Notice: Your browser is not supported or outdated so some features of the site might not be available.
- Table of Contents
- Top
- Main Differences
- Design
- Photo General
- Photo Image Quality
- Pictures Sample Gallery
- Video General
- 4k Video
- Full HD Video
- Video Image Quality
- Storage And Connectivity
- Comments
Sony α7 III vs Sony α7 IV
Side-by-Side Comparison
Products
Sony α7 III
Sony α7 IV
Tested using Methodology v0.13
Updated Feb 24, 2025 06:15 PM
SEARCH
Amazon.comTested using Methodology v0.13
Updated Apr 03, 2025 02:47 PM
SEE PRICE
Amazon.com
Body TypeSLR-Style
MirrorlessYes
Sensor SizeFull Frame
Body TypeSLR-Style
MirrorlessYes
Sensor SizeFull Frame
Variants
- a7 III (Black (Body Only))
- a7 III (Black W/ 28-70mm Lens)
- α7 IV (Black (Body Only))
- α7 IV (Black W/ 24-105mm lens)
Our Verdict
Sony α7 III
Sony α7 IV
The Sony α7 IV replaces the Sony α7 III. It has a new, higher-resolution 33-megapixel sensor and an improved autofocus system. Physically, the α7 IV is a little bigger and includes two UHS-II SD card slots, one of which has an integrated CFexpress Type A slot and has a fully articulated touchscreen and improved menu system. The α7 III, on the other hand, has two SD card slots, but only one of them is rated for UHS-II cards and has a tilting screen and more confusing menu. While both are fantastic cameras for photography, the α7 IV supports 10-bit 4:2:2 video recording internally and can capture video at exceptionally high bit rates, making it the better option for videographers. If you're mainly interested in photography, the α7 III still offers a lot of value.
Check Price
Black (Body Only)
a7 III
Searching
Finding storeBlack (Body Only)
α7 IV
Searching
Finding storeBlack W/ 28-70mm Lens
a7 III
Searching
Finding storeBlack W/ 24-105mm lens
α7 IV
Searching
Finding storeMain Differences forTravel Photography
Travel Photography
Threshold
Travel Photography
7.8
7.7
Minimum Shutter Speed Achieved
1/20 s
1/30 s
Full Comparison
Design
Portability
4.1
3.9
Portability Picture
Height
3.8" (9.6 cm)
3.8" (9.6 cm)
Width
5.4" (13.8 cm)
5.6" (14.3 cm)
Depth
3.1" (7.9 cm)
3.2" (8.1 cm)
Volume
63.9 in³ (1,046.6 cm³)
67.9 in³ (1,112.0 cm³)
Weight
1.43 lbs (0.65 kg)
1.47 lbs (0.67 kg)
Build Quality
8.0
9.0
Build Quality Picture
Body
Body Picture
Body Type
SLR-Style
SLR-Style
Water Resistance
No
Weather-Sealed
Mirrorless
Yes
Yes
Rugged
No
No
Hot Shoe
Yes
Yes
Customizable Button
Yes
Yes
Command Dial
3
4
Tripod Mount
Yes
Yes
Lens Mount
E-Mount
E-Mount
Built-In Flash
No
No
Fastest Shutter Speed
1/8,000 s
1/8,000 s
In The Box
In The Box Picture
Ergonomics & Comfort
8.5
8.5
Hand Grip Picture
Hand Grip: Small Hand
Yes
Yes
Hand Grip: Medium Hand
Yes
Yes
Hand Grip: Large Hand
Yes
Yes
Hand Grip: Extra-Large Hand
No
Yes
Viewfinder
EVF Menu Picture
Viewfinder Type
Electronic
Electronic
Advertised Coverage
100%
100%
Advertised Resolution
2.36 million dots
3.69 million dots
Advertised Magnification
0.78
0.78
Screen
6.7
9.2
Screen Picture
Screen Articulation Type
Tilting
Fully-Articulated
Screen Max Brightness
