Sigma
sd Quattro one
Latest Foveon APS-C body with 61MP-equivalent detail, unique color rendering, and weather sealing.
$2,499
Launch priceReleased Mar 2024
Sony
Alpha 7R VI
66.8MP stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's AI processing unit.
$4,499
Launch priceReleased Jun 2026
Alpha 7R VI is 2.3 years newer.
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Wins
sd Quattro one
Wins
Alpha 7R VI
2 categories tied
Which would you choose?
TL;DR — Key differences
- BAlpha 7R VI has higher AF points / zones (759 vs 49)
- BAlpha 7R VI has higher Max video bit rate (600 Mbps vs 150 Mbps)
- BAlpha 7R VI has higher EVF resolution (9,437,184 vs 2,360,000)
- BAlpha 7R VI has higher RAW buffer depth (150 frames vs 60 frames)
- BAlpha 7R VI has higher Burst (electronic) (30 fps vs 15 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to sharesd Quattro one
114 × 70 × 60 mm
625 g (1.38 lb / 22.05 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
sd Quattro one is 19mm narrower, 27mm shorter, and 23mm thinner than Alpha 7R VI.
sd Quattro one is 88 g lighter than Alpha 7R VI.
Depth (front-to-back): 60mm sd Quattro one · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
sd Quattro one
114 × 70 mm
Credit card
85.6 × 54 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
sd Quattro one
114 × 60 mm
Credit card
85.6 × 54 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
sd Quattro one
23.5 × 15.7 mm · APS-C
369 mm² area
Alpha 7R VI
35.9 × 24 mm · Full Frame
862 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
sd Quattro one: mount data unavailable
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
sd Quattro one
Dimensions (W×H×D mm)
Adds 113.9, 69.9, 59.9
Card types
Adds SD UHS-II
Pre-Capture / Pre-Release
Only sd Quattro one supports it
Weather sealing
Only sd Quattro one supports it
Weight
625 g vs 713 g — lower is better
Battery life (CIPA)
640 shots vs 600 shots — higher is better
Reasons to choose
Alpha 7R VI
AF low-light limit
-6 EV vs -5 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
AF points / zones
759 vs 49 — higher is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
EVF resolution
9,437,184 vs 2,360,000 — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
sd Quattro one
Pros
- ✓Unique Foveon color science
- ✓61MP-equivalent detail
- ✓Weather sealed
- ✓Distinct stills look
Cons
- –Slow operation
- –Limited SA lens line
- –Poor high ISO
Alpha 7R VI
Pros
- ✓66.8MP stacked full-frame sensor
- ✓30fps blackout-free electronic burst
- ✓8K 30p and 4K 120p video
- ✓5-axis sensor-shift stabilization
- ✓9.44M-dot HDR OLED EVF
Cons
- –Very expensive
- –Large files demand fast cards and storage
- –8K workflow can be heavy
Decided which one is right for you?
Compare live prices for the sd Quattro one and Alpha 7R VI at major authorized retailers.
Sigma sd Quattro one
Sony Alpha 7R VI
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for travel, sd Quattro one or Alpha 7R VI?
sd Quattro one scores 7.5/10 versus 5.0/10 for Alpha 7R VI — 625g — compact and travel-friendly.
What's the resolution difference between the sd Quattro one and Alpha 7R VI?
sd Quattro one is 61 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.
Do the sd Quattro one and Alpha 7R VI have in-body image stabilization?
sd Quattro one has 6-stop in-body image stabilization, while Alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the sd Quattro one or the Alpha 7R VI?
sd Quattro one reaches 15 fps electronic. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the sd Quattro one and Alpha 7R VI?
sd Quattro one weighs 625 g and Alpha 7R VI weighs 713 g, so the sd Quattro one is 88 g lighter.
Do the sd Quattro one and Alpha 7R VI record 4K video?
sd Quattro one: 4K up to 60p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the sd Quattro one and Alpha 7R VI weather sealed?
sd Quattro one: Yes. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the sd Quattro one and 600 shots for the Alpha 7R VI, giving the sd Quattro one the edge.
How much does each cost?
sd Quattro one launched at $2,499 and Alpha 7R VI at $4,499. The sd Quattro one is $2,000 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way sd Quattro one vs Alpha 7R VI vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Sigma and Sony press materials.