirrorless camera that is tailored for both still photography and video. With its 24.2-megapixel back-illuminated CMOS sensor, the camera delivers excellent image quality, and its advanced features such as 5-axis in-body image stabilization, fast and precise autofocus system with 693 phase-detection autofocus points, high-resolution electronic viewfinder, and dual SD card slots, make it a highly versatile option. The camera is also capable of capturing 4K video at up to 30 frames per second or 1080p video at up to 120 frames per second, which is ideal for content creators.

Design and Build Quality

The Panasonic Lumix S1 and the Sony a7III both have a sturdy build quality, with a weather-sealed body that can withstand harsh conditions. However, the Lumix S1 is slightly larger and heavier than the a7III, which can be a consideration for some photographers who prioritize portability.The Lumix S1 has a comfortable grip with a textured surface, making it easier to hold and use for extended periods. The Sony a7III, on the other hand, has a slimmer grip that may feel less comfortable for those with larger hands.

Sensor and Image Quality

Both cameras feature a full-frame sensor, which provides excellent image quality with better low-light performance and dynamic range. The Lumix S1 has a 24.2-megapixel sensor and Sony a7III has the same 24.2-megapixel sensor.

When it comes to image quality, the Lumix S1 has a slightly better dynamic range, making it better suited for landscape photography or situations where the lighting conditions are challenging. The Sony a7III, on the other hand, has better low-light performance, making it ideal for low-light photography or shooting in dimly lit environments. However, the actual difference is very small to make up the decision.

Autofocus System

The autofocus system is an essential feature to consider when choosing a camera, especially for those who shoot fast-moving subjects or action shots. The Lumix S1 features a 225-point contrast-detection autofocus system, while the Sony a7III has a 693-point hybrid contrast and phase-detection autofocus system.

In general, phase-detection autofocus is faster and more accurate, making the Sony a7III better suited for fast-moving subjects or action shots. However, the Lumix S1’s contrast-detection autofocus system is more reliable in low-light conditions, making it a better option for low-light photography. In real life, the actual performance is equally reliable with Sony slightly being more reliable.

Video Capabilities

Both cameras offer excellent video capabilities, with the ability to shoot 4K video at up to 60fps. However, the Lumix S1 has a slight edge over the Sony a7III in terms of video features and capabilities. The Lumix S1 offers internal 10-bit 4:2:2 recording, which provides better color accuracy and flexibility in post-production. It also features V-Log, a flat color profile that provides more dynamic range and flexibility in post-production. Read also: Panasonic Lumix GH6 Vs GH5.

In addition, the Lumix S1 has an articulating screen with better resolution than Sony a7III. The Sony a7III, on the other hand, offers internal 8-bit 4:2:0 recording, which provides less color accuracy and flexibility in post-production. It also lacks the flat color profile, making it less suited for professional videography.

Battery Life

Battery life is an essential consideration for photographers and videographers who shoot for extended periods. The Lumix S1 has a slightly larger battery than the Sony a7III, which provides better battery life.

The Lumix S1 can shoot up to approximately 380 shots on a single charge, while the Sony a7III can shoot up to 710 shots on a single charge. However, the battery life can vary depending on various factors, such as the shooting mode, the use of the viewfinder or LCD screen, and the temperature.

- Full frame sensor – 24. 2-Megapixel full-frame (35. 6mm x 23. 8mm) MOS sensor that provides a wide dynamic Range and excellent performance at high sensitivity (is 51200 Max sensitivity)
- Lumix s camera lens – easy-to-use 24-105mm standard focal macro zoom F4 l-mount for Lumix s Series full-frame l-mount digital Mirrorless cameras
- 4K HDR VIDEO - 4K 60p/50p, 4K 24/30P unlimited recording, 4K60P 29: 59 min limited recording. HDR Mode and Hybrid Log Gamma (HLG). V-Log with Internal 4: 2: 2 10-bit 4k30/24p (4K60p output only) available via optional software upgrade key.
- 96MP high resolution mode – a sensor shift technology suitable for taking very high-resolution Landscapes and fine art photos via tripod with toggle able motion correction capabilities
- Advanced 24.2MP BSI full frame Image Sensor w/ 1.8X readout speed
- 15 stop dynamic range, 14 bit uncompressed RAW, ISO 50 to 204,800. Compatible with Sony E mount lenses. Can be connected via Bluetooth with smartphones featuring (as of the date of release)- Android (Android 5.0 or later, Bluetooth 4.0 or later), iOS (Bluetooth 4.0 or later)
- Up to 10fps silent or mechanical shutter with AE/AF tracking. Battery life (Still Images): Approx. 610 shots (Viewfinder) / approx. 710 shots (LCD monitor), battery life (Movie, continuous recording): Approx. 200 min (Viewfinder) / Approx. 210 min (LCD monitor)
- 693 phase detection / 425 contrast AF points w/ 93 percent image coverage. Focus sensor: Exmor R CMOS sensor


Both the Panasonic Lumix S1 and Sony a7III are excellent cameras that offer impressive features and performance. Ultimately, the choice between the two will come down to your personal preferences and needs. If you are looking for a camera with more advanced video features, and are willing to pay a premium price, the Panasonic Lumix S1 is the better option. If you are looking for a more affordable camera with faster autofocus, better low light performance, the a7III is still a fantastic choice to go for.

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