Sony
Alpha 7R III
42MP workhorse for landscape and studio before the A7R IV/V era.
$3,199
Released Oct 2017
Sony
Alpha 7R VI
66.8MP fully-stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's new BIONZ XR2 engine.
$4,499
Released Jun 2026
Alpha 7R VI is 8.6 years newer.
Wins
Alpha 7R III
Wins
Alpha 7R VI
3 categories tied
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TL;DR — Key differences
- BAlpha 7R VI has higher 4K max frame rate (120 fps vs 30 fps)
- BAlpha 7R VI has higher Max video bit rate (600 Mbps vs 150 Mbps)
- BAlpha 7R VI has higher Burst (electronic) (30 fps vs 10 fps)
- BAlpha 7R VI has higher EVF resolution (9,437,184 vs 3,686,400)
- BAlpha 7R VI has higher AF points / zones (759 vs 399)
Key specs at a glance
Size and weight, to scale
Alpha 7R III
127 × 96 × 74 mm
657 g (1.45 lb / 23.18 oz)
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
Alpha 7R III is 6mm narrower, 1mm shorter, and 9mm thinner than Alpha 7R VI.
Alpha 7R III is 56 g lighter than Alpha 7R VI.
Depth (front-to-back): 74mm Alpha 7R III · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
Alpha 7R III
127 × 96 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Alpha 7R III
127 × 74 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
Alpha 7R III
35.9 × 24 mm · Full Frame
862 mm² area
Alpha 7R VI
35.9 × 24 mm · Full Frame
862 mm² area
Lens ecosystem
Native lens selection
Alpha 7R III
✓ more lensesSony E
350+
native lenses available
Alpha 7R VI
✓ more lensesSony E
350+
native lenses available
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
Alpha 7R III
Dimensions (W×H×D mm)
Adds 126.9, 95.6, 73.7
Card types
Adds SD UHS-II, SD UHS-I
AA filter
Only Alpha 7R III supports it
Weather sealing
Only Alpha 7R III supports it
Codecs
Adds AVCHD
Weight
657 g vs 713 g — lower is better
Battery life (CIPA)
650 shots vs 600 shots — higher is better
Reasons to choose
Alpha 7R VI
AF low-light limit
-6 EV vs -3 EV — lower is better
Dimensions (W×H×D mm)
Adds 132.7, 96.9, 82.9
Card types
Adds CFexpress Type A, SDXC UHS-II
4K max frame rate
120 fps vs 30 fps — higher is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
Subject recognition
Adds Bird, Eye, Insect…
Burst (electronic)
30 fps vs 10 fps — higher is better
EVF resolution
9,437,184 vs 3,686,400 — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 32,000
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Card slots — Both 2
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Alpha 7R III
Pros
- ✓42MP proven
- ✓10fps with AF
- ✓Dual slots
- ✓Great used value
Cons
- –Superseded
- –No 8K
- –Older AF
Alpha 7R VI
Pros
- ✓66.8MP fully-stacked Exmor RS sensor
- ✓30fps blackout-free electronic burst
- ✓8K 30p and 4K 120p video
- ✓8.5-stop in-body stabilization
- ✓9.44M-dot HDR OLED EVF
Cons
- –Very expensive
- –Large files demand fast cards and storage
- –8K workflow can be heavy
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, Alpha 7R III or Alpha 7R VI?
Alpha 7R VI scores 8.0/10 versus 5.0/10 for Alpha 7R III — 8K recording for future-proof footage.
What's the resolution difference between the Alpha 7R III and Alpha 7R VI?
Alpha 7R III is 42.4 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.
Do the Alpha 7R III and Alpha 7R VI have in-body image stabilization?
Alpha 7R III has 5.5-stop in-body image stabilization, while alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the Alpha 7R III or the Alpha 7R VI?
Alpha 7R III reaches 10 fps electronic. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the Alpha 7R III and Alpha 7R VI?
Alpha 7R III weighs 657 g and Alpha 7R VI weighs 713 g, so the Alpha 7R III is 56 g lighter.
Do the Alpha 7R III and Alpha 7R VI record 4K video?
Alpha 7R III: 4K up to 30p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the Alpha 7R III and Alpha 7R VI weather sealed?
Alpha 7R III: Yes. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 650 shots (CIPA) for the Alpha 7R III and 600 shots for the Alpha 7R VI, giving the Alpha 7R III the edge.
How much does each cost?
Alpha 7R III launched at $3,199 and Alpha 7R VI at $4,499. The Alpha 7R III is $1,300 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Sony press materials.