Cameraegg Compare logoCameraegg

Sony

Alpha 7S III

12MP low-light video specialist with 4K 120p, 16-bit RAW HDMI, and excellent autofocus.

$3,499

Launch price

Released Sep 2020

vs
RX10 V

Sony

RX10 V

Fifth-gen 1-inch bridge with ZEISS 24–600mm f/2.4–4 zoom, BIONZ XR + AI AF, 30fps blackout-free bursts, 4K 120p video, and NP-FZ100 battery — successor to RX10 IV.

$2,299

Launch price

Released Aug 2026

RX10 V is 5.9 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

11categories

Alpha 7S III

Video & HybridPortrait

Wins

3categories

RX10 V

Sports & ActionWildlife

4 categories tied

Which would you choose?

TL;DR — Key differences

Alpha 7S III wins 4 categories·RX10 V wins 1 categories
  • AAlpha 7S III has higher IBIS effectiveness (5.5 stops vs 0 stops)
  • AAlpha 7S III has higher ISO max (native) (102,400 vs 12,800)
  • BRX10 V has higher Burst (electronic) (30 fps vs 10 fps)
  • 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 3,686,400)

Key specs at a glance

Alpha 7S IIIRX10 V
Resolution12.1 MP20.1 MP
SensorFull Frame13.2 × 8.8 mm
ISO max102,40012,800
Burst10 fps30 fps
4K120 fps120 fps
IBIS5.5-stopNo
Weight699 g1111 g
Battery600 shots630 shots

Size and weight, to scale

Alpha 7S III

129 × 97 × 81 mm

699 g (1.54 lb / 24.66 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

RX10 V front view

RX10 V

136 × 95 × 151 mm

1111 g (2.45 lb / 39.19 oz)

Alpha 7S III is 8mm narrower and 71mm thinner than RX10 V but it is also 2mm taller.

Alpha 7S III is 412 g lighter than RX10 V.

Depth (front-to-back): 81mm Alpha 7S III · 151mm RX10 V

Back view, to scale

Width × Height — same proportions as the front of the body.

Alpha 7S III

129 × 97 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

RX10 V back view

RX10 V

136 × 95 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

Alpha 7S III

129 × 81 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

RX10 V top view

RX10 V

136 × 151 mm

Sensor size, to scale

Alpha 7S III

35.6 × 23.8 mm · Full Frame

847 mm² area

RX10 V

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 7S III

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

RX10 V: 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 7S IIIRX10 V
Portrait
6.5Good✓ wins
3.0Limited
Sports & Action
5.5Fair
10.0Excellent✓ wins
Video & Hybrid
8.0Excellent✓ wins
5.5Fair
Landscape
5.5Fair✓ wins
1.5Limited
Travel
6.5Good✓ wins
4.5Fair
Wildlife
5.5Fair
8.0Excellent✓ wins
Vlogging
5.5Fair✓ wins
3.5Limited

Why pick one over the other

Reasons to choose

Alpha 7S III

  • AF low-light limit

    -6 EV vs -3 EV — lower is better

  • IBIS effectiveness

    5.5 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 128.9, 96.9, 80.8

  • ISO max (native)

    102,400 vs 12,800 — higher is better

  • Max video bit rate

    600 Mbps vs 200 Mbps — higher is better

  • EVF resolution

    9,437,184 vs 3,686,400 — higher is better

  • Internal RAW video

    Only Alpha 7S III supports it

  • In-body stabilization (IBIS)

    Only Alpha 7S III supports it

Reasons to choose

RX10 V

  • Dimensions (W×H×D mm)

    Adds 136.4, 94.5, 151.3

  • Subject recognition

    Adds Bird, Insect, Car/Train…

  • Burst (electronic)

    30 fps vs 10 fps — higher is better

  • Card types

    Adds SD UHS-I

  • Resolution

    20.1 MP vs 12.1 MP — higher is better

  • Battery life (CIPA)

    630 shots vs 600 shots — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Burst (mechanical)Both 10 fps
  • RAW buffer depthBoth 120 frames
  • 4K max frame rateBoth 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

RX10 V

Pros

  • 24–600mm f/2.4–4 ZEISS 25x zoom
  • 20.1MP stacked Exmor RS + BIONZ XR / AI AF
  • 30fps blackout-free with AF/AE tracking
  • 4K 60p / 4K 120p + S-Cinetone / S-Log3
  • NP-FZ100 (~630 shots) + USB-C PD

Cons

  • 1-inch sensor vs interchangeable systems
  • Large bridge body (~1111 g)
  • Single SD UHS-II slot
  • Premium $2,299 MSRP

Decided which one is right for you?

Compare live prices for the Alpha 7S III and RX10 V at major authorized retailers.

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

Alpha 7S III
RX10 V
Resolution
12.1 MP
20.1 MP+66%
Sensor type
Full Frame Exmor R CMOS
1.0-type Exmor RS stacked CMOS
Sensor size
35.6 × 23.8 mm
13.2 × 8.8 mm
AA filter
Yes
Yes
Alpha 7S III
RX10 V
Aperture
f/2.4-4.0
Focal length (35mm equiv.)
24-600 mm
Alpha 7S III
RX10 V
Processor
BIONZ XR
BIONZ XR + AI processing unit
Alpha 7S III
RX10 V
ISO min (native)
80−20 less
100
ISO max (native)
102,400+3 stops
12,800
ISO max (expanded)
409,600
12,800
Alpha 7S III
RX10 V
Shutter type
Mechanical + Electronic
Mechanical + electronic
Max mechanical speed
1/8000 sec
1/2000 sec
Max electronic speed
1/16000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, Alpha 7S III or RX10 V?

RX10 V 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 RX10 V?

Alpha 7S III is 12.1 MP and RX10 V is 20.1 MP, so the RX10 V captures more detail for cropping and large prints.

Do the Alpha 7S III and RX10 V have in-body image stabilization?

Alpha 7S III has 5.5-stop in-body image stabilization, while RX10 V uses Optical SteadyShot + Active Mode (electronic + optical for video) (electronic).

Which shoots faster bursts — the Alpha 7S III or the RX10 V?

Alpha 7S III reaches 10 fps electronic. RX10 V reaches 30 fps electronic.

What's the weight difference between the Alpha 7S III and RX10 V?

Alpha 7S III weighs 699 g and RX10 V weighs 1111 g, so the Alpha 7S III is 412 g lighter.

Do the Alpha 7S III and RX10 V record 4K video?

Alpha 7S III: 4K up to 120p. RX10 V: 4K up to 120p.

Are the Alpha 7S III and RX10 V weather sealed?

Alpha 7S III: Yes. RX10 V: Yes.

Which has better battery life?

Rated battery life is 600 shots (CIPA) for the Alpha 7S III and 630 shots for the RX10 V, giving the RX10 V the edge.

How much does each cost?

Alpha 7S III launched at $3,499 and RX10 V at $2,299. The RX10 V is $1,200 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way Alpha 7S III vs RX10 V vs X comparison.

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

Product images courtesy of Sony press materials.