Sony A7 IV vs A7R III (A7R IIIA) - What's the Difference? (Full Comparison)

The Sony A7 IV and A7R III are two of the most popular cameras on the market. But what are the differences between them?

That’s what we’ll take a look at in this full comparison.

Let’s dive in.

Table of Contents

Sony A7 IV vs A7R III (A7R IIIA) – Comparing the Differences

Price

Budget is always top of mind, so let’s start with price.

The Sony A7 IV has an MSRP of around $2,499.

The Sony A7R IV, on the other hand, carries a retail price tag of $2,999.

These do change, so always check for price and availability.

Sensor

The Sony A7 IV has a full-frame sensor, while the A7R III has a cropped sensor.

The A7 IV’s sensor is 24 megapixels, while the A7R III’s sensor is 42 megapixels.

Image Quality

The Sony A7 IV produces great image quality. However, the A7R III produces even better image quality due to its higher megapixel count.

Video Quality

The Sony A7 IV can record 4K video at up to 30fps, while the A7R III can record 4K video at up to 60fps.

Additionally, the A7R III can record 1080p video at up to 120fps for slow motion playback.

Autofocus System

The Sony A7 IV has a hybrid autofocus system with 693 phase detection points and 425 contrast detection points.

The A7R III has a similar autofocus system with 693 phase detection points and 425 contrast detection points.

Both cameras have great autofocus systems, but the A7R III’s is slightly better due to its higher point count.

Viewfinder and LCD

The Sony A7 IV has an electronic viewfinder with 2,359k dots of resolution. The A7R III has an electronic viewfinder with 3,686k dots of resolution.

The A7R III’s viewfinder is significantly better than the A7 IV’s viewfinder. It’s brighter, has more detail, and has a higher refresh rate.

The A7 IV has a 3″ LCD with 1,228k dots of resolution. The A7R III has a 3″ LCD with 1,440k dots of resolution.

Both cameras have great LCDs, but the A7R III’s is slightly better due to its higher resolution.

Battery Life

The Sony A7 IV has a battery life of up to 740 shots per charge. The A7R III has a battery life of up to 530 shots per charge.

The A7 IV has significantly better battery life than the A7R III.

Build Quality and Weather Sealing

The Sony A7 IV has a magnesium alloy body with weather sealing. The A7R III also has a magnesium alloy body, but it does not have weather sealing.

Both cameras are well-built, but the A7 IV is better-built thanks to its weather sealing.

Ports and Connectivity

The Sony A7 IV has USB 3.0, HDMI, and microphone ports. The A7R III has USB 3.1, HDMI, and microphone ports.

Both cameras have great port options, but the A7R III’s are slightly better due to its faster USB port and higher resolution HDMI port.

Continuous Shooting Speed

The Sony A7 IV has a continuous shooting speed of up to 10fps. The A7R III has a continuous shooting speed of up to 9fps.

Both cameras have great continuous shooting speeds, but the A7 IV is slightly better due to its higher fps.

Memory Card Slots

The Sony A7 IV has two memory card slots. The A7R III has one memory card slot.

The A7 IV is better-equipped than the A7R III thanks to its dual memory card slots.

Other Features

The Sony A7 IV has WiFi and Bluetooth connectivity. The A7R III has WiFi and NFC connectivity.

Both cameras have great wireless connectivity options, but the A7R III’s NFC makes it slightly better-equipped than the A7 IV.

Sony A7 IV vs A7R III (A7R IIIA) – Which Should You Choose?

So, which camera should you choose? If you’re looking for the best image quality, go with the A7R III.

If you’re looking for the best video quality, go with the A7R III.

If you’re looking for the best autofocus system, go with the A7R III.

If you’re looking for the best viewfinder, go with the A7R III.

If the best battery life is most important, go with the A7 IV.

For the best build quality and weather sealing, go with the A7 IV.

The best port options, go with the A7R III.

Lastly, if you’re looking for the best continuous shooting speed, go with the A7 IV.

If you need dual memory card slots, then the A7 IV is your only option.

Overall, the A7R III is the better camera thanks to its higher resolution sensor, better autofocus system, better viewfinder, and faster continuous shooting speed. The A7 IV is a great camera as well, but it doesn’t quite match up to the A7R III in terms of overall performance.

Sony A7 IV vs A7R III / A7R IIIa – Which One is Better? – Full Comparison

FAQs – Sony A7 IV vs A7R III (A7R IIIA)

So, which camera should you choose?

The Sony A7 IV is a great camera for general photography and videography. It has a great sensor, great autofocus system, and great build quality. If you’re looking for a all-around great camera, the A7 IV is a great option.

The Sony A7R III is a great camera for photographers who need the best image quality possible. Its higher megapixel sensor produce stunning images, and its 4K video capabilities are top-notch. If you’re looking for the best possible image and video quality, the A7R III is the camera for you.

Do you need the extra megapixels of the A7R III?

If you’re shooting landscapes or other scenes where detail is important, then the extra megapixels will be worth the price difference. If you don’t think you’ll need them, then save yourself some money and go with the A7 IV.

Do you need 4K video?

If you’re a serious videographer or need the best possible video quality for your YouTube channel, then the A7R III is worth the extra cost. If you don’t need 4K video, then stick with the A7 IV.

Do you need dual memory card slots?

If you shoot a lot of video or RAW photos, then the extra storage capacity of dual memory card slots will be worth the price difference. If you don’t think you’ll need them, then go with the A7 IV.

The Sony A7R III is the better camera for most people thanks to its higher megapixel sensor, 4K video capabilities, and dual memory card slots. The A7 IV is a great camera as well, but it doesn’t quite match up to the A7R III in terms of overall performance.

Conclusion – Sony A7 IV vs A7R III (A7R IIIA)

When it comes to image quality, the A7R III is the clear winner. It has a higher resolution sensor, and it produces images that are sharper and have more detail.

The A7 IV has a slightly lower resolution sensor, and its images are not as sharp or detailed as the A7R III.

The A7R III also has better autofocus than the A7 IV. It can focus faster and more accurately, even in low light conditions.

The A7 IV’s autofocus is good, but it can’t match the speed and accuracy of the A7R III.

The A7R III also has a better viewfinder than the A7 IV. It’s larger and brighter, making it easier to compose your shots.

The A7 IV’s viewfinder is good, but it’s not as large or bright as the A7R III.

The A7R III can shoot 4K video, while the A7 IV can only shoot 1080p video.

The A7R III also has dual memory card slots, while the A7 IV only has one memory card slot.

Overall, the A7R III is the better camera thanks to its higher megapixel sensor, 4K video capabilities, better autofocus system, and dual memory card slots.

The A7 IV is a great camera as well, but it doesn’t quite match up to the A7R III in terms of overall performance.

Sony A7 IV vs A7R III (A7R IIIA) – What’s the Difference? (Full Comparison)