Panasonic
Lumix S1 II
24MP partially stacked full-frame hybrid with high frame rate video, fast burst shooting, and 15-stop V-Log.
$3,199
Released May 2025
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
Lumix S1 II is 3.6 years newer.
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Wins
Lumix S1 II
Wins
Alpha 7 IV
6 categories tied
TL;DR — Key differences
- ALumix S1 II has higher Burst (electronic) (70 fps vs 10 fps)
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 200 frames)
- ALumix S1 II has higher Max video bit rate (1900 Mbps vs 600 Mbps)
- ALumix S1 II has higher 4K max frame rate (120 fps vs 60 fps)
- BAlpha 7 IV has higher Battery life (CIPA) (580 shots vs 350 shots)
Key specs at a glance
Size and weight, to scale
Lumix S1 II
134 × 102 × 92 mm
800 g (1.76 lb / 28.22 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
Lumix S1 II is 3mm wider, 6mm taller, and 12mm thicker than Alpha 7 IV.
Lumix S1 II is 142 g heavier than Alpha 7 IV.
Depth (front-to-back): 92mm Lumix S1 II · 80mm Alpha 7 IV
Sensor size, to scale
Lumix S1 II
35.6 × 23.8 mm · Full Frame
847 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
Lumix S1 II: mount data unavailable
Alpha 7 IV
✓ 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
Lumix S1 II
AF low-light limit
-6 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 134.3, 102.3, 91.8
Burst (electronic)
70 fps vs 10 fps — higher is better
Max video bit rate
1900 Mbps vs 600 Mbps — higher is better
Subject recognition
Adds Face, Eye, Car…
Codecs
Adds Apple ProRes RAW, Apple ProRes 422 HQ, MOV…
Pre-Capture / Pre-Release
Only Lumix S1 II supports it
4K max frame rate
120 fps vs 60 fps — higher is better
Reasons to choose
Alpha 7 IV
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 200 frames — higher is better
Subject recognition
Adds Bird, Insect, Car/Train…
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
AA filter
Only Alpha 7 IV supports it
Card types
Adds CFexpress Type A
Battery life (CIPA)
580 shots vs 350 shots — higher is better
Resolution
33 MP vs 24.1 MP — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 51,200
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Burst (mechanical) — Both 10 fps
- ✓Internal RAW video — Both support internal raw video
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Lumix S1 II
Pros
- ✓Partially stacked full-frame sensor
- ✓6K open-gate video
- ✓4K 120p
- ✓Fast Phase Hybrid AF
Cons
- –Premium hybrid body
- –24MP stills resolution
- –Large L-mount lenses
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Decided which one is right for you?
Compare live prices for the Lumix S1 II and Alpha 7 IV at major authorized retailers.
Panasonic Lumix S1 II
Sony Alpha 7 IV
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Lumix S1 II or Alpha 7 IV?
Lumix S1 II scores 9.0/10 versus 6.0/10 for Alpha 7 IV — 70fps burst — pro-level action capture.
What's the resolution difference between the Lumix S1 II and Alpha 7 IV?
Lumix S1 II is 24.1 MP and Alpha 7 IV is 33 MP, so the Alpha 7 IV captures more detail for cropping and large prints.
Do the Lumix S1 II and Alpha 7 IV have in-body image stabilization?
Lumix S1 II has 8-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Lumix S1 II or the Alpha 7 IV?
Lumix S1 II reaches 70 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the Lumix S1 II and Alpha 7 IV?
Lumix S1 II weighs 800 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 142 g lighter.
Do the Lumix S1 II and Alpha 7 IV record 4K video?
Lumix S1 II: 6K Open Gate (max), 4K up to 120p. Alpha 7 IV: 4K up to 60p.
Are the Lumix S1 II and Alpha 7 IV weather sealed?
Lumix S1 II: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 350 shots (CIPA) for the Lumix S1 II and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
Lumix S1 II launched at $3,199 and Alpha 7 IV at $2,499. The Alpha 7 IV is $700 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Panasonic and Sony press materials.