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Alpha 1 II

Sony

Alpha 1 II

50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.

$6,499

Launch price

Released Nov 2024

vs

Sony

Alpha 6600

APS-C with IBIS and huge NP-FZ100 battery in a compact body.

$1,399

Launch price

Released Oct 2019

Alpha 1 II is 5.1 years newer.

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Wins

11categories

Alpha 1 II

Sports & ActionVideo & Hybrid

Wins

3categories

Alpha 6600

TravelPortrait

4 categories tied

Which would you choose?

TL;DR — Key differences

Alpha 1 II wins 5 categories·Alpha 6600 wins 0 categories
  • AAlpha 1 II has higher 4K max frame rate (120 fps vs 30 fps)
  • AAlpha 1 II has higher EVF resolution (9,437,184 vs 2,359,296)
  • AAlpha 1 II has higher RAW buffer depth (200 frames vs 60 frames)
  • AAlpha 1 II has higher Burst (electronic) (30 fps vs 11 fps)
  • AAlpha 1 II has higher Resolution (50.1 MP vs 24.2 MP)

Key specs at a glance

Alpha 1 IIAlpha 6600
Resolution50.1 MP24.2 MP
SensorFull FrameAPS-C
ISO max32,00032,000
Burst30 fps11 fps
4K120 fps30 fps
IBIS8.5-stop5-stop
Weight743 g503 g
Battery520 shots810 shots

Size and weight, to scale

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 oz)

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

Credit card

85.6 × 54 mm

for scale

Alpha 6600

120 × 67 × 69 mm

503 g (1.11 lb / 17.74 oz)

Alpha 1 II is 16mm wider, 30mm taller, and 14mm thicker than Alpha 6600.

Alpha 1 II is 240 g heavier than Alpha 6600.

Depth (front-to-back): 83mm Alpha 1 II · 69mm Alpha 6600

Sensor size, to scale

Alpha 1 II

35.9 × 24 mm · Full Frame

862 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

Alpha 1 II

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

Alpha 6600

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

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 1 IIAlpha 6600
Portrait
8.5Excellent✓ wins
6.5Good
Sports & Action
10.0Excellent✓ wins
4.0Fair
Video & Hybrid
9.5Excellent✓ wins
5.0Fair
Landscape
9.0Excellent✓ wins
4.0Fair
Travel
6.0Good
8.5Excellent✓ wins
Wildlife
9.5Excellent✓ wins
5.5Fair
Vlogging
5.5Fair
6.0Good✓ wins

Why pick one over the other

Reasons to choose

Alpha 1 II

  • AF low-light limit

    -4 EV vs -2 EV — lower is better

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SD UHS-II

  • 4K max frame rate

    120 fps vs 30 fps — higher is better

  • EVF resolution

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

  • RAW buffer depth

    200 frames vs 60 frames — higher is better

  • Subject recognition

    Adds Bird, Insect, Car/Train…

  • Burst (electronic)

    30 fps vs 11 fps — higher is better

Reasons to choose

Alpha 6600

  • Dimensions (W×H×D mm)

    Adds 120, 66.9, 69.3

  • Card types

    Adds SD UHS-I

  • Battery life (CIPA)

    810 shots vs 520 shots — higher is better

  • Codecs

    Adds AVCHD

  • Weight

    503 g vs 743 g — lower is better

  • Burst (mechanical)

    11 fps vs 10 fps — higher is better

Both cameras share

  • ISO min (native)Both 100
  • ISO max (native)Both 32,000
  • AF frame coverageBoth 94 %
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Max video bit rateBoth 150 Mbps

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Alpha 1 II

Pros

  • 50MP stacked sensor
  • 30fps blackout-free burst
  • 8K 30p video
  • Best Sony AF

Cons

  • Very expensive
  • Complex menus
  • 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 Alpha 1 II and Alpha 6600 at major authorized retailers.

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Full specifications

= category winner

Alpha 1 II
Alpha 6600
Resolution
50.1 MP2.1× more
24.2 MP
Sensor type
Full Frame Stacked Exmor RS CMOS
APS-C Exmor CMOS
Sensor size
35.9 × 24.0 mm
23.5 × 15.6 mm
AA filter
Yes
No
Alpha 1 II
Alpha 6600
Processor
BIONZ XR + AI processing unit
BIONZ X
Alpha 1 II
Alpha 6600
ISO min (native)
100
100
ISO max (native)
32,000
32,000
ISO max (expanded)
102,400
102,400
Alpha 1 II
Alpha 6600
Shutter type
Mechanical + Electronic
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/32000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, Alpha 1 II or Alpha 6600?

Alpha 1 II scores 10.0/10 versus 4.0/10 for Alpha 6600 — 30fps burst — pro-level action capture.

What's the resolution difference between the Alpha 1 II and Alpha 6600?

Alpha 1 II is 50.1 MP and Alpha 6600 is 24.2 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the Alpha 1 II and Alpha 6600 have in-body image stabilization?

Alpha 1 II has 8.5-stop in-body image stabilization, while Alpha 6600 has 5-stop in-body image stabilization.

Which shoots faster bursts — the Alpha 1 II or the Alpha 6600?

Alpha 1 II reaches 30 fps electronic. Alpha 6600 reaches 11 fps electronic.

What's the weight difference between the Alpha 1 II and Alpha 6600?

Alpha 1 II weighs 743 g and Alpha 6600 weighs 503 g, so the Alpha 6600 is 240 g lighter.

Do the Alpha 1 II and Alpha 6600 record 4K video?

Alpha 1 II: 8K (max), 4K up to 120p. Alpha 6600: 4K up to 30p.

Are the Alpha 1 II and Alpha 6600 weather sealed?

Alpha 1 II: Yes. Alpha 6600: Yes.

Which has better battery life?

Rated battery life is 520 shots (CIPA) for the Alpha 1 II and 810 shots for the Alpha 6600, giving the Alpha 6600 the edge.

How much does each cost?

Alpha 1 II launched at $6,499 and Alpha 6600 at $1,399. The Alpha 6600 is $5,100 less.

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

Add any camera to get a three-way Alpha 1 II vs Alpha 6600 vs X comparison.

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

Product images courtesy of Sony press materials.