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Ricoh

GR Digital IV

Cult compact GR Digital with 10MP CCD sensor, fast 28mm equivalent f/1.9 lens, and sensor-shift stabilization.

$599

Launch price

Released Sep 2011

vs
Alpha 7 IV

Sony

Alpha 7 IV

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

$2,499

Launch price

Released Oct 2021

Alpha 7 IV is 10.1 years newer.

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Wins

2categories

GR Digital IV

Wins

7categories

Alpha 7 IV

PortraitWildlife

1 categories tied

Which would you choose?

TL;DR — Key differences

GR Digital IV wins 0 categories·Alpha 7 IV wins 5 categories
  • BAlpha 7 IV has higher ISO max (native) (51,200 vs 3,200)
  • BAlpha 7 IV has higher Burst (mechanical) (10 fps vs 1.54 fps)
  • BAlpha 7 IV has higher Burst (electronic) (10 fps vs 1.54 fps)
  • BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 150 Mbps)
  • BAlpha 7 IV has higher Resolution (33 MP vs 10 MP)

Key specs at a glance

GR Digital IVAlpha 7 IV
Resolution10 MP33 MP
Sensor1/1.7 inchFull Frame
ISO max3,20051,200
Burst1.54 fps10 fps
4K60 fps60 fps
IBISYes5.5-stop
Weight219 g658 g
Battery390 shots580 shots

Size and weight, to scale

GR Digital IV

109 × 60 × 33 mm

219 g (0.48 lb / 7.73 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 7 IV front view

Alpha 7 IV

131 × 96 × 80 mm

658 g (1.45 lb / 23.21 oz)

GR Digital IV is 23mm narrower, 37mm shorter, and 47mm thinner than Alpha 7 IV.

GR Digital IV is 439 g lighter than Alpha 7 IV.

Depth (front-to-back): 33mm GR Digital IV · 80mm Alpha 7 IV

Back view, to scale

Width × Height — same proportions as the front of the body.

GR Digital IV

109 × 60 mm

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

Credit card

85.6 × 54 mm

Alpha 7 IV back view

Alpha 7 IV

131 × 96 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

GR Digital IV

109 × 33 mm

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

Credit card

85.6 × 54 mm

Alpha 7 IV top view

Alpha 7 IV

131 × 80 mm

Sensor size, to scale

Alpha 7 IV

35.9 × 23.9 mm · Full Frame

858 mm² area

Lens ecosystem

Native lens selection

GR Digital IV: mount data unavailable

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 caseGR Digital IVAlpha 7 IV
Portrait
2.0Limited
9.0Excellent✓ wins
Sports & Action
1.0Limited
6.5Good✓ wins
Video & Hybrid
3.5Limited
7.5Good✓ wins
Landscape
1.0Limited
7.5Good✓ wins
Travel
5.0Fair
7.0Good✓ wins
Wildlife
0.0Limited
8.0Excellent✓ wins
Vlogging
5.0Fair
8.0Excellent✓ wins

Why pick one over the other

Reasons to choose

GR Digital IV

  • Codecs

    Adds Motion JPEG AVI

  • Dimensions (W×H×D mm)

    Adds 108.6, 59.8, 32.5

  • Card types

    Adds SD, SDHC, Eye-Fi

  • Weight

    219 g vs 658 g — lower is better

  • ISO min (native)

    80 vs 100 — lower 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

  • ISO max (native)

    51,200 vs 3,200 — higher is better

  • Burst (mechanical)

    10 fps vs 1.54 fps — higher is better

  • Burst (electronic)

    10 fps vs 1.54 fps — higher is better

  • Max video bit rate

    600 Mbps vs 150 Mbps — higher is better

Both cameras share

  • 4K max frame rateBoth 60 fps
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)

Pros & cons at a glance

Editorially curated highlights and trade-offs.

GR Digital IV

Pros

  • Fast f/1.9 GR lens
  • CCD rendering
  • Compact classic
  • Sensor-shift stabilization

Cons

  • Small sensor
  • VGA video only
  • Very old model

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 GR Digital IV and Alpha 7 IV at major authorized retailers.

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Full specifications

= category winner

GR Digital IV
Alpha 7 IV
Resolution
10 MP
33 MP3.3× more
Sensor type
1/1.7" CCD
Full Frame Exmor R CMOS
Sensor size
1/1.7 inch
35.9 × 23.9 mm
AA filter
Yes
GR Digital IV
Alpha 7 IV
Aperture
F1.9-F9
Focal length (35mm equiv.)
28 mm
GR Digital IV
Alpha 7 IV
Processor
GR ENGINE IV
BIONZ XR
GR Digital IV
Alpha 7 IV
ISO min (native)
80−20 less
100
ISO max (native)
3,200
51,200+4 stops
ISO max (expanded)
3,200
204,800
GR Digital IV
Alpha 7 IV
Shutter type
Mechanical + electronic shutter
Mechanical + Electronic
Max mechanical speed
1/2000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/8000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, GR Digital IV or Alpha 7 IV?

Alpha 7 IV scores 8.0/10 versus 0.0/10 for GR Digital IV — Bird AF subject recognition.

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

GR Digital IV is 10 MP and Alpha 7 IV is 33 MP, so the Alpha 7 IV captures more detail for cropping and large prints.

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

GR Digital IV has in-body image stabilization, while Alpha 7 IV has 5.5-stop in-body image stabilization.

Which shoots faster bursts — the GR Digital IV or the Alpha 7 IV?

GR Digital IV reaches 1.54 fps electronic. Alpha 7 IV reaches 10 fps electronic.

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

GR Digital IV weighs 219 g and Alpha 7 IV weighs 658 g, so the GR Digital IV is 439 g lighter.

Do the GR Digital IV and Alpha 7 IV record 4K video?

GR Digital IV: 4K up to 60p. Alpha 7 IV: 4K up to 60p.

Are the GR Digital IV and Alpha 7 IV weather sealed?

GR Digital IV: No. Alpha 7 IV: Yes.

Which has better battery life?

Rated battery life is 390 shots (CIPA) for the GR Digital IV and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.

How much does each cost?

GR Digital IV launched at $599 and Alpha 7 IV at $2,499. The GR Digital IV is $1,900 less.

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

Add any camera to get a three-way GR Digital IV vs Alpha 7 IV vs X comparison.

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

Product images courtesy of Ricoh and Sony press materials.