Sony
Alpha 7S III
12MP low-light video specialist with 4K 120p, 16-bit RAW HDMI, and excellent autofocus.
$3,499
Launch priceReleased Sep 2020
Sony
PXW-Z300
Flagship 3-CMOS XDCAM with 1/2-inch Exmor R sensors, 17x f/1.9 zoom, AI subject AF, 4K60p, flexible LCD arm, and content authentication.
$8,298
Launch priceReleased Oct 2025
PXW-Z300 is 5.1 years newer.
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Wins
Alpha 7S III
Wins
PXW-Z300
6 categories tied
Which would you choose?
TL;DR — Key differences
- BPXW-Z300 has higher Burst (electronic) (30 fps vs 10 fps)
- AAlpha 7S III has higher ISO max (native) (102,400 vs 51,200)
- BPXW-Z300 has higher RAW buffer depth (200 frames vs 120 frames)
- AAlpha 7S III has higher EVF resolution (9,437,184 vs 5,760,000)
- AAlpha 7S III has higher Resolution (12.1 MP vs 8.3 MP)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareAlpha 7S III
129 × 97 × 81 mm
699 g (1.54 lb / 24.66 oz)
Credit card
85.6 × 54 mm
for scale
PXW-Z300
134 × 91 × 72 mm
580 g (1.28 lb / 20.46 oz)
Alpha 7S III is 5mm narrower than PXW-Z300 but it is also 6mm taller and 9mm thicker.
Alpha 7S III is 119 g heavier than PXW-Z300.
Depth (front-to-back): 81mm Alpha 7S III · 72mm PXW-Z300
Sensor size, to scale
Alpha 7S III
35.6 × 23.8 mm · Full Frame
847 mm² area
PXW-Z300
17.3 × 13 mm · Micro Four Thirds
225 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Alpha 7S III
✓ more lensesSony E
350+
native lenses available
PXW-Z300: mount data unavailable
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
Alpha 7S III
AF low-light limit
-6 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 128.9, 96.9, 80.8
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
ISO max (native)
102,400 vs 51,200 — higher is better
Card types
Adds CFexpress Type A
EVF resolution
9,437,184 vs 5,760,000 — higher is better
Resolution
12.1 MP vs 8.3 MP — higher is better
ISO min (native)
80 vs 100 — lower is better
Reasons to choose
PXW-Z300
Dimensions (W×H×D mm)
Adds 134, 91, 72
Burst (electronic)
30 fps vs 10 fps — higher is better
Subject recognition
Adds Bird, Vehicle
Pre-Capture / Pre-Release
Only PXW-Z300 supports it
Card types
Adds CFexpress Type B
RAW buffer depth
200 frames vs 120 frames — higher is better
Codecs
Adds ProRes
IBIS effectiveness
8 stops vs 5.5 stops — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓AF points / zones — Both 759
- ✓AF frame coverage — Both 94 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 120 fps
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Alpha 7S III
Pros
- ✓Best-in-class low light
- ✓4K 120p
- ✓Full-size HDMI
- ✓Strong IBIS
Cons
- –12MP stills limit
- –Older generation now
- –No 8K
PXW-Z300
Pros
- ✓3× 1/2-inch 4K Exmor R 3CMOS
- ✓17x f/1.9 constant aperture zoom
- ✓AI subject recognition + auto framing
- ✓4K60p XAVC Intra/Long + MPEG HD422
- ✓Electronic variable ND + 12G-SDI
Cons
- –Premium flagship pricing
- –3CMOS not single large sensor
- –Heavy at 2.6 kg body-only
- –New platform learning curve
Decided which one is right for you?
Compare live prices for the Alpha 7S III and PXW-Z300 at major authorized retailers.
Sony Alpha 7S III
Sony PXW-Z300
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Alpha 7S III or PXW-Z300?
PXW-Z300 scores 10.0/10 versus 5.5/10 for Alpha 7S III — 30fps burst — pro-level action capture.
What's the resolution difference between the Alpha 7S III and PXW-Z300?
Alpha 7S III is 12.1 MP and PXW-Z300 is 8.3 MP, so the Alpha 7S III captures more detail for cropping and large prints.
Do the Alpha 7S III and PXW-Z300 have in-body image stabilization?
Alpha 7S III has 5.5-stop in-body image stabilization, while PXW-Z300 has 8-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 7S III or the PXW-Z300?
Alpha 7S III reaches 10 fps electronic. PXW-Z300 reaches 30 fps electronic.
What's the weight difference between the Alpha 7S III and PXW-Z300?
Alpha 7S III weighs 699 g and PXW-Z300 weighs 580 g, so the PXW-Z300 is 119 g lighter.
Do the Alpha 7S III and PXW-Z300 record 4K video?
Alpha 7S III: 4K up to 120p. PXW-Z300: 8K / 6K (max), 4K up to 120p.
Are the Alpha 7S III and PXW-Z300 weather sealed?
Alpha 7S III: Yes. PXW-Z300: Yes.
Which has better battery life?
Rated battery life is 600 shots (CIPA) for the Alpha 7S III and 520 shots for the PXW-Z300, giving the Alpha 7S III the edge.
How much does each cost?
Alpha 7S III launched at $3,499 and PXW-Z300 at $8,298. The Alpha 7S III is $4,799 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 7S III vs PXW-Z300 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.