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Osmo Pocket 4

DJI

Osmo Pocket 4

Fourth-gen 1-inch pocket gimbal camera with 4K/240fps slow-motion, 14-stop D-Log, ActiveTrack 7.0, 107GB built-in storage, and 240-min battery.

$499

Launch price

Released Apr 2026

vs
GR IV Monochrome

Ricoh

GR IV Monochrome

Monochrome-only GR IV with 25.74MP APS-C sensor, red filter mode, 5-axis SR, and classic 28mm pocket street-camera design.

$2,199

Launch price

Released Jan 2026

Osmo Pocket 4 is 3 months newer.

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Wins

6categories

Osmo Pocket 4

Sports & Action

Wins

2categories

GR IV Monochrome

PortraitVlogging

2 categories tied

Which would you choose?

TL;DR — Key differences

Osmo Pocket 4 wins 3 categories·GR IV Monochrome wins 2 categories
  • BGR IV Monochrome has higher Battery life (CIPA) (250 shots vs -1 shots)
  • BGR IV Monochrome has higher ISO max (native) (409,600 vs 12,800)
  • AOsmo Pocket 4 has higher Burst (electronic) (20 fps vs 4 fps)
  • AOsmo Pocket 4 has higher 1080p max frame rate (240 fps vs 60 fps)
  • AOsmo Pocket 4 has lower ISO min (native) (50 vs 160)

Key specs at a glance

Osmo Pocket 4GR IV Monochrome
Resolution37 MP25.74 MP
Sensor13.2 × 8.8 mmAPS-C
ISO max12,800409,600
Burst20 fps4 fps
4K60 fps60 fps
IBISNoYes
Weight190.5 g262 g
Battery-1 shots250 shots

Size and weight, to scale

Osmo Pocket 4 front view

Osmo Pocket 4

34 × 144 × 44 mm

190.5 g (0.42 lb / 6.72 oz)

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

Credit card

85.6 × 54 mm

for scale

GR IV Monochrome front view

GR IV Monochrome

109 × 61 × 33 mm

262 g (0.58 lb / 9.24 oz)

Osmo Pocket 4 is 76mm narrower than GR IV Monochrome but it is also 83mm taller and 12mm thicker.

Osmo Pocket 4 is 72 g lighter than GR IV Monochrome.

Depth (front-to-back): 44mm Osmo Pocket 4 · 33mm GR IV Monochrome

Back view, to scale

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

Osmo Pocket 4 back view

Osmo Pocket 4

34 × 144 mm

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

Credit card

85.6 × 54 mm

GR IV Monochrome back view

GR IV Monochrome

109 × 61 mm

Top view, to scale

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

Osmo Pocket 4 top view

Osmo Pocket 4

34 × 44 mm

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

Credit card

85.6 × 54 mm

GR IV Monochrome top view

GR IV Monochrome

109 × 33 mm

Sensor size, to scale

Osmo Pocket 4

13.2 × 8.8 mm · 1-inch

116 mm² area

GR IV Monochrome

23.3 × 15.5 mm · APS-C

361 mm² area

3.1× larger sensor area = shallower depth of field and better low-light performance.

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseOsmo Pocket 4GR IV Monochrome
Portrait
2.5Limited
6.5Good✓ wins
Sports & Action
10.0Excellent✓ wins
1.5Limited
Video & Hybrid
4.0Fair✓ wins
3.5Limited
Landscape
3.0Limited✓ wins
2.5Limited
Travel
4.5Fair
5.5Fair✓ wins
Wildlife
4.0Fair✓ wins
1.0Limited
Vlogging
4.0Fair
6.5Good✓ wins

Why pick one over the other

Reasons to choose

Osmo Pocket 4

  • Codecs

    Adds HEVC (H.265), H.264

  • Dimensions (W×H×D mm)

    Adds 33.5, 144.2, 44.4

  • Burst (electronic)

    20 fps vs 4 fps — higher is better

  • 1080p max frame rate

    240 fps vs 60 fps — higher is better

  • ISO min (native)

    50 vs 160 — lower is better

  • Subject recognition

    Adds Human

  • Burst (mechanical)

    8 fps vs 4 fps — higher is better

  • Pre-Capture / Pre-Release

    Only Osmo Pocket 4 supports it

Reasons to choose

GR IV Monochrome

  • Battery life (CIPA)

