Head to head · specs cited · drawn to scale

OM System OM-5 vs Panasonic Lumix G9 II

Every spec below is quoted from the makers' official pages — where a figure isn't published we say so rather than guess. Sizes are drawn at true relative scale from published dimensions, and the bag-fit row is computed against our measured bag catalog.

The 3 biggest published differences

OM System OM-5 OM-5 Micro Four Thirds
Panasonic Lumix G9 II G9 II Micro Four Thirds
Overview
Type MirrorlessMirrorless
Format 4/3'' (Micro Four Thirds), 17.3 x 13.0mmMicro Four Thirds (17.3 x 13.0 mm)
Lens mount Micro Four ThirdsMicro Four Thirds
Released —, not published—, not published
