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Nikon

Z6

Original 24MP Z hybrid that launched the Z system.

$1,999

Released Aug 2018

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 3.2 years newer.

Wins

5categories

Z6

PortraitTravel

Wins

6categories

Alpha 7 IV

PortraitWildlife

3 categories tied

TL;DR — Key differences

Z6 wins 0 categories·Alpha 7 IV wins 5 categories
  • BAlpha 7 IV has higher AF points / zones (759 vs 273)
  • BAlpha 7 IV has higher 4K max frame rate (60 fps vs 30 fps)
  • BAlpha 7 IV has higher Card slots (2 vs 1)
  • BAlpha 7 IV has higher Battery life (CIPA) (580 shots vs 310 shots)
  • BAlpha 7 IV has higher Resolution (33 MP vs 24.5 MP)

Key specs at a glance

Z6Alpha 7 IV
Resolution24.5 MP33 MP
SensorFull FrameFull Frame
ISO max51,20051,200
Burst12 fps10 fps
4K30 fps60 fps
IBIS5-stop5.5-stop
Weight585 g658 g
Battery310 shots580 shots

Size and weight, to scale

Z6

134 × 101 × 68 mm

585 g (1.29 lb / 20.64 oz)

Alpha 7 IV front view

Alpha 7 IV

131 × 96 × 80 mm

658 g (1.45 lb / 23.21 oz)

Z6 is 12mm thinner than Alpha 7 IV but it is also 3mm wider and 4mm taller.

Z6 is 73 g lighter than Alpha 7 IV.

Depth (front-to-back): 68mm Z6 · 80mm Alpha 7 IV

Sensor size, to scale

Z6

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

Z6

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 caseZ6Alpha 7 IV
Portrait
7.5Good
9.0Excellent✓ wins
Sports & Action
3.5Limited
6.0Good✓ wins
Video & Hybrid
5.0Fair
7.5Good✓ wins
Landscape
6.0Good
7.5Good✓ wins
Travel
7.5Good✓ wins
7.0Good
Wildlife
4.0Fair
8.0Excellent✓ wins
Vlogging
6.0Good
8.0Excellent✓ wins

Why pick one over the other

Reasons to choose

Z6

  • Subject recognition

    Adds People

  • Codecs

    Adds H.264/AVC

  • Dimensions (W×H×D mm)

    Adds 134, 100.5, 67.5

  • Card types

    Adds CFexpress Type B / XQD

  • Burst (mechanical)

    12 fps vs 10 fps — higher is better

  • Burst (electronic)

    12 fps vs 10 fps — higher is better

  • Weight

    585 g vs 658 g — lower is better

  • EVF magnification

    0.8 × vs 0.78 × — higher is better

Reasons to choose

Alpha 7 IV

  • 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

  • Card types

    Adds CFexpress Type A, SD UHS-II

  • AF points / zones

    759 vs 273 — higher is better

  • Animal / bird AF

    Only Alpha 7 IV supports it

  • 4K max frame rate

    60 fps vs 30 fps — higher is better

  • Internal RAW video

    Only Alpha 7 IV supports it

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • ISO max (native)Both 51,200
  • Eye AFBoth support eye af
  • In-body stabilizationBoth support in-body stabilization
  • Weather sealingBoth support weather sealing

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Z6

Pros

  • Historic value
  • Solid hybrid
  • Affordable used

Cons

  • Very dated now
  • Single slot
  • Limited video

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

Full specifications

= category winner

Z6
Alpha 7 IV
Resolution
24.5 MP
33 MP+35%
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
Yes
Yes
Z6
Alpha 7 IV
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
-4 EV
-4 EV
Eye AF
Yes
Yes
Animal / bird AF
No
Yes
Subject recognition
People
Human, Animal, Bird, Insect, Car/Train, Airplane
Z6
Alpha 7 IV
Burst (mechanical)
12 fps+20%
10 fps
Burst (electronic)
12 fps+20%
10 fps
Pre-Capture / Pre-Release
No
No
RAW buffer depth
828 frames
Z6
Alpha 7 IV
Max resolution
4K UHD
4K UHD
4K max frame rate
30 fps
60 fps2× more
Max video bit rate
600 Mbps
Internal RAW video
No
Yes
Log profile
N-Log
S-Log3 / HLG / S-Cinetone
Codecs
H.264/AVC
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
Z6
Alpha 7 IV
Weight
585 g−73 g less
658 g
Dimensions (W×H×D mm)
134 × 100.5 × 67.5 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, Z6 or Alpha 7 IV?

Alpha 7 IV scores 8.0/10 versus 4.0/10 for Z6 — Bird AF subject recognition.

What's the resolution difference between the Z6 and Alpha 7 IV?

Z6 is 24.5 MP and Alpha 7 IV is 33 MP, so the Alpha 7 IV captures more detail for cropping and large prints.

Do the Z6 and Alpha 7 IV have in-body image stabilization?

Z6 has 5-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.

Which shoots faster bursts — the Z6 or the Alpha 7 IV?

Z6 reaches 12 fps electronic. Alpha 7 IV reaches 10 fps electronic.

What's the weight difference between the Z6 and Alpha 7 IV?

Z6 weighs 585 g and Alpha 7 IV weighs 658 g, so the Z6 is 73 g lighter.

Do the Z6 and Alpha 7 IV record 4K video?

Z6: 4K up to 30p. Alpha 7 IV: 4K up to 60p.

Are the Z6 and Alpha 7 IV weather sealed?

Z6: Yes. Alpha 7 IV: Yes.

Which has better battery life?

Rated battery life is 310 shots (CIPA) for the Z6 and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.

How much does each cost?

Z6 launched at $1,999 and Alpha 7 IV at $2,499. The Z6 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.