challenger A
Sony
α7 IV
2021
VS
challenger B
Sony
α7S III
2020
ReviewsSony α7 IV
Sony α7 IV vs Sony α7S III — full comparison
Visual summary
— Reads in 5 seconds
8,0/ 10
PhotoExcellent
6,4/ 10
VideoBon
Sony
α7 IV
7,1/ 10
PhotoTrès bon
7,0/ 10
VideoTrès bon
Sony
α7S III
Sony α7 IVSony α7S III
Where to buy
— Live merchant price comparator
Sony α7 IV
SONY a7 IV Mirrorless Camera - Black, Body Only, Black
1 799 GBP · Sony UK
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Standout strengths
— Where each camera shines
Sony
α7 IV
Top advantages
- 33 MPMegapixels2,7× vs Sony α7S III
- 658 gWeight+6 % vs Sony α7S III
- 11.7 EVDynamic range (EV)+4 % vs Sony α7S III
- 94 %AF coverage+2 % vs Sony α7S III
Sony
α7S III
Top advantages
- 102 400Native ISO max2× vs Sony α7 IV
- 409 600Extended ISO max2× vs Sony α7 IV
- 120 fpsMax video fps2× vs Sony α7 IV
- 80Native ISO min+25 % vs Sony α7 IV
Video reviews
— Long-form reviews
Sony α7 IV
Sony a7 IV First Impressions Review
DPReview TV · 20 min
Sony α7S III
—
Detailed spec-by-spec
— Round by round, the eight categories
Round 1
Sensor
SpecSony α7 IVSony α7S III
Sensor format
Full Frame
Full Frame
Sensor type
BSI-CMOS
BSI-CMOS
Megapixels
33 MP
12.1 MP
Sensor size
35.6 × 23.8 mm
35.6 × 23.8 mm
Native ISO min
100
80
Native ISO max
51 200
102 400
Extended ISO max
204 800
409 600
Dynamic range (EV)
11.7 EV
11.2 EV
Round 2
Autofocus
SpecSony α7 IVSony α7S III
AF points
759
759
AF coverage
94 %
92 %
Eye AF (human)
Oui
Oui
Eye AF (animal)
Oui
Oui
AF low light (EV)
-4 EV
-6 EV
Round 3
Speed & burst
SpecSony α7 IVSony α7S III
Mechanical burst
10 fps
10 fps
Electronic burst
10 fps
10 fps
RAW buffer
828
1000
Max shutter speed
1/8000
1/8000
Round 4
Video
SpecSony α7 IVSony α7S III
Max video resolution
4K
4K
Max video fps
60 fps
120 fps
Max bitrate
600 Mb/s
600 Mb/s
Video codecs
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
Recording modes
Long-GOP
All-I, Long-GOP
Chroma subsampling
4:2:0, 4:2:2
4:2:0, 4:2:2
Bit depth
10-bit
10-bit
Log profile
Oui
Oui
Log profiles
S-Log3, S-Cinetone, HLG
S-Log3, S-Log2, S-Cinetone, HLG
Internal RAW
Non
Non
External RAW
—
ProRes RAW, Blackmagic RAW
Rolling shutter
—
13.3 ms
4K crop
1×
1×
Oversampling
Oui
Oui
Open Gate
Non
Non
Anamorphic desqueeze
—
1.3x, 2.0x
LUT support
user LUTs, in-camera LUT preview
user LUTs, in-camera LUT preview
Monitoring tools
waveform, histogram, zebras
waveform, vectorscope, histogram, zebras
Active cooling
Non
Non
Unlimited recording
Oui
Oui
Dual Native ISO
Non
Non
Proxy recording
Non
Non
XLR input
Non
Oui
32-bit float audio
Non
Non
Genlock + Time Code
Non
Non
Round 5
Stabilisation
SpecSony α7 IVSony α7S III
In-body stabilisation
Oui
Oui
IBIS rating
5.5 stops
5.5 stops
Round 6
Build
SpecSony α7 IVSony α7S III
Weather sealing
Oui
Oui
Dual card slots
Oui
Oui
Card types
CFexpress Type A, SD UHS-II
CFexpress Type A, SD UHS-II
Round 7
Ergonomics & screen
SpecSony α7 IVSony α7S III
Weight
658 g
699 g
Dimensions
131.3 x 96.4 x 79.8
128.9 x 96.9 x 80.8
Viewfinder type
EVF
EVF
Viewfinder resolution
3.69 M dots
9.44 M dots
Viewfinder magnification
0.78×
0.9×
Screen size
3″
3″
Screen resolution
1.04 M dots
1.44 M dots
Screen articulation
vari-angle
vari-angle
Touchscreen
Oui
Oui
Round 8
Connectivity & battery
SpecSony α7 IVSony α7S III
Battery life (CIPA)
580 clichés
600 clichés
USB type
USB-C 3.2 Gen2 (10 Gbps)
USB-C 3.2 Gen1 (5 Gbps)
HDMI type
Full (Type A)
Full (Type A)
Wi-Fi
Oui
Oui
Bluetooth
Oui
Oui