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
HXR-NX800
AI-powered NXCAM with 1-inch Exmor RS sensor, 20x zoom, 4K60/120p HLG, variable ND, RTMP/SRT streaming, and Cinema Line color match.
$3,299
Launch priceReleased Sep 2024
HXR-NX800 is 4 years newer.
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Wins
Alpha 7S III
Wins
HXR-NX800
5 categories tied
Which would you choose?
TL;DR — Key differences
- AAlpha 7S III has higher ISO max (native) (102,400 vs 25,600)
- AAlpha 7S III has higher Max video bit rate (600 Mbps vs 200 Mbps)
- AAlpha 7S III has higher EVF resolution (9,437,184 vs 3,690,000)
- BHXR-NX800 has higher Burst (electronic) (20 fps vs 10 fps)
- AAlpha 7S III has higher 4K max frame rate (120 fps vs 60 fps)
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
HXR-NX800
134 × 91 × 72 mm
580 g (1.28 lb / 20.46 oz)
Alpha 7S III is 5mm narrower than HXR-NX800 but it is also 6mm taller and 9mm thicker.
Alpha 7S III is 119 g heavier than HXR-NX800.
Depth (front-to-back): 81mm Alpha 7S III · 72mm HXR-NX800
Sensor size, to scale
Alpha 7S III
35.6 × 23.8 mm · Full Frame
847 mm² area
HXR-NX800
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
HXR-NX800: 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
ISO max (native)
102,400 vs 25,600 — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
EVF resolution
9,437,184 vs 3,690,000 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
4K max frame rate
120 fps vs 60 fps — higher is better
Card types
Adds CFexpress Type A
Reasons to choose
HXR-NX800
Dimensions (W×H×D mm)
Adds 134, 91, 72
Subject recognition
Adds Bird, Vehicle
Burst (electronic)
20 fps vs 10 fps — higher is better
Pre-Capture / Pre-Release
Only HXR-NX800 supports it
Codecs
Adds ProRes
IBIS effectiveness
7 stops vs 5.5 stops — higher is better
Weight
580 g vs 699 g — lower is better
Resolution
14 MP vs 12.1 MP — 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
- ✓RAW buffer depth — Both 120 frames
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
HXR-NX800
Pros
- ✓AI subject recognition AF + auto framing
- ✓4K up to 60p / 120p slow motion
- ✓20x 24–480mm f/2.8–4.5 zoom
- ✓Variable electronic ND filter
- ✓2.4/5 GHz Wi-Fi + RTMP/SRT streaming
Cons
- –No SDI (HDMI only on NX800)
- –Heavier than palm-cam Z90
- –Premium over FDR-AX700
- –Requires learning AI AF settings
Decided which one is right for you?
Compare live prices for the Alpha 7S III and HXR-NX800 at major authorized retailers.
Sony Alpha 7S III
Sony HXR-NX800
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, Alpha 7S III or HXR-NX800?
HXR-NX800 scores 9.0/10 versus 5.5/10 for Alpha 7S III — 20fps burst captures fleeting moments.
What's the resolution difference between the Alpha 7S III and HXR-NX800?
Alpha 7S III is 12.1 MP and HXR-NX800 is 14 MP, so the HXR-NX800 captures more detail for cropping and large prints.
Do the Alpha 7S III and HXR-NX800 have in-body image stabilization?
Alpha 7S III has 5.5-stop in-body image stabilization, while HXR-NX800 has 7-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 7S III or the HXR-NX800?
Alpha 7S III reaches 10 fps electronic. HXR-NX800 reaches 20 fps electronic.
What's the weight difference between the Alpha 7S III and HXR-NX800?
Alpha 7S III weighs 699 g and HXR-NX800 weighs 580 g, so the HXR-NX800 is 119 g lighter.
Do the Alpha 7S III and HXR-NX800 record 4K video?
Alpha 7S III: 4K up to 120p. HXR-NX800: 4K up to 60p.
Are the Alpha 7S III and HXR-NX800 weather sealed?
Alpha 7S III: Yes. HXR-NX800: Yes.
Which has better battery life?
Rated battery life is 600 shots (CIPA) for the Alpha 7S III and 640 shots for the HXR-NX800, giving the HXR-NX800 the edge.
How much does each cost?
Alpha 7S III launched at $3,499 and HXR-NX800 at $3,299. The HXR-NX800 is $200 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 7S III vs HXR-NX800 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.