Fujifilm
GFX100RF
Fixed-lens 102MP medium format rangefinder-style camera with a 35mm f/4 lens and built-in ND filter.
$4,899
Launch priceReleased Mar 2025
Ricoh
GR IV
Latest GR with 25.74MP APS-C sensor, 28mm equivalent lens, 5-axis SR, 53GB internal memory, and pocket street-camera handling.
$1,499
Launch priceReleased Jan 2026
GR IV is 9 months newer.
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Wins
GFX100RF
Wins
GR IV
Which would you choose?
TL;DR — Key differences
- BGR IV has higher ISO max (native) (204,800 vs 12,800)
- AGFX100RF has higher AF points / zones (425 vs 49)
- AGFX100RF has higher Resolution (102 MP vs 25.74 MP)
- AGFX100RF has higher Battery life (CIPA) (820 shots vs 250 shots)
- BGR IV has lower Weight (262 g vs 735 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
GFX100RF
134 × 90 × 77 mm
735 g (1.62 lb / 25.93 oz)
Credit card
85.6 × 54 mm
for scale
GR IV
109 × 61 × 33 mm
262 g (0.58 lb / 9.24 oz)
GFX100RF is 24mm wider, 29mm taller, and 44mm thicker than GR IV.
GFX100RF is 473 g heavier than GR IV.
Depth (front-to-back): 77mm GFX100RF · 33mm GR IV
Back view, to scale
Width × Height — same proportions as the front of the body.
GFX100RF
134 × 90 mm
Credit card
85.6 × 54 mm
GR IV
109 × 61 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
GFX100RF
134 × 77 mm
Credit card
85.6 × 54 mm
GR IV
109 × 33 mm
Sensor size, to scale
GFX100RF
43.8 × 32.9 mm · Medium Format
1441 mm² area
GR IV
23.3 × 15.5 mm · APS-C
361 mm² area
4.0× 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
GFX100RF
Subject recognition
Adds Animal, Bird, Automobile…
Codecs
Adds Apple ProRes 422 HQ, Apple ProRes 422, Apple ProRes 422 LT…
Dimensions (W×H×D mm)
Adds 133.5, 90.4, 76.5
Card types
Adds SD UHS-II, SDXC V90, SSD via USB
AF points / zones
425 vs 49 — higher is better
Resolution
102 MP vs 25.74 MP — higher is better
Battery life (CIPA)
820 shots vs 250 shots — higher is better
Animal / bird AF
Only GFX100RF supports it
Reasons to choose
GR IV
Subject recognition
Adds Face, Eye
Codecs
Adds MPEG-4 AVC/H.264, MOV
Dimensions (W×H×D mm)
Adds 109.4, 61.1, 32.7
Card types
Adds microSD, microSDHC, microSDXC UHS-I
ISO max (native)
204,800 vs 12,800 — higher is better
Weight
262 g vs 735 g — lower is better
4K max frame rate
60 fps vs 30 fps — higher is better
In-body stabilization (IBIS)
Only GR IV supports it
Both cameras share
- ✓Eye AF — Both support eye af
- ✓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.
GFX100RF
Pros
- ✓102MP medium format image quality
- ✓Compact fixed-lens GFX design
- ✓Built-in 4-stop ND
- ✓High-resolution EVF
Cons
- –Fixed 35mm f/4 lens
- –No IBIS
- –Premium niche camera
GR IV
Pros
- ✓25.74MP APS-C sensor
- ✓5-axis sensor-shift SR
- ✓53GB internal memory
- ✓Pocketable 28mm GR lens
Cons
- –Fixed lens
- –No built-in EVF
- –Full HD video only
Decided which one is right for you?
Compare live prices for the GFX100RF and GR IV at major authorized retailers.
Fujifilm GFX100RF
Ricoh GR IV
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, GFX100RF or GR IV?
GFX100RF scores 5.0/10 versus 1.0/10 for GR IV — Bird AF subject recognition.
What's the resolution difference between the GFX100RF and GR IV?
GFX100RF is 102 MP and GR IV is 25.74 MP, so the GFX100RF captures more detail for cropping and large prints.
Do the GFX100RF and GR IV have in-body image stabilization?
GFX100RF does not have IBIS, while GR IV has in-body image stabilization.
Which shoots faster bursts — the GFX100RF or the GR IV?
GFX100RF reaches 6 fps mechanical. GR IV reaches 4 fps electronic.
What's the weight difference between the GFX100RF and GR IV?
GFX100RF weighs 735 g and GR IV weighs 262 g, so the GR IV is 473 g lighter.
Do the GFX100RF and GR IV record 4K video?
GFX100RF: 4K up to 30p. GR IV: 4K up to 60p.
Are the GFX100RF and GR IV weather sealed?
GFX100RF: Yes. GR IV: No.
Which has better battery life?
Rated battery life is 820 shots (CIPA) for the GFX100RF and 250 shots for the GR IV, giving the GFX100RF the edge.
How much does each cost?
GFX100RF launched at $4,899 and GR IV at $1,499. The GR IV is $3,400 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way GFX100RF vs GR IV vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Fujifilm and Ricoh press materials.