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Fujifilm GFX100S II vs Panasonic LUMIX S1RII

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

FujifilmGFX100S IIPanasonicLUMIX S1RII
Overview
ReleasedJune 2024March 2025
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatMedium formatFull frame
Sensor typeGFX 102MP CMOS IIBSI CMOS
Sensor dimensions43.8 × 32.9 mm35.8 × 23.9 mm
Effective resolution102 MP44.3 MP
Largest image11648 × 87368144 × 5424
RAW recordingYesYes
Standard ISO range80–1280080–51200
Sensor detail–44.3 million effective and 45.9 million total pixels; 35.8 × 23.9 mm BSI CMOS (maker US announcement); normal 3:2 stills 8144×5424. Eight-frame high-resolution composites reach 16288×10848 and are separate from native sensor resolution
Image formatsJPEG, 10-bit 4:2:2 HEIF, 14/16-bit RAF RAW and in-camera converted TIFF; four-shot full-colour 102-megapixel and sixteen-shot 400-megapixel modes require Fujifilm Pixel Shift Combiner computer software, not a 400-megapixel single exposureJPEG, RAW and HEIF; high-resolution composites use RAW/JPEG rather than HEIF
ISO detailStandard still ISO80–12800; extended ISO40/25600/51200/102400; standard movie ISO100–12800, extended ISO25600Standard stills ISO 80–51200; expanded 40 and 102400; native standard sensitivities ISO 80/400, distinct from V-Log and other video profiles
Image processorX-Processor 5–
Lens and shooting
Lens mountFujifilm G mountL-Mount
StabilisationSensor shiftLens and sensor shift
Maximum continuous burst7 fps40 fps
Lens detailFujifilm G mount; exact maker photograph shows GF32–64mmF4 R LM WR, excluded from body specifications and weight–
AutofocusHybrid phase/contrast autofocus; 117 or 425 selectable single points and customisable zones; animal, bird, vehicle, aeroplane and train recognition, plus human face/eye detection. Maker specifies BIRD setting for insects and AIRPLANE for dronesPhase Hybrid AF using phase and contrast detection; human, animal, car, motorcycle/bicycle, train and aircraft recognition; −6 to 18 EV with f/1.4 lens, ISO 100 and AFS. Subject type must be selected manually (both reviews)
ShutterMechanical up to 1/4000 second, electronic up to 1/16000 second; exposures up to 60 minutes. Maker cautions against electronic shutter for fast movement; flash unavailable with electronic shutterMechanical 60–1/8000 second and Bulb to approximately 30 minutes; electronic first curtain 60–1/2000; electronic image-priority 60–1/8000 or speed-priority 60–1/16000, Bulb to approximately 60 seconds
Burst detailMaximum 7 fps mechanical, with maker cold-start buffer 184 JPEG or 30 compressed RAW frames; media and conditions affect results. Electronic shooting is 3 fps full-sensor or 4.1 fps with 35 mm Format crop. Amateur Photographer finds live view between frames available only at 2 fpsFull-resolution electronic SH 40 or 20 fps with AFS/AFC/MF; SH buffer 70 RAW/JPEG or 65 HEIF frames. Mechanical speed-priority H+ up to 10 fps AFC, or 8 fps AFC with live view; image-priority H+ 9 fps AFC, or 7 fps AFC with live view. Current maker settings supersede older review reports that electronic 20 fps was unavailable
Stabilisation detailFive-axis sensor shift; maker up to 8 stops based on CIPA pitch/yaw with GF63mmF2.8 R WR. Digital movie stabilisation adds 1.1× crop in specified modesFive-axis sensor-shift B.I.S., eight centre/seven corner stops with S-R2060 at 60 mm; Dual I.S.2 seven centre/corner stops with S-R24105 at 105 mm, CIPA-2024. Electronic video IS is separate; current Japan table marks crop-less mode as firmware 3.0
FlashCompatible external TTL hot shoe and synchronisation terminal; mechanical sync 1/125 second or slowerExternal flash support, no built-in flash (Photography Blog); sync up to 1/250 second with maker flash-output restrictions
Exposure controlsPASM mode dial with six custom positions; twin command dials, configurable controls and 20 film simulations including REALA ACE–
Video
Highest video resolution4096 × 2160 at 29.97 fps8064 × 5376 at 24 fps
