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Sony

Alpha 9 III

Global shutter sports flagship with 120fps and zero rolling shutter for pro action.

$5,999

Released Jan 2024

vs

Sony

RX100 VII

Premium 1-inch pocket camera with 24–200mm zoom and real-time tracking AF.

$1,299

Released Aug 2019

Alpha 9 III is 4.4 years newer.

Wins

13categories

Alpha 9 III

WildlifeSports & Action

Wins

3categories

RX100 VII

1 categories tied

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TL;DR — Key differences

Alpha 9 III wins 4 categories·RX100 VII wins 1 categories
  • BRX100 VII has higher Burst (mechanical) (20 fps vs 0 fps)
  • AAlpha 9 III has higher IBIS effectiveness (8 stops vs 0 stops)
  • AAlpha 9 III has higher Burst (electronic) (120 fps vs 20 fps)
  • AAlpha 9 III has higher 4K max frame rate (120 fps vs 30 fps)
  • AAlpha 9 III has higher Max video bit rate (600 Mbps vs 150 Mbps)

Key specs at a glance

Alpha 9 IIIRX100 VII
Resolution24.6 MP20.1 MP
SensorFull Frame13.2 × 8.8 mm
ISO max25,60012,800
Burst120 fps20 fps
4K120 fps30 fps
IBIS8-stopNo
Weight703 g302 g
Battery400 shots260 shots

Size and weight, to scale

Alpha 9 III

136 × 97 × 83 mm

703 g (1.55 lb / 24.80 oz)

RX100 VII

102 × 58 × 43 mm

302 g (0.67 lb / 10.65 oz)

Alpha 9 III is 35mm wider, 39mm taller, and 40mm thicker than RX100 VII.

Alpha 9 III is 401 g heavier than RX100 VII.

Depth (front-to-back): 83mm Alpha 9 III · 43mm RX100 VII

Sensor size, to scale

Alpha 9 III

35.6 × 23.8 mm · Full Frame

847 mm² area

RX100 VII

13.2 × 8.8 mm · 1″

116 mm² area

7.3× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

Alpha 9 III

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

RX100 VII: 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

Use caseAlpha 9 IIIRX100 VII
Portrait
7.5Good✓ wins
3.0Limited
Sports & Action
9.0Excellent✓ wins
3.5Limited
Video & Hybrid
8.0Excellent✓ wins
3.5Limited
Landscape
7.0Good✓ wins
0.0Limited
Travel
7.0Good✓ wins
3.5Limited
Wildlife
9.5Excellent✓ wins
4.0Fair
Vlogging
5.5Fair✓ wins
4.5Fair

Why pick one over the other

Reasons to choose

Alpha 9 III

  • AF low-light limit

    -5 EV vs -4 EV — lower is better

  • IBIS effectiveness

    8 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SD UHS-II

  • Burst (electronic)

    120 fps vs 20 fps — higher is better

  • 4K max frame rate

    120 fps vs 30 fps — higher is better

  • Max video bit rate

    600 Mbps vs 150 Mbps — higher is better

  • EVF resolution

    9,437,184 vs 2,359,296 — higher is better

Reasons to choose

RX100 VII

  • Burst (mechanical)

    20 fps vs 0 fps — higher is better

  • Dimensions (W×H×D mm)

    Adds 101.6, 58.1, 42.8

  • Card types

    Adds SD UHS-I, Memory Stick Duo

  • ISO min (native)

    100 vs 250 — lower is better

  • Weight

    302 g vs 703 g — lower is better

  • Codecs

    Adds AVCHD

Both cameras share

  • AA filterBoth support aa filter
  • AF frame coverageBoth 94 %
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Alpha 9 III

Pros

  • Global shutter 120fps
  • Zero rolling shutter
  • Pro sports AF
  • Pre-capture buffer

Cons

  • 24.6MP only
  • Premium price
  • Battery drain at max speed

RX100 VII

Pros

  • Pocketable zoom range
  • Real-time Eye AF
  • Great travel camera

Cons

  • 1-inch sensor
  • Expensive
  • Small controls

Full specifications

= category winner

Alpha 9 III
RX100 VII
Resolution
24.6 MP+22%
20.1 MP
Sensor type
Full Frame Global Shutter Exmor RS CMOS
1.0-type Exmor RS CMOS
Sensor size
35.6 × 23.8 mm
13.2 × 8.8 mm
AA filter
Yes
Yes
Alpha 9 III
RX100 VII
AF system
Fast Hybrid AF (phase-detection / contrast-detection)
Fast Hybrid AF (phase-detection / contrast-detection)
AF points / zones
7592.1× more
357
AF frame coverage
94 %
94 %
AF low-light limit
-5 EV
-4 EV
Eye AF
Yes
Yes
Animal / bird AF
Yes
Yes
Subject recognition
Human, Animal, Bird, Insect, Car/Train, Airplane
Human, Animal
Alpha 9 III
RX100 VII
Burst (mechanical)
0 fps
20 fps
Burst (electronic)
120 fps6× more
20 fps
Pre-Capture / Pre-Release
Yes
No
RAW buffer depth
200 frames3.3× more
60 frames
Alpha 9 III
RX100 VII
Max resolution
4K UHD
4K UHD
4K max frame rate
120 fps4× more
30 fps
Max video bit rate
600 Mbps4× more
150 Mbps
Internal RAW video
Yes
No
Log profile
S-Log3 / HLG / S-Cinetone
S-Log2 / HLG
Codecs
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
XAVC S, AVCHD, H.264
Alpha 9 III
RX100 VII
Weight
703 g
302 g−401 g less
Dimensions (W×H×D mm)
136.1 × 96.9 × 82.9 mm
101.6 × 58.1 × 42.8 mm
Weather sealing
Yes
No

Frequently asked

Quick answers generated from verified specs.

Which is better for landscape, Alpha 9 III or RX100 VII?

Alpha 9 III scores 7.0/10 versus 0.0/10 for RX100 VII — Full-frame sensor — wider dynamic range.

What's the resolution difference between the Alpha 9 III and RX100 VII?

Alpha 9 III is 24.6 MP and RX100 VII is 20.1 MP, so the Alpha 9 III captures more detail for cropping and large prints.

Do the Alpha 9 III and RX100 VII have in-body image stabilization?

Alpha 9 III has 8-stop in-body image stabilization, while rX100 VII does not have IBIS.

Which shoots faster bursts — the Alpha 9 III or the RX100 VII?

Alpha 9 III reaches 120 fps electronic. RX100 VII reaches 20 fps electronic.

What's the weight difference between the Alpha 9 III and RX100 VII?

Alpha 9 III weighs 703 g and RX100 VII weighs 302 g, so the RX100 VII is 401 g lighter.

Do the Alpha 9 III and RX100 VII record 4K video?

Alpha 9 III: 4K up to 120p. RX100 VII: 4K up to 30p.

Are the Alpha 9 III and RX100 VII weather sealed?

Alpha 9 III: Yes. RX100 VII: No.

Which has better battery life?

Rated battery life is 400 shots (CIPA) for the Alpha 9 III and 260 shots for the RX100 VII, giving the Alpha 9 III the edge.

How much does each cost?

Alpha 9 III launched at $5,999 and RX100 VII at $1,299. The RX100 VII is $4,700 less.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.