Panasonic
Lumix GX9
Compact rangefinder-style Micro Four Thirds camera with 20MP sensor, tilting EVF, IBIS, and 4K video.
$999
Released Feb 2018
Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Released Nov 2024
Alpha 1 II is 6.8 years newer.
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Wins
Lumix GX9
Wins
Alpha 1 II
1 categories tied
TL;DR — Key differences
- BAlpha 1 II has higher AF points / zones (759 vs 49)
- BAlpha 1 II has higher RAW buffer depth (200 frames vs 30 frames)
- BAlpha 1 II has higher 4K max frame rate (120 fps vs 30 fps)
- BAlpha 1 II has higher EVF refresh rate (240 Hz vs 60 Hz)
- BAlpha 1 II has higher EVF resolution (9,437,184 vs 2,760,000)
Key specs at a glance
Size and weight, to scale
Lumix GX9
124 × 72 × 47 mm
450 g (0.99 lb / 15.87 oz)
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
Lumix GX9 is 12mm narrower, 25mm shorter, and 36mm thinner than Alpha 1 II.
Lumix GX9 is 293 g lighter than Alpha 1 II.
Depth (front-to-back): 47mm Lumix GX9 · 83mm Alpha 1 II
Sensor size, to scale
Lumix GX9
17.3 × 13 mm · Micro Four Thirds
225 mm² area
Alpha 1 II
35.9 × 24 mm · Full Frame
862 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Lumix GX9
Micro Four Thirds
130+
native lenses available
Alpha 1 II
✓ 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 GX9
Dimensions (W×H×D mm)
Adds 124, 72.1, 46.8
Card types
Adds SD UHS-I
Codecs
Adds MP4, AVCHD
Subject recognition
Adds Face, Eye
Weight
450 g vs 743 g — lower is better
AF frame coverage
100 % vs 94 % — higher is better
Reasons to choose
Alpha 1 II
Dimensions (W×H×D mm)
Adds 136.1, 96.9, 82.9
Card types
Adds CFexpress Type A, SD UHS-II
AF points / zones
759 vs 49 — higher is better
RAW buffer depth
200 frames vs 30 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
4K max frame rate
120 fps vs 30 fps — higher is better
EVF refresh rate
240 Hz vs 60 Hz — higher is better
EVF resolution
9,437,184 vs 2,760,000 — higher is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Lumix GX9
Pros
- ✓Compact rangefinder body
- ✓20MP MFT sensor
- ✓Tilting EVF
- ✓IBIS
Cons
- –No weather sealing
- –Single card slot
- –Small grip
Alpha 1 II
Pros
- ✓50MP stacked sensor
- ✓30fps blackout-free burst
- ✓8K 30p video
- ✓Best Sony AF
Cons
- –Very expensive
- –Complex menus
- –Large files
Decided which one is right for you?
Compare live prices for the Lumix GX9 and Alpha 1 II at major authorized retailers.
Panasonic Lumix GX9
Sony Alpha 1 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, Lumix GX9 or Alpha 1 II?
Alpha 1 II scores 9.0/10 versus 1.0/10 for Lumix GX9 — 50.1MP — massive detail for large prints.
What's the resolution difference between the Lumix GX9 and Alpha 1 II?
Lumix GX9 is 20.3 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.
Do the Lumix GX9 and Alpha 1 II have in-body image stabilization?
Lumix GX9 has 4-stop in-body image stabilization, while alpha 1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the Lumix GX9 or the Alpha 1 II?
Lumix GX9 reaches 9 fps electronic. Alpha 1 II reaches 30 fps electronic.
What's the weight difference between the Lumix GX9 and Alpha 1 II?
Lumix GX9 weighs 450 g and Alpha 1 II weighs 743 g, so the Lumix GX9 is 293 g lighter.
Do the Lumix GX9 and Alpha 1 II record 4K video?
Lumix GX9: 4K up to 30p. Alpha 1 II: 8K (max), 4K up to 120p.
Are the Lumix GX9 and Alpha 1 II weather sealed?
Lumix GX9: No. Alpha 1 II: Yes.
Which has better battery life?
Rated battery life is 260 shots (CIPA) for the Lumix GX9 and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.
How much does each cost?
Lumix GX9 launched at $999 and Alpha 1 II at $6,499. The Lumix GX9 is $5,500 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Panasonic and Sony press materials.