Panasonic
Lumix G9 II
MFT hybrid with 8-stop IBIS and 75fps stills for wildlife on a budget.
$1,899
Launch priceReleased Sep 2023
Sony
Alpha 7 III
Classic 24MP hybrid that defined the modern full-frame value proposition.
$1,999
Launch priceReleased Feb 2018
Lumix G9 II is 5.5 years newer.
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Wins
Lumix G9 II
Wins
Alpha 7 III
3 categories tied
Which would you choose?
TL;DR — Key differences
- ALumix G9 II has higher Max video bit rate (800 Mbps vs 100 Mbps)
- ALumix G9 II has higher Burst (electronic) (75 fps vs 10 fps)
- ALumix G9 II has higher 4K max frame rate (120 fps vs 30 fps)
- ALumix G9 II has higher RAW buffer depth (200 frames vs 89 frames)
- BAlpha 7 III has higher ISO max (native) (51,200 vs 25,600)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Lumix G9 II
134 × 102 × 90 mm
658 g (1.45 lb / 23.21 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7 III
127 × 96 × 74 mm
650 g (1.43 lb / 22.93 oz)
Lumix G9 II is 7mm wider, 7mm taller, and 16mm thicker than Alpha 7 III.
Lumix G9 II is 8 g heavier than Alpha 7 III.
Depth (front-to-back): 90mm Lumix G9 II · 74mm Alpha 7 III
Back view, to scale
Width × Height — same proportions as the front of the body.
Lumix G9 II
134 × 102 mm
Credit card
85.6 × 54 mm
Alpha 7 III
127 × 96 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Lumix G9 II
134 × 90 mm
Credit card
85.6 × 54 mm
Alpha 7 III
127 × 74 mm
Sensor size, to scale
Lumix G9 II
17.3 × 13 mm · Micro Four Thirds
225 mm² area
Alpha 7 III
35.6 × 23.8 mm · Full Frame
847 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Lumix G9 II
Micro Four Thirds
130+
native lenses available
Alpha 7 III
✓ 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 G9 II
AF low-light limit
-4 EV vs -3 EV — lower is better
Dimensions (W×H×D mm)
Adds 134.3, 102.3, 90.1
Max video bit rate
800 Mbps vs 100 Mbps — higher is better
Burst (electronic)
75 fps vs 10 fps — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Subject recognition
Adds Face, Eye, Car…
Codecs
Adds Apple ProRes 422 HQ, H.265
RAW buffer depth
200 frames vs 89 frames — higher is better
Reasons to choose
Alpha 7 III
Dimensions (W×H×D mm)
Adds 126.9, 95.6, 73.7
Codecs
Adds XAVC S, AVCHD
AA filter
Only Alpha 7 III supports it
ISO max (native)
51,200 vs 25,600 — higher is better
Card types
Adds SD UHS-I
Battery life (CIPA)
710 shots vs 390 shots — higher is better
Weight
650 g vs 658 g — lower is better
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)
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Lumix G9 II
Pros
- ✓75fps stills mode
- ✓8-stop IBIS
- ✓Compact tele reach
Cons
- –MFT sensor
- –Smaller ecosystem
- –Video not GH-level
Alpha 7 III
Pros
- ✓Proven reliability
- ✓Great battery life
- ✓Strong value used
- ✓Dual card slots
Cons
- –Older AF vs newer bodies
- –4K 30p only
- –No 10-bit internal
Decided which one is right for you?
Compare live prices for the Lumix G9 II and Alpha 7 III at major authorized retailers.
Panasonic Lumix G9 II
Sony Alpha 7 III
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Lumix G9 II or Alpha 7 III?
Lumix G9 II scores 10.0/10 versus 4.0/10 for Alpha 7 III — 75fps burst — pro-level action capture.
What's the resolution difference between the Lumix G9 II and Alpha 7 III?
Lumix G9 II is 25.2 MP and Alpha 7 III is 24.2 MP, so the Lumix G9 II captures more detail for cropping and large prints.
Do the Lumix G9 II and Alpha 7 III have in-body image stabilization?
Lumix G9 II has 8-stop in-body image stabilization, while Alpha 7 III has 5-stop in-body image stabilization.
Which shoots faster bursts — the Lumix G9 II or the Alpha 7 III?
Lumix G9 II reaches 75 fps electronic. Alpha 7 III reaches 10 fps electronic.
What's the weight difference between the Lumix G9 II and Alpha 7 III?
Lumix G9 II weighs 658 g and Alpha 7 III weighs 650 g, so the Alpha 7 III is 8 g lighter.
Do the Lumix G9 II and Alpha 7 III record 4K video?
Lumix G9 II: 5.8K Open Gate (max), 4K up to 120p. Alpha 7 III: 4K up to 30p.
Are the Lumix G9 II and Alpha 7 III weather sealed?
Lumix G9 II: Yes. Alpha 7 III: Yes.
Which has better battery life?
Rated battery life is 390 shots (CIPA) for the Lumix G9 II and 710 shots for the Alpha 7 III, giving the Alpha 7 III the edge.
How much does each cost?
Lumix G9 II launched at $1,899 and Alpha 7 III at $1,999. The Lumix G9 II is $100 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Lumix G9 II vs Alpha 7 III vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed October 2026.
Product images courtesy of Panasonic and Sony press materials.