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Sony

Alpha 1

Original 50MP stacked flagship for sports and wildlife pros.

$6,499

Released Jan 2021

vs
Alpha 1 II

Sony

Alpha 1 II

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

$6,499

Released Nov 2024

Alpha 1 II is 3.8 years newer.

Wins

2categories

Alpha 1

Video & HybridLandscape

Wins

1categories

Alpha 1 II

Video & HybridWildlife

15 categories tied

TL;DR — Key differences

Alpha 1 wins 2 categories·Alpha 1 II wins 1 categories
  • BAlpha 1 II has higher IBIS effectiveness (8.5 stops vs 5.5 stops)
  • AAlpha 1 has higher Battery life (CIPA) (530 shots vs 520 shots)
  • AAlpha 1 has lower Weight (737 g vs 743 g)

Key specs at a glance

Alpha 1Alpha 1 II
Resolution50.1 MP50.1 MP
SensorFull FrameFull Frame
ISO max32,00032,000
Burst30 fps30 fps
4K120 fps120 fps
IBIS5.5-stop8.5-stop
Weight737 g743 g
Battery530 shots520 shots

Size and weight, to scale

Alpha 1

129 × 97 × 81 mm

737 g (1.62 lb / 26.00 oz)

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 oz)

Alpha 1 is 7mm narrower and 2mm thinner than Alpha 1 II.

Alpha 1 is 6 g lighter than Alpha 1 II.

Depth (front-to-back): 81mm Alpha 1 · 83mm Alpha 1 II

Sensor size, to scale

Alpha 1

35.9 × 24 mm · Full Frame

862 mm² area

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

Alpha 1

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

Alpha 1 II

✓ 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 1Alpha 1 II
Portrait
8.5Excellent
8.5Excellent
Sports & Action
6.5Good
9.0Excellent✓ wins
Video & Hybrid
9.5Excellent
9.5Excellent
Landscape
9.0Excellent
9.0Excellent
Travel
6.0Good
6.0Good
Wildlife
7.5Good
9.5Excellent✓ wins
Vlogging
5.5Fair
5.5Fair

Why pick one over the other

Reasons to choose

Alpha 1

  • Dimensions (W×H×D mm)

    Adds 128.9, 80.8

  • Battery life (CIPA)

    530 shots vs 520 shots — higher is better

  • Weight

    737 g vs 743 g — lower is better

Reasons to choose

Alpha 1 II

  • Dimensions (W×H×D mm)

    Adds 136.1, 82.9

  • Subject recognition

    Adds Insect, Car/Train, Airplane

  • Pre-Capture / Pre-Release

    Only Alpha 1 II supports it

  • IBIS effectiveness

    8.5 stops vs 5.5 stops — higher is better

Both cameras share

  • ResolutionBoth 50.1 MP
  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • ISO max (native)Both 32,000
  • AF points / zonesBoth 759
  • AF frame coverageBoth 94 %

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Alpha 1

Pros

  • 50MP stacked
  • 30fps burst
  • 8K video
  • Pro AF

Cons

  • Superseded by A1 II
  • Very expensive
  • Large files

Alpha 1 II

Pros

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

Cons

  • Very expensive
  • Complex menus
  • Large files

Full specifications

= category winner

Alpha 1
Alpha 1 II
Resolution
50.1 MP
50.1 MP
Sensor type
Full Frame Stacked Exmor RS CMOS
Full Frame Stacked Exmor RS CMOS
Sensor size
35.9 × 24.0 mm
35.9 × 24.0 mm
AA filter
Yes
Yes
Alpha 1
Alpha 1 II
AF system
Fast Hybrid AF (phase-detection / contrast-detection)
Fast Hybrid AF (phase-detection / contrast-detection)
AF points / zones
759
759
AF frame coverage
94 %
94 %
AF low-light limit
-4 EV
-4 EV
Eye AF
Yes
Yes
Animal / bird AF
Yes
Yes
Subject recognition
Human, Animal, Bird
Human, Animal, Bird, Insect, Car/Train, Airplane
Alpha 1
Alpha 1 II
Burst (mechanical)
10 fps
10 fps
Burst (electronic)
30 fps
30 fps
Pre-Capture / Pre-Release
No
Yes
RAW buffer depth
200 frames
200 frames
Alpha 1
Alpha 1 II
Max resolution
8K
8K
4K max frame rate
120 fps
120 fps
Max video bit rate
150 Mbps
150 Mbps
Internal RAW video
Yes
Yes
Log profile
S-Log3 / HLG / S-Cinetone
S-Log3 / HLG / S-Cinetone
Codecs
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
Alpha 1
Alpha 1 II
Weight
737 g−6 g less
743 g
Dimensions (W×H×D mm)
128.9 × 96.9 × 80.8 mm
136.1 × 96.9 × 82.9 mm
Weather sealing
Yes
Yes

Frequently asked

Quick answers generated from verified specs.

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

Alpha 1 II scores 9.0/10 versus 6.5/10 for Alpha 1 — 30fps burst — pro-level action capture.

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

Both cameras share the same 50.1 MP resolution.

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

Alpha 1 has 5.5-stop in-body image stabilization, while alpha 1 II has 8.5-stop in-body image stabilization.

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

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

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

Alpha 1 weighs 737 g and Alpha 1 II weighs 743 g, so the Alpha 1 is 6 g lighter.

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

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

Are the Alpha 1 and Alpha 1 II weather sealed?

Alpha 1: Yes. Alpha 1 II: Yes.

Which has better battery life?

Rated battery life is 530 shots (CIPA) for the Alpha 1 and 520 shots for the Alpha 1 II, giving the Alpha 1 the edge.

How much does each cost?

Both launched at $6,499.

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

Product images courtesy of Sony press materials.