    250 shots vs -1 shots — higher is better

  • Codecs

    Adds MPEG-4 AVC/H.264, MOV

  • Dimensions (W×H×D mm)

    Adds 109.4, 61.1, 32.7

  • ISO max (native)

    409,600 vs 12,800 — higher is better

  • Card types

    Adds microSDHC, microSDXC UHS-I

  • Eye AF

    Only GR IV Monochrome supports it

  • Subject recognition

    Adds Eye

  • In-body stabilization (IBIS)

    Only GR IV Monochrome supports it

Both cameras share

  • 4K max frame rateBoth 60 fps
  • Card slotsBoth 1
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Osmo Pocket 4

Pros

  • 4K/240fps slow-motion
  • 14-stop dynamic range + 10-bit D-Log
  • 107GB built-in + 800MB/s transfer
  • 240-min battery life

Cons

  • No US official sale (FCC pending)
  • No weathersealing
  • Fixed lens

GR IV Monochrome

Pros

  • Monochrome APS-C sensor
  • ISO 160-409600
  • 5-axis SR
  • Red filter mode

Cons

  • Black-and-white only
  • Fixed lens
  • Full HD video only

Decided which one is right for you?

Compare live prices for the Osmo Pocket 4 and GR IV Monochrome at major authorized retailers.

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Full specifications

= category winner

Osmo Pocket 4
GR IV Monochrome
Resolution
37 MP+44%
25.74 MP
Sensor type
1-inch CMOS
APS-C Monochrome CMOS
Sensor size
13.2 × 8.8 mm
23.3 x 15.5 mm
AA filter
No
No
Osmo Pocket 4
GR IV Monochrome
Aperture
f/2.0
F2.8-F16
Focal length (35mm equiv.)
28 mm
Osmo Pocket 4
GR IV Monochrome
Processor
GR ENGINE 7
Osmo Pocket 4
GR IV Monochrome
ISO min (native)
50−110 less
160
ISO max (native)
12,800
409,600+5 stops
ISO max (expanded)
25,600
409,600
Osmo Pocket 4
GR IV Monochrome
Shutter type
Electronic shutter
Leaf shutter
Max mechanical speed
1/8000 sec
1/4000 sec
Max electronic speed
1/8000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, Osmo Pocket 4 or GR IV Monochrome?

Osmo Pocket 4 scores 10.0/10 versus 1.5/10 for GR IV Monochrome — 20fps burst — fast action ready.

What's the resolution difference between the Osmo Pocket 4 and GR IV Monochrome?

Osmo Pocket 4 is 37 MP and GR IV Monochrome is 25.74 MP, so the Osmo Pocket 4 captures more detail for cropping and large prints.

Do the Osmo Pocket 4 and GR IV Monochrome have in-body image stabilization?

Osmo Pocket 4 uses a 3-axis mechanical gimbal, while GR IV Monochrome has in-body image stabilization.

Which shoots faster bursts — the Osmo Pocket 4 or the GR IV Monochrome?

Osmo Pocket 4 reaches 20 fps electronic. GR IV Monochrome reaches 4 fps electronic.

What's the weight difference between the Osmo Pocket 4 and GR IV Monochrome?

Osmo Pocket 4 weighs 190.5 g and GR IV Monochrome weighs 262 g, so the Osmo Pocket 4 is 72 g lighter.

Do the Osmo Pocket 4 and GR IV Monochrome record 4K video?

Osmo Pocket 4: 4K up to 60p. GR IV Monochrome: 4K up to 60p.

Are the Osmo Pocket 4 and GR IV Monochrome weather sealed?

Osmo Pocket 4: No. GR IV Monochrome: No.

Which has better battery life?

Rated battery life is -1 shots (CIPA) for the Osmo Pocket 4 and 250 shots for the GR IV Monochrome, giving the GR IV Monochrome the edge.

How much does each cost?

Osmo Pocket 4 launched at $499 and GR IV Monochrome at $2,199. The Osmo Pocket 4 is $1,700 less.

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

Add any camera to get a three-way Osmo Pocket 4 vs GR IV Monochrome vs X comparison.

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

Product images courtesy of DJI and Ricoh press materials.