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 priceReleased Apr 2026
Ricoh
GR IV HDF
GR IV variant with built-in Highlight Diffusion Filter for softer rendering and the same 25.74MP APS-C pocket platform.
$1,599
Launch priceReleased Jan 2026
Osmo Pocket 4 is 3 months newer.
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Wins
Osmo Pocket 4
Wins
GR IV HDF
2 categories tied
Which would you choose?
TL;DR — Key differences
- BGR IV HDF has higher Battery life (CIPA) (250 shots vs -1 shots)
- BGR IV HDF has higher ISO max (native) (204,800 vs 12,800)
- AOsmo Pocket 4 has higher Burst (electronic) (20 fps vs 4 fps)
- AOsmo Pocket 4 has lower ISO min (native) (50 vs 100)
- AOsmo Pocket 4 has higher Burst (mechanical) (8 fps vs 4 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Osmo Pocket 4
34 × 144 × 44 mm
190.5 g (0.42 lb / 6.72 oz)
Credit card
85.6 × 54 mm
for scale
GR IV HDF
109 × 61 × 33 mm
262 g (0.58 lb / 9.24 oz)
Osmo Pocket 4 is 76mm narrower than GR IV HDF but it is also 83mm taller and 12mm thicker.
Osmo Pocket 4 is 72 g lighter than GR IV HDF.
Depth (front-to-back): 44mm Osmo Pocket 4 · 33mm GR IV HDF
Back view, to scale
Width × Height — same proportions as the front of the body.
Osmo Pocket 4
34 × 144 mm
Credit card
85.6 × 54 mm
GR IV HDF
109 × 61 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Osmo Pocket 4
34 × 44 mm
Credit card
85.6 × 54 mm
GR IV HDF
109 × 33 mm
Sensor size, to scale
Osmo Pocket 4
13.2 × 8.8 mm · 1-inch
116 mm² area
GR IV HDF
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
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
ISO min (native)
50 vs 100 — 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
Resolution
37 MP vs 25.74 MP — higher is better
Reasons to choose
GR IV HDF
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)
204,800 vs 12,800 — higher is better
Card types
Adds microSDHC, microSDXC UHS-I
Eye AF
Only GR IV HDF supports it
Subject recognition
Adds Eye
In-body stabilization (IBIS)
Only GR IV HDF supports it
Both cameras share
- ✓4K max frame rate — Both 60 fps
- ✓Card slots — Both 1
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both 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 HDF
Pros
- ✓Built-in HDF effect
- ✓25.74MP APS-C sensor
- ✓5-axis SR
- ✓53GB internal memory
Cons
- –No ND filter
- –Fixed lens
- –Full HD video only
Decided which one is right for you?
Compare live prices for the Osmo Pocket 4 and GR IV HDF at major authorized retailers.
DJI Osmo Pocket 4
Ricoh GR IV HDF
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Osmo Pocket 4 or GR IV HDF?
Osmo Pocket 4 scores 10.0/10 versus 1.0/10 for GR IV HDF — 20fps burst — fast action ready.
What's the resolution difference between the Osmo Pocket 4 and GR IV HDF?
Osmo Pocket 4 is 37 MP and GR IV HDF 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 HDF have in-body image stabilization?
Osmo Pocket 4 uses a 3-axis mechanical gimbal, while GR IV HDF has in-body image stabilization.
Which shoots faster bursts — the Osmo Pocket 4 or the GR IV HDF?
Osmo Pocket 4 reaches 20 fps electronic. GR IV HDF reaches 4 fps electronic.
What's the weight difference between the Osmo Pocket 4 and GR IV HDF?
Osmo Pocket 4 weighs 190.5 g and GR IV HDF weighs 262 g, so the Osmo Pocket 4 is 72 g lighter.
Do the Osmo Pocket 4 and GR IV HDF record 4K video?
Osmo Pocket 4: 4K up to 60p. GR IV HDF: 4K up to 60p.
Are the Osmo Pocket 4 and GR IV HDF weather sealed?
Osmo Pocket 4: No. GR IV HDF: 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 HDF, giving the GR IV HDF the edge.
How much does each cost?
Osmo Pocket 4 launched at $499 and GR IV HDF at $1,599. The Osmo Pocket 4 is $1,100 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Osmo Pocket 4 vs GR IV HDF 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.