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 IVx
40mm-equivalent GR IV sibling with a newly designed 26.1mm f/2.8 lens, 25.74MP APS-C sensor, 5-axis SR, 4K video, 53GB internal storage, and pocket street-camera handling. Winter 2026 planned.
$1,499
Launch priceReleased Dec 2026
GR IVx is 1.7 years newer.
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Wins
GFX100RF
Wins
GR IVx
1 categories tied
Which would you choose?
TL;DR — Key differences
- BGR IVx has higher ISO max (native) (204,800 vs 12,800)
- AGFX100RF has higher AF points / zones (425 vs 49)
- AGFX100RF has higher Max video bit rate (720 Mbps vs 150 Mbps)
- AGFX100RF has higher Resolution (102 MP vs 25.74 MP)
- AGFX100RF has higher Battery life (CIPA) (820 shots vs 250 shots)
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 IVx
109 × 61 × 33 mm
265 g (0.58 lb / 9.35 oz)
GFX100RF is 24mm wider, 29mm taller, and 43mm thicker than GR IVx.
GFX100RF is 470 g heavier than GR IVx.
Depth (front-to-back): 77mm GFX100RF · 33mm GR IVx
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 IVx
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 IVx
109 × 33 mm
Sensor size, to scale
GFX100RF
43.8 × 32.9 mm · Medium Format
1441 mm² area
GR IVx
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
Max video bit rate
720 Mbps vs 150 Mbps — higher is better
Resolution
102 MP vs 25.74 MP — higher is better
Battery life (CIPA)
820 shots vs 250 shots — higher is better
Reasons to choose
GR IVx
Subject recognition
Adds Face, Eye
Codecs
Adds MPEG-4 AVC/H.264, MOV
Dimensions (W×H×D mm)
Adds 109.4, 61.1, 33.4
Card types
Adds microSD, microSDHC, microSDXC UHS-I
ISO max (native)
204,800 vs 12,800 — higher is better
Weight
265 g vs 735 g — lower is better
In-body stabilization (IBIS)
Only GR IVx supports it
Burst (electronic)
4 fps vs 3 fps — higher is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓4K max frame rate — Both 30 fps
- ✓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 IVx
Pros
- ✓New 26.1mm f/2.8 GR lens (40mm equiv.)
- ✓GR IV 25.74MP APS-C + 5-axis SR
- ✓4K 30p/24p and 53GB built-in storage
- ✓Snap focus, 50/71mm crops, 2-stop ND
- ✓Pocketable 265g body
Cons
- –Price not yet announced (listed at GR IV $1,499)
- –Winter 2026 or later — still in development as of Aug 2026
- –No built-in EVF
- –Fixed 40mm-equiv. lens
Decided which one is right for you?
Compare live prices for the GFX100RF and GR IVx at major authorized retailers.
Fujifilm GFX100RF
Ricoh GR IVx
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, GFX100RF or GR IVx?
GFX100RF scores 5.0/10 versus 1.0/10 for GR IVx — Bird AF subject recognition.
What's the resolution difference between the GFX100RF and GR IVx?
GFX100RF is 102 MP and GR IVx is 25.74 MP, so the GFX100RF captures more detail for cropping and large prints.
Do the GFX100RF and GR IVx have in-body image stabilization?
GFX100RF does not have IBIS, while GR IVx has in-body image stabilization.
Which shoots faster bursts — the GFX100RF or the GR IVx?
GFX100RF reaches 6 fps mechanical. GR IVx reaches 4 fps electronic.
What's the weight difference between the GFX100RF and GR IVx?
GFX100RF weighs 735 g and GR IVx weighs 265 g, so the GR IVx is 470 g lighter.
Do the GFX100RF and GR IVx record 4K video?
GFX100RF: 4K up to 30p. GR IVx: 4K up to 30p.
Are the GFX100RF and GR IVx weather sealed?
GFX100RF: Yes. GR IVx: No.
Which has better battery life?
Rated battery life is 820 shots (CIPA) for the GFX100RF and 250 shots for the GR IVx, giving the GFX100RF the edge.
How much does each cost?
GFX100RF launched at $4,899 and GR IVx at $1,499. The GR IVx is $3,400 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way GFX100RF vs GR IVx vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of Fujifilm and Ricoh press materials.