Nikon
Z9
Flagship stacked mirrorless with 45MP, 8K video, and no mechanical shutter.
$5,499
Launch priceReleased Oct 2021
Sony
Alpha 6600
APS-C with IBIS and huge NP-FZ100 battery in a compact body.
$1,399
Launch priceReleased Oct 2019
Z9 is 2.1 years newer.
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Wins
Z9
Wins
Alpha 6600
Which would you choose?
TL;DR — Key differences
- BAlpha 6600 has higher Burst (mechanical) (11 fps vs 0 fps)
- AZ9 has higher RAW buffer depth (1000 frames vs 60 frames)
- AZ9 has higher Burst (electronic) (120 fps vs 11 fps)
- AZ9 has higher 4K max frame rate (120 fps vs 30 fps)
- BAlpha 6600 has lower Weight (503 g vs 1160 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Z9
149 × 150 × 91 mm
1160 g (2.56 lb / 40.92 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 6600
120 × 67 × 69 mm
503 g (1.11 lb / 17.74 oz)
Z9 is 29mm wider, 83mm taller, and 21mm thicker than Alpha 6600.
Z9 is 657 g heavier than Alpha 6600.
Depth (front-to-back): 91mm Z9 · 69mm Alpha 6600
Back view, to scale
Width × Height — same proportions as the front of the body.
Z9
149 × 150 mm
Credit card
85.6 × 54 mm
Alpha 6600
120 × 67 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Z9
149 × 91 mm
Credit card
85.6 × 54 mm
Alpha 6600
120 × 69 mm
Sensor size, to scale
Z9
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 6600
23.5 × 15.6 mm · APS-C
367 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Z9
Nikon Z
90+
native lenses available
Alpha 6600
✓ 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
Z9
AF low-light limit
-8.5 EV vs -2 EV — lower is better
Subject recognition
Adds People, Birds, Dogs…
Codecs
Adds N-RAW, ProRes RAW HQ, ProRes 422 HQ…
Dimensions (W×H×D mm)
Adds 149, 149.5, 90.5
Card types
Adds CFexpress Type B / XQD, CFexpress Type B / XQD
RAW buffer depth
1000 frames vs 60 frames — higher is better
Burst (electronic)
120 fps vs 11 fps — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Reasons to choose
Alpha 6600
Subject recognition
Adds Human, Animal
Burst (mechanical)
11 fps vs 0 fps — higher is better
Codecs
Adds XAVC S, AVCHD, H.264
Dimensions (W×H×D mm)
Adds 120, 66.9, 69.3
Card types
Adds SD UHS-I
Weight
503 g vs 1160 g — lower is better
ISO max (native)
32,000 vs 25,600 — higher is better
Battery life (CIPA)
810 shots vs 740 shots — higher is better
Both cameras share
- ✓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
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Z9
Pros
- ✓45MP stacked
- ✓8K 60p internal
- ✓120fps stills
- ✓Pro build
Cons
- –Heavy body
- –Expensive
- –Large files
Alpha 6600
Pros
- ✓IBIS in APS-C
- ✓Excellent battery
- ✓Real-time tracking AF
Cons
- –Older than A6700
- –Single slot
- –No 4K 60p
Decided which one is right for you?
Compare live prices for the Z9 and Alpha 6600 at major authorized retailers.
Sony Alpha 6600
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Z9 or Alpha 6600?
Z9 scores 10.0/10 versus 4.0/10 for Alpha 6600 — 120fps burst — pro-level action capture.
What's the resolution difference between the Z9 and Alpha 6600?
Z9 is 45.7 MP and Alpha 6600 is 24.2 MP, so the Z9 captures more detail for cropping and large prints.
Do the Z9 and Alpha 6600 have in-body image stabilization?
Z9 has 6-stop in-body image stabilization, while Alpha 6600 has 5-stop in-body image stabilization.
Which shoots faster bursts — the Z9 or the Alpha 6600?
Z9 reaches 120 fps electronic. Alpha 6600 reaches 11 fps electronic.
What's the weight difference between the Z9 and Alpha 6600?
Z9 weighs 1160 g and Alpha 6600 weighs 503 g, so the Alpha 6600 is 657 g lighter.
Do the Z9 and Alpha 6600 record 4K video?
Z9: 8K UHD (max), 4K up to 120p. Alpha 6600: 4K up to 30p.
Are the Z9 and Alpha 6600 weather sealed?
Z9: Yes. Alpha 6600: Yes.
Which has better battery life?
Rated battery life is 740 shots (CIPA) for the Z9 and 810 shots for the Alpha 6600, giving the Alpha 6600 the edge.
How much does each cost?
Z9 launched at $5,499 and Alpha 6600 at $1,399. The Alpha 6600 is $4,100 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Z9 vs Alpha 6600 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Nikon and Sony press materials.