Camera Comparison: Sony RX1R III vs Fujifilm GFX100RF vs Fujifilm X100VI

Sensor & Resolution

61 MP full-frame (Exmor R BSI CMOS)

102 MP medium format CMOS II

40.2 MP APS‑C X‑Trans CMOS 5 HR

Lens

Zeiss Sonnar T* 35 mm f/2

GF 35 mm f/4 (~28 mm eq.)

Fujinon 23 mm f/2 (35 mm eq.)

Autofocus

693-point AI Real-time Tracking AF

AI subject recognition AF

Subject recognition AF

IBIS

No IBIS

No IBIS

6-stop IBIS

Video

4K30p, FHD120p

4K30p, F-Log2, 10-bit 4:2:2

6.2K30p, 4K60p, 10-bit 4:2:2

Viewfinder

2.36M-dot OLED EVF

5.76M-dot EVF, 0.84× mag

Hybrid OVF/EVF, 3.69M-dot EVF

Display

3″ fixed touchscreen 2.36M-dot

3.15″ tilting 2.1M-dot touchscreen

3″ tilting touchscreen 1.62M-dot

Burst Rate

5 fps

6 fps

11 fps

ISO Range (Base–Max)

100–32,000 (50–102,400 ext.)

80–12,800 (video 100–12,800)

125–12,800 (64–51,200 ext.)

Storage

Single UHS-II SD slot

Dual UHS-II SD slots + SSD option

Single UHS-I SD slot

Battery Life

~520 shots

~820 shots

~310-450 shots EVF vs OVF

Size (mm)

113.3×67.9×87.5 mm

133.5×90.4×76.5 mm

128×75×55 mm

Weight

498 g

735 g

521 g

Price (USD)

~$5,099

~$4,900

$1,599

Special Features

Step crop mode, AI AF, magnesium body

Leaf shutter, ND filter, aspect dial

Hybrid finder, built-in 4-stop ND