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Panasonic

Lumix S1R II

High-resolution 44.3MP full-frame L-mount body with 8K video, phase hybrid AF, and compact S-series ergonomics.

$3,299

Launch price

Released Feb 2025

vs
Alpha 7R VI

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 price

Released Jun 2026

Alpha 7R VI is 1.3 years newer.

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Wins

5categories

Lumix S1R II

Sports & ActionVideo & Hybrid

Wins

6categories

Alpha 7R VI

PortraitVideo & Hybrid

3 categories tied

Which would you choose?

TL;DR — Key differences

Lumix S1R II wins 2 categories·Alpha 7R VI wins 3 categories
  • ALumix S1R II has higher Max video bit rate (1900 Mbps vs 600 Mbps)
  • BAlpha 7R VI has higher RAW buffer depth (150 frames vs 70 frames)
  • BAlpha 7R VI has higher Battery life (CIPA) (600 shots vs 350 shots)
  • BAlpha 7R VI has higher EVF resolution (9,437,184 vs 5,760,000)
  • ALumix S1R II has higher ISO max (native) (51,200 vs 32,000)

Key specs at a glance

Lumix S1R IIAlpha 7R VI
Resolution44.3 MP66.8 MP
SensorAPS-CFull Frame
ISO max51,20032,000
Burst40 fps30 fps
4K120 fps120 fps
IBIS8-stopYes
Weight795 g713 g
Battery350 shots600 shots

Size and weight, to scale

Lumix S1R II

134 × 102 × 92 mm

795 g (1.75 lb / 28.04 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

Alpha 7R VI front view

Alpha 7R VI

133 × 97 × 83 mm

713 g (1.57 lb / 25.15 oz)

Lumix S1R II is 2mm wider, 5mm taller, and 9mm thicker than Alpha 7R VI.

Lumix S1R II is 82 g heavier than Alpha 7R VI.

Depth (front-to-back): 92mm Lumix S1R II · 83mm Alpha 7R VI

Back view, to scale

Width × Height — same proportions as the front of the body.

Lumix S1R II

134 × 102 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

Alpha 7R VI back view

Alpha 7R VI

133 × 97 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

Lumix S1R II

134 × 92 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

Alpha 7R VI top view

Alpha 7R VI

133 × 83 mm

Sensor size, to scale

Lumix S1R II

35.8 × 23.9 mm · Full Frame

856 mm² area

Alpha 7R VI

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

Lumix S1R II: mount data unavailable

Alpha 7R VI

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

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

Use caseLumix S1R IIAlpha 7R VI
Portrait
8.5Excellent
8.5Excellent
Sports & Action
10.0Excellent✓ wins
7.0Good
Video & Hybrid
9.5Excellent✓ wins
8.0Excellent
Landscape
8.5Excellent✓ wins
7.5Good
Travel
4.5Fair
5.0Fair✓ wins
Wildlife
8.0Excellent✓ wins
6.5Good
Vlogging
5.5Fair
5.5Fair

Why pick one over the other

Reasons to choose

Lumix S1R II

  • Dimensions (W×H×D mm)

    Adds 134.3, 102.3, 91.8

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • Max video bit rate

    1900 Mbps vs 600 Mbps — higher is better

  • Codecs

    Adds Apple ProRes RAW, Apple ProRes 422 HQ, MOV…

  • Subject recognition

    Adds Face, Car, Motorcycle

  • Pre-Capture / Pre-Release

    Only Lumix S1R II supports it

  • Internal RAW video

    Only Lumix S1R II supports it

  • Weather sealing

    Only Lumix S1R II supports it

Reasons to choose

Alpha 7R VI

  • Dimensions (W×H×D mm)

    Adds 132.7, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SDXC UHS-II

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I

  • RAW buffer depth

    150 frames vs 70 frames — higher is better

  • Subject recognition

    Adds Bird, Insect, Vehicle

  • Battery life (CIPA)

    600 shots vs 350 shots — higher is better

  • EVF resolution

    9,437,184 vs 5,760,000 — higher is better

  • Resolution

    66.8 MP vs 44.3 MP — higher is better

Both cameras share

  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • 4K max frame rateBoth 120 fps
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)
  • Card slotsBoth 2
  • TouchscreenBoth support touchscreen

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Lumix S1R II

Pros

  • 44.3MP full-frame BSI sensor
  • 8K video
  • Phase Hybrid AF
  • CFexpress plus SD workflow

Cons

  • Large high-res files
  • Premium price
  • L-mount lens size

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 Lumix S1R II and Alpha 7R VI at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

Lumix S1R II
Alpha 7R VI
Resolution
44.3 MP
66.8 MP+51%
Sensor type
35mm Full-Frame BSI CMOS
Full-Frame Stacked CMOS
Sensor size
35.8 x 23.9 mm
35.9 × 24.0 mm
AA filter
No
No
Lumix S1R II
Alpha 7R VI
Processor
Venus Engine
BIONZ XR with AI processing unit
Lumix S1R II
Alpha 7R VI
ISO min (native)
80−20 less
100
ISO max (native)
51,200+0.7 stops
32,000
ISO max (expanded)
102,400
102,400
Lumix S1R II
Alpha 7R VI
Shutter type
Focal-plane mechanical + electronic shutter
Mechanical focal plane shutter + electronic rolling shutter
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, Lumix S1R II or Alpha 7R VI?

Lumix S1R II scores 10.0/10 versus 7.0/10 for Alpha 7R VI — 40fps burst — pro-level action capture.

What's the resolution difference between the Lumix S1R II and Alpha 7R VI?

Lumix S1R II is 44.3 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.

Do the Lumix S1R II and Alpha 7R VI have in-body image stabilization?

Lumix S1R II has 8-stop in-body image stabilization, while Alpha 7R VI has in-body image stabilization.

Which shoots faster bursts — the Lumix S1R II or the Alpha 7R VI?

Lumix S1R II reaches 40 fps electronic. Alpha 7R VI reaches 30 fps electronic.

What's the weight difference between the Lumix S1R II and Alpha 7R VI?

Lumix S1R II weighs 795 g and Alpha 7R VI weighs 713 g, so the Alpha 7R VI is 82 g lighter.

Do the Lumix S1R II and Alpha 7R VI record 4K video?

Lumix S1R II: 8K (max), 4K up to 120p. Alpha 7R VI: 8K (max), 4K up to 120p.

Are the Lumix S1R II and Alpha 7R VI weather sealed?

Lumix S1R II: Yes. Alpha 7R VI: No.

Which has better battery life?

Rated battery life is 350 shots (CIPA) for the Lumix S1R II and 600 shots for the Alpha 7R VI, giving the Alpha 7R VI the edge.

How much does each cost?

Lumix S1R II launched at $3,299 and Alpha 7R VI at $4,499. The Lumix S1R II is $1,200 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way Lumix S1R II vs Alpha 7R VI vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.

Product images courtesy of Panasonic and Sony press materials.