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Nikon

Z5

Entry full-frame Z with dual slots and IBIS.

$1,399

Released Jul 2020

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 4.3 years newer.

Wins

2categories

Z5

TravelPortrait

Wins

10categories

Alpha 1 II

Video & HybridWildlife

2 categories tied

TL;DR — Key differences

Z5 wins 0 categories·Alpha 1 II wins 5 categories
  • BAlpha 1 II has higher Burst (electronic) (30 fps vs 4.5 fps)
  • BAlpha 1 II has higher 4K max frame rate (120 fps vs 30 fps)
  • BAlpha 1 II has higher AF points / zones (759 vs 273)
  • BAlpha 1 II has higher EVF resolution (9,437,184 vs 3,690,000)
  • BAlpha 1 II has higher Burst (mechanical) (10 fps vs 4.5 fps)

Key specs at a glance

Z5Alpha 1 II
Resolution24.3 MP50.1 MP
SensorFull FrameFull Frame
ISO max51,20032,000
Burst4.5 fps30 fps
4K30 fps120 fps
IBIS5-stop8.5-stop
Weight590 g743 g
Battery470 shots520 shots

Size and weight, to scale

Z5

134 × 101 × 70 mm

590 g (1.30 lb / 20.81 oz)

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 oz)

Z5 is 2mm narrower and 13mm thinner than Alpha 1 II but it is also 4mm taller.

Z5 is 153 g lighter than Alpha 1 II.

Depth (front-to-back): 70mm Z5 · 83mm Alpha 1 II

Sensor size, to scale

Z5

35.9 × 23.9 mm · Full Frame

858 mm² area

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

Z5

Nikon Z

90+

native lenses available

40 first-party50 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 caseZ5Alpha 1 II
Portrait
7.5Good
8.5Excellent✓ wins
Sports & Action
2.5Limited
9.0Excellent✓ wins
Video & Hybrid
4.0Fair
9.5Excellent✓ wins
Landscape
7.0Good
9.0Excellent✓ wins
Travel
8.0Excellent✓ wins
6.0Good
Wildlife
2.5Limited
9.5Excellent✓ wins
Vlogging
6.0Good✓ wins
5.5Fair

Why pick one over the other

Reasons to choose

Z5

  • Subject recognition

    Adds People, Dogs, Cats

  • Codecs

    Adds H.264/AVC

  • Dimensions (W×H×D mm)

    Adds 134, 100.5, 69.5

  • ISO max (native)

    51,200 vs 32,000 — higher is better

  • Weight

    590 g vs 743 g — lower is better

Reasons to choose

Alpha 1 II

  • AF low-light limit

    -4 EV vs -3 EV — lower is better

  • Subject recognition

    Adds Human, Animal, Bird…

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I…

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • Burst (electronic)

    30 fps vs 4.5 fps — higher is better

  • 4K max frame rate

    120 fps vs 30 fps — higher is better

  • AF points / zones

    759 vs 273 — higher is better

  • EVF resolution

    9,437,184 vs 3,690,000 — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • In-body stabilizationBoth support in-body stabilization
  • Weather sealingBoth support weather sealing

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Z5

Pros

  • Dual slots at entry price
  • IBIS
  • Full-frame

Cons

  • Older AF
  • 4K crop
  • Slow burst

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

Z5
Alpha 1 II
Resolution
24.3 MP
50.1 MP2.1× more
Sensor type
Full Frame CMOS
Full Frame Stacked Exmor RS CMOS
Sensor size
35.9 × 23.9 mm
35.9 × 24.0 mm
AA filter
Yes
Yes
Z5
Alpha 1 II
AF system
Hybrid AF (phase-detect + contrast-detect)
Fast Hybrid AF (phase-detection / contrast-detection)
AF points / zones
273
7592.8× more
AF frame coverage
94 %
AF low-light limit
-3 EV
-4 EV
Eye AF
Yes
Yes
Animal / bird AF
Yes
Yes
Subject recognition
People, Dogs, Cats
Human, Animal, Bird, Insect, Car/Train, Airplane
Z5
Alpha 1 II
Burst (mechanical)
4.5 fps
10 fps2.2× more
Burst (electronic)
4.5 fps
30 fps6.7× more
Pre-Capture / Pre-Release
No
Yes
RAW buffer depth
200 frames
Z5
Alpha 1 II
Max resolution
4K UHD
8K
4K max frame rate
30 fps
120 fps4× more
Max video bit rate
150 Mbps
Internal RAW video
No
Yes
Log profile
S-Log3 / HLG / S-Cinetone
Codecs
H.264/AVC
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
Z5
Alpha 1 II
Weight
590 g−153 g less
743 g
Dimensions (W×H×D mm)
134 × 100.5 × 69.5 mm
136.1 × 96.9 × 82.9 mm
Weather sealing
Yes
Yes

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, Z5 or Alpha 1 II?

Alpha 1 II scores 9.5/10 versus 2.5/10 for Z5 — 30fps burst captures fleeting moments.

What's the resolution difference between the Z5 and Alpha 1 II?

Z5 is 24.3 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the Z5 and Alpha 1 II have in-body image stabilization?

Z5 has 5-stop in-body image stabilization, while alpha 1 II has 8.5-stop in-body image stabilization.

Which shoots faster bursts — the Z5 or the Alpha 1 II?

Z5 reaches 4.5 fps electronic. Alpha 1 II reaches 30 fps electronic.

What's the weight difference between the Z5 and Alpha 1 II?

Z5 weighs 590 g and Alpha 1 II weighs 743 g, so the Z5 is 153 g lighter.

Do the Z5 and Alpha 1 II record 4K video?

Z5: 4K up to 30p. Alpha 1 II: 8K (max), 4K up to 120p.

Are the Z5 and Alpha 1 II weather sealed?

Z5: Yes. Alpha 1 II: Yes.

Which has better battery life?

Rated battery life is 470 shots (CIPA) for the Z5 and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.

How much does each cost?

Z5 launched at $1,399 and Alpha 1 II at $6,499. The Z5 is $5,100 less.

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

Product images courtesy of Nikon and Sony press materials.