Fujifilm GFX100RF vs Sony RX1R III
Every published spec side by side, with today's lowest prices for the market you've chosen.
Key differences
- Announced: Jul 2025 on the RX1R III, against Mar 2025 on the GFX100RF.
- Sensor size: Medium format on the GFX100RF, against Full frame on the RX1R III.
- Resolution: 102 MP on the GFX100RF, against 61 MP on the RX1R III.
- Native ISO: 100–32,000 on the RX1R III, against 80–12,800 on the GFX100RF.
- Burst (mechanical): 6 fps on the GFX100RF, against 5 fps on the RX1R III.
- Fastest shutter (elec.): 1/16,000s on the GFX100RF, against 1/8,000s on the RX1R III.
GFX100RF or RX1R III: which should you buy?
Choose the GFX100RF for its sensor size, resolution, burst (mechanical) and fastest shutter (elec.). It leads on 8 specs in all.
Choose the RX1R III for its native ISO, rear screen and weight (with battery).
On paper the GFX100RF wins more rows (8 to 3); if the RX1R III's strengths are the ones you shoot with, and its price is lower where you buy, it can still be the better buy.
 |  | |
|---|---|---|
| Lowest price today | $5,599 new $4,199.92 used | $5,098 new $3,948.57 used |
| Overview | ||
| Type | Medium format | Compact (fixed lens) |
| Announced | Mar 2025 | Jul 2025 (best) |
| US launch priceUS list price when announced, body only. Today's prices are in the offers table. | $4,899.95 | $5,099.99 |
| Lens | 28mm (35mm eq.) f/4 | 35mm (35mm eq.) f/2 |
| Sensor & image | ||
| Sensor size | Medium format (best) | Full frame |
| Sensor type | CMOS | BSI CMOS |
| Resolution | 102 MP (best) | 61 MP |
| Native ISO | 80–12,800 | 100–32,000 (best) |
| In-body stabilisation | No | No |
| Speed & autofocus | ||
| Burst (mechanical) | 6 fps (best) | 5 fps |
| Burst (electronic) | 3 fps | — |
| Fastest shutter (mech.) | 1/4,000s | 1/4,000s |
| Fastest shutter (elec.) | 1/16,000s (best) | 1/8,000s |
| AF pointsMakers count points differently, so this is not ranked. | 425 | 693 |
| Subject detectionMakers group subjects differently (Canon's "animal" includes birds), so only having it is ranked. | Human, Animal, Bird, Vehicle, Aircraft, Train | Human, Animal, Bird, Insect, Vehicle, Train, Aircraft |
| Video | ||
| Max resolution | 4K | 4K |
| 4K frame rate | 30p | 30p |
| 10-bit internal | Yes | Yes |
| Internal raw video | No | No |
| Mic input | Yes | Yes |
| Headphone jack | Yes (best) | No |
| Viewfinder & screen | ||
| Viewfinder | Electronic, 5.76M dots (best) | Electronic, 2.36M dots |
| Rear screen | 3.15", 2.10M dots | 3", 2.36M dots (best) |
| Screen articulation | Tilting | Fixed |
| Touchscreen | Yes | Yes |
| Body & battery | ||
| Weight (with battery) | 735 g | 498 g (best) |
| Dimensions (W×H×D) | 133.5 × 90.4 × 76.5 mm | 113.3 × 67.9 × 87.5 mm |
| Weather sealed | Yes | — |
| Battery (CIPA shots) | 820 (best) | 300 |
| Card slots | 2 · SD UHS-II + SD UHS-II (best) | 1 · SD UHS-II |
| USB-C | Yes | Yes |
| Built-in flash | No | No |
| Wi-Fi / Bluetooth | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth |
Green marks the better figure where “better” is unambiguous. A dash means the maker doesn't publish it or we haven't verified it yet.
Price history: is the newer one cheaper?
Low light & noise
GFX100RF
3.8 µm pixels
102 MP on a medium format sensor, ISO up to 12,800
RX1R III
3.8 µm pixels
61 MP on a full frame sensor, ISO up to 32,000
Bigger pixels gather more light each, so they tend to show less noise at high ISO, but sensor design matters as much. For real noise at ISO 6400, these sites measure it:
- Photons to Photos: dynamic range vs ISO ↗Photographic dynamic range measured at every ISO, bodies on one chart
- Photons to Photos: noise vs ISO ↗Read noise at every ISO from lab tests: lower is cleaner in the shadows
- DPReview studio scene ↗The same scene shot by each camera at the ISO you pick, side by side
- DPReview reviews ↗Full reviews with high-ISO samples
- Low-light video tests ↗Real-world high-ISO footage on YouTube
Size, to scale
Front (width × height)
Top (width × depth)