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Nikon

Z7 II

45MP resolution body for landscapes and studio work.

$2,999

Released Oct 2020

vs
Alpha 7 IV

Sony

Alpha 7 IV

33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.

$2,499

Released Oct 2021

Alpha 7 IV is 1 year newer.

Wins

5categories

Z7 II

LandscapePortrait

Wins

6categories

Alpha 7 IV

PortraitWildlife

4 categories tied

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TL;DR — Key differences

Z7 II wins 2 categories·Alpha 7 IV wins 3 categories
  • BAlpha 7 IV has higher ISO max (native) (51,200 vs 25,600)
  • AZ7 II has lower ISO min (native) (64 vs 100)
  • BAlpha 7 IV has higher AF points / zones (759 vs 493)
  • AZ7 II has higher Resolution (45.7 MP vs 33 MP)
  • BAlpha 7 IV has higher Battery life (CIPA) (580 shots vs 420 shots)

Key specs at a glance

Z7 IIAlpha 7 IV
Resolution45.7 MP33 MP
SensorFull FrameFull Frame
ISO max25,60051,200
Burst10 fps10 fps
4K60 fps60 fps
IBIS5-stop5.5-stop
Weight615 g658 g
Battery420 shots580 shots

Size and weight, to scale

Z7 II

134 × 101 × 70 mm

615 g (1.36 lb / 21.69 oz)

Alpha 7 IV front view

Alpha 7 IV

131 × 96 × 80 mm

658 g (1.45 lb / 23.21 oz)

Z7 II is 10mm thinner than Alpha 7 IV but it is also 3mm wider and 4mm taller.

Z7 II is 43 g lighter than Alpha 7 IV.

Depth (front-to-back): 70mm Z7 II · 80mm Alpha 7 IV

Sensor size, to scale

Z7 II

35.9 × 23.9 mm · Full Frame

858 mm² area

Alpha 7 IV

35.9 × 23.9 mm · Full Frame

858 mm² area

Lens ecosystem

Native lens selection

Z7 II

Nikon Z

90+

native lenses available

40 first-party50 third-party

Alpha 7 IV

✓ 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 caseZ7 IIAlpha 7 IV
Portrait
8.5Excellent
9.0Excellent✓ wins
Sports & Action
4.0Fair
6.0Good✓ wins
Video & Hybrid
6.0Good
7.5Good✓ wins
Landscape
9.5Excellent✓ wins
7.5Good
Travel
7.0Good
7.0Good
Wildlife
3.0Limited
8.0Excellent✓ wins
Vlogging
7.0Good
8.0Excellent✓ wins

Why pick one over the other

Reasons to choose

Z7 II

  • Subject recognition

    Adds People, Dogs, Cats

  • Codecs

    Adds H.265/HEVC, H.264/AVC

  • Dimensions (W×H×D mm)

    Adds 134, 100.5, 69.5

  • Card types

    Adds CFexpress Type B / XQD

  • ISO min (native)

    64 vs 100 — lower is better

  • Resolution

    45.7 MP vs 33 MP — higher is better

  • Weight

    615 g vs 658 g — lower is better

  • EVF magnification

    0.8 × vs 0.78 × — higher is better

Reasons to choose

Alpha 7 IV

  • 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 131.3, 96.4, 79.8

  • AA filter

    Only Alpha 7 IV supports it

  • ISO max (native)

    51,200 vs 25,600 — higher is better

  • Internal RAW video

    Only Alpha 7 IV supports it

  • Card types

    Adds CFexpress Type A

Both cameras share

  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Burst (mechanical)Both 10 fps
  • Burst (electronic)Both 10 fps
  • 4K max frame rateBoth 60 fps
  • In-body stabilizationBoth support in-body stabilization

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Z7 II

Pros

  • 45MP detail
  • Dual slots
  • IBIS

Cons

  • Slower AF than Z8
  • 4K 30p limitations
  • Superseded by Z8

Alpha 7 IV

Pros

  • 33MP — more detail for cropping and print
  • 10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
  • Full-size HDMI port
  • 759 phase-detect AF points

Cons

  • 4K 60p requires Super35 crop
  • 10fps burst lags behind R6 II at 40fps
  • Complex menu system

Decided which one is right for you?

Compare live prices for the Z7 II and Alpha 7 IV at major authorized retailers.

Full specifications

= category winner

Z7 II
Alpha 7 IV
Resolution
45.7 MP+38%
33 MP
Sensor type
Full Frame BSI-CMOS
Full Frame Exmor R CMOS
Sensor size
35.9 × 23.9 mm
35.9 × 23.9 mm
AA filter
No
Yes
Z7 II
Alpha 7 IV
AF system
Hybrid AF (phase-detect + contrast-detect)
Fast Hybrid AF (phase-detection / contrast-detection)
AF points / zones
493
759+54%
AF frame coverage
90 %
94 %+4%
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
Z7 II
Alpha 7 IV
Burst (mechanical)
10 fps
10 fps
Burst (electronic)
10 fps
10 fps
Pre-Capture / Pre-Release
No
No
RAW buffer depth
828 frames
Z7 II
Alpha 7 IV
Max resolution
4K UHD
4K UHD
4K max frame rate
60 fps
60 fps
Max video bit rate
600 Mbps
Internal RAW video
No
Yes
Log profile
N-Log / HLG
S-Log3 / HLG / S-Cinetone
Codecs
H.265/HEVC, H.264/AVC
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
Z7 II
Alpha 7 IV
Weight
615 g−43 g less
658 g
Dimensions (W×H×D mm)
134 × 100.5 × 69.5 mm
131.3 × 96.4 × 79.8 mm
Weather sealing
Yes
Yes

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, Z7 II or Alpha 7 IV?

Alpha 7 IV scores 8.0/10 versus 3.0/10 for Z7 II — Bird AF subject recognition.

What's the resolution difference between the Z7 II and Alpha 7 IV?

Z7 II is 45.7 MP and Alpha 7 IV is 33 MP, so the Z7 II captures more detail for cropping and large prints.

Do the Z7 II and Alpha 7 IV have in-body image stabilization?

Z7 II has 5-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.

Which shoots faster bursts — the Z7 II or the Alpha 7 IV?

Z7 II reaches 10 fps electronic. Alpha 7 IV reaches 10 fps electronic.

What's the weight difference between the Z7 II and Alpha 7 IV?

Z7 II weighs 615 g and Alpha 7 IV weighs 658 g, so the Z7 II is 43 g lighter.

Do the Z7 II and Alpha 7 IV record 4K video?

Z7 II: 4K up to 60p. Alpha 7 IV: 4K up to 60p.

Are the Z7 II and Alpha 7 IV weather sealed?

Z7 II: Yes. Alpha 7 IV: Yes.

Which has better battery life?

Rated battery life is 420 shots (CIPA) for the Z7 II and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.

How much does each cost?

Z7 II launched at $2,999 and Alpha 7 IV at $2,499. The Alpha 7 IV is $500 less.

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

Product images courtesy of Nikon and Sony press materials.