665 cd/m²
800 cd/m²
Advertised Resolution
0.92 million dots
1.04 million dots
Size
3.0" (7.5 cm)
3.0" (7.5 cm)
Touchscreen
Limited
Yes
Menu System
6.5
9.0
Screen Menu Picture
Guide Mode
Yes
Yes
App Name
Imaging Edge Mobile
Creators' App
Built-In Lens
0.0
0.0
Aperture Vs Focal Length
Maximum Aperture
No built-in lens
No built-in lens
Max Aperture (Full-Frame Equivalent)
N/A
N/A
Minimum Focal Length
N/A
N/A
Maximum Focal Length
N/A
N/A
Max Focal Length (Full-Frame Equivalent)
N/A
N/A
Optical Image Stabilization
No
No
Light Falloff Picture
Luminance
N/A
N/A
Light Falloff
N/A
N/A
Sensor
Sensor Type
BSI CMOS
BSI CMOS
Advertised Effective Pixels
24.2 MP
33 MP
Processor
BIONZ X
BIONZ XR
Sensor Size
Full Frame
Full Frame
Extended ISO Minimum
50
50
Native ISO Minimum (Base ISO)
100
100
Native ISO Maximum
51,200
51,200
Tested Firmware
Version 3.10
Version 1.10
Battery
9.4
8.6
Battery Type
Sony NP-FZ100
Sony NP-FZ100
USB Charging
Yes
Yes
Power Delivery While Recording
Yes
Yes
Advertised Battery Life In Photo
610 photos
580 photos
Tested Battery Life In Video
137 min
105 min
Photo General
Photo Shooting Speed
7.3
7.9
Low Speed Continuous
4 fps
4 fps
High Speed Continuous
10 fps
10 fps
Silent Shooting Continuous
9 fps
10 fps
Raw Buffer Size
40 Photos
10,000 Photos
JPEG Buffer Size
164 Photos
10,000 Photos
Buffer Empty Time
10 s
0 s
Photo AF-C Tracking
6.8
8.7
Autofocus Tracking Shots
Run 01
AF-C Tracking 01
Run 01
AF-C Tracking 01
Perfect Focus Hit Rate
50%
77%
Usable Focus Hit Rate
85%
94%
Photo AF-C Center Point
10
9.7
Autofocus Center Point Shots
Run 01
AF-C Center Point 01
Run 01
AF-C Center Point 01
Perfect Focus Hit Rate
100%
96%
Usable Focus Hit Rate
100%
99%
Photo Image Stabilization
7.3
6.6
Stabilization Slideshow
Minimum Shutter Speed Achieved
1/20 s
1/30 s
In-Body Image Stabilization
Yes
Yes
Photo Image Quality
Photo RAW Dynamic Range
9.0
8.7
Dynamic Range Scene
Dynamic Range At Base ISO
11.2 f-stops
11.0 f-stops
Dynamic Range At 1/500s Exposure Time
9.8 f-stops
9.6 f-stops
Dynamic Range At 1/2000s Exposure Time
8.0 f-stops
7.5 f-stops
Dynamic Range At 1/4000s Exposure Time
7.3 f-stops
6.9 f-stops
Photo RAW Sharpness
8.9
9.0
Sharpness Scene Crop
Vertical Edge MTF50 At Base ISO
1,993 LW/PH
2,116 LW/PH
Horizontal Edge MTF50 At Base ISO
2,541 LW/PH
2,630 LW/PH
Photo RAW Noise
7.9
7.7
Noise Scene Crop
Noise Vs Exposure Time
SNR 18% At 1/8 Exposure Time (125 ms)
34.5 dB
34.5 dB
SNR 18% At 1/30 Exposure Time (33 ms)
32.6 dB
32.2 dB
SNR 18% At 1/125 Exposure Time (8 ms)
28.7 dB
27.7 dB
SNR 18% At 1/500 Exposure Time (2 ms)
23.4 dB
22.3 dB
Pictures Sample Gallery
Video General
Video Features
Full HD Video
Yes
Yes
4k Video
Yes
Yes
6k Video
No
No
Clean HDMI Output
Yes
Yes
Advertised Max Chroma Sampling Over HDMI
4:2:2
4:2:2
Advertised Max Bit Depth Over HDMI
8 bits
10 bits
Log Picture Profile
Yes
Yes
Recording Light
No
No
Audio
Audio Test Sample
Audio Recording
Stereo
Stereo
Microphone Level Display
Yes
Yes
Video File Format And Compression
MP4 H.264 / MPEG-4 AVC
No
Yes
MP4 H.265 / HEVC
No
Yes
MOV H.264 / MPEG-4 AVC