Video detailDCI4K 4096×2160 and UHD4K 3840×2160 up to 29.97p; Full HD up to 59.94p. H.265 4:2:2 10-bit recording, F-Log2 and waveform/vectorscope monitoring; ProRes requires compatible external USB-C SSD. HDMI RAW is 3840×2160 up to 29.97p at 12-bit. Maker video table lists 1.0× crop with digital stabilisation off, 1.1× for specified digital-stabilisation modesCurrent maker supplement lists internal 8064×5376 3:2 open-gate HEVC 4:2:0 10-bit at 23.98/24p; 8128×4288 17:9 at 29.97p and 7680×4320 UHD at 29.97p. Internal 5760×3040 ProRes RAW HQ/RAW up to 29.97p; image-area and media restrictions depend on mode. HDMI RAW 8128×5418 at 23.98p is external-recorder output, not the internal headline. Open-gate 8.1K was a promised firmware upgrade at launch and appears in the current maker table; no launch availability inferred
AudioSeparate 3.5 mm stereo microphone and headphone socketsStereo built-in microphone; MOV LPCM up to 96 kHz/24-bit, with built-in microphone limited to 48 kHz; optional DMW-XLR2 required for 32-bit float recording
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3.2″3″
Screen dots2,360,0001,840,000
TouchscreenYesYes
Tilting screenYesYes
Display detailThree-direction tilting 3.2-inch 4:3 touchscreen, approximately 2.36 million dots; 1.8-inch monochrome top status display, 303×230 dotsThree-inch 3:2 capacitive touchscreen, approximately 1.84 million dots and 100% coverage; tilt and free-angle articulation (Panasonic UK)
Viewfinder detailFixed 0.5-inch OLED EVF, approximately 5.76 million dots, 100% coverage and 0.84× magnification with 50 mm equivalent lens at infinity, −1 dioptre0.5-inch OLED, approximately 5.76 million dots, 100% coverage and 0.78× magnification with 50 mm lens at infinity, −1 dioptre and 3:2 aspect ratio
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)530 photographs280 photographs
Body weight802 g712 g
Release detailMaker announcement dated 16 May 2024 states worldwide launch in June and onward; month precision retained rather than assuming an exact first global retail dayMaker US announcement specifies late March 2025 availability, retained at month precision without inventing a day or a UK-specific launch date
Recording mediaTwo UHS-II SD/SDHC/SDXC slots; maker lists cards and compatible external SSDs up to 2 TB, compatibility list appliesOne CFexpress Type B slot and one SD/SDHC/SDXC UHS-II slot; no XQD support inferred from Photography Blog's conflicting table
PortsUSB-C USB3.2 Gen2×1, micro HDMI Type D, separate 3.5 mm microphone/headphone sockets, 2.5 mm remote-release socket, hot shoe and synchronisation terminalUSB-C 10 Gbps with USB Power Delivery, full-size HDMI Type A, 2.5 mm remote, 3.5 mm stereo microphone and headphone connections; no flash-sync terminal in Japan table
Wireless connectionsWi-Fi IEEE802.11a/b/g/n/ac; Bluetooth Low Energy 4.2; maker Frame.io Camera to Cloud supportWi-Fi 2.4 GHz 802.11b/g/n and 5 GHz 802.11a/n/ac; Bluetooth Low Energy 5.0; Japan channel ranges not assumed identical in every region
Battery life detailNP-W235; approximately 530 Normal-mode shots with Auto Power Save enabled and GF63mmF2.8 R WR under maker CIPA conditions; USB charging supportedDMW-BLK22; SD-card CIPA approximately 280 EVF/350 LCD shots with S-R24105, or 1100 in specified power-save EVF mode; CFexpress approximately 280/340 or 950 respectively
Charging–In-camera USB charging and power supply, including USB Power Delivery; optional DMW-AC11 AC adapter
Dimensions150.0×104.2×87.2 mm; minimum depth 44.0 mmApproximately 134.3 × 102.3 × 91.8 mm, excluding protrusions
Weight detailApproximately 802 g without battery/card or 883 g including battery/card; photographed lens and optional MHG-GFX S hand grip excludedPanasonic UK specifies 712 g body only and 795 g with shoe cover, battery and SD card; photographed body excludes lens
MaterialsMagnesium-alloy body sealed in 60 places; maker weather-resistance statement assumes weather-resistant GF lens, operating temperature −10°C to +40°CDust, splash and freeze-resistant body; maker operating range −10 to 40°C with cold-temperature battery and lens restrictions; no waterproof rating inferred
In the box–Japan maker lists battery, battery charger, shoulder strap, body cap, hot-shoe cover and battery-grip contact cover; regional bundle contents may vary

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