No
No
MOV H.265 / HEVC
No
No
AVCHD H.264 / MPEG-4 AVC
Yes
Yes
All-I Compression
No
Yes
4k Video
4k Video Frame Rate
7.2
9.0
240 fps In 4k
No
No
120 fps In 4k
No
No
60 fps In 4k
No
Yes, with a Crop
30 fps In 4k
Yes, with a Crop
Yes
24 fps In 4k
Yes
Yes
4k Crop At Max Available fps
1.165 x
1.5 x
4k Video Internal Recording
7.8
10
Bitrate Maximum In 4k
100 Mbps
567 Mbps
Bitrate Minimum In 4k
60 Mbps
60 Mbps
Chroma Sampling In 4k
4:2:0
4:2:2
Bit Depth In 4k
8 Bit
10 Bit
Record Time Limit In 4k
30 min
N/A
Overheat Recording Interruptions in 4k
0
0
4k Video Autofocus Performance
8.9
9.7
4k Object Tracking Video
Object Tracking In 4k
9.7
9.7
4k Face Tracking Video
Face Tracking In 4k
9.5
9.5
Face Detection In 4k
Yes
Yes
Eye Detection In 4k
No
Yes
4k Video Quality
8.2
8.8
4k Sample Low Light Video
Low Light Capability In 4k
7.5
8.5
4k Test Scene Extract
Test Scene Extract In 4k
8.9
9.0
4k Video Rolling Shutter Effect
6.4
5.5
Rolling Shutter Video in 4k
4k Rolling Shutter
5.7°
7.3°
Full HD Video
FHD Video Frame Rate
9.5
9.5
240 fps In FHD
No
No
120 fps In FHD
Yes
Yes
60 fps In FHD
Yes
Yes
30 fps In FHD
Yes
Yes
24 fps In FHD
Yes
Yes
FHD Crop At Max Available fps
1 x
1 x
FHD Video Internal Recording
7.7
10
Bitrate Maximum In FHD
100 Mbps
207 Mbps
Bitrate Minimum In FHD
16 Mbps
14 Mbps
Chroma Sampling In FHD
4:2:0
4:2:2
Bit Depth In FHD
8 Bit
10 Bit
Record Time Limit in FHD
30 min
N/A
FHD Video Autofocus Performance
9.0
9.5
Object Tracking Video
Object Tracking In FHD
10
9.0
FHD Face Tracking Video
Face Tracking In FHD
9.5
9.8
Face Detection In FHD
Yes
Yes
Eye Detection In FHD
No
Yes
FHD Video Quality
9.1
8.5
FHD Sample Low Light Video
Low Light Capability In FHD
9.0
8.5
FHD Test Scene Extract In FHD
Test Scene Extract In FHD
9.2
8.5
FHD Video Rolling Shutter Effect
7.5
8.2
Rolling Shutter Video in FHD
FHD Rolling Shutter
3.0°
2.0°
Video Image Quality
Video Dynamic Range
8.3
8.9
Video Dynamic Range Waveform
Video Dynamic Range Slideshow
Strict SNR Max Dynamic Range
7.04 stops
10.50 stops
Lenient SNR Max Dynamic Range
10.50 stops
11.51 stops
Background Floor Max Dynamic Range
13.92 stops
13.92 stops
Luminosity Patch Detection
7.9
8.3
Luminosity Patch Detection Chart
Above Middle Gray
5.17 stops
5.17 stops
Below Middle Gray
9.09 stops
9.98 stops
Storage And Connectivity
Storage
Card Slot Picture
Card 1 Slot
SD Card UHS-II
CFexpress Type A and UHS-II
Card 2 Slot
SD Card UHS-I
SD Card UHS-II
Inputs / Outputs
9.5
10
Input Picture
USB
USB-C
USB-C
HDMI
Micro (Type D)
Full Size (Type A)
Headphones
Yes
Yes
Microphone
Stereo
Stereo
Wi-Fi
Yes
Yes
Bluetooth
Yes
Yes
Check Price
Black (Body Only)
a7 III
Searching
Finding storeBlack (Body Only)
α7 IV
Searching
Finding storeBlack W/ 28-70mm Lens
a7 III
Searching
Finding storeBlack W/ 24-105mm lens
α7 IV
Searching
Finding store
You have 10/10 free reviews left
To access
and
Become an Insider
unlimited full product reviews,
product prices
other exclusive site features
Sony α7 III
Sony α7 IV
Comments
Sony α7 III vs Sony α7 IV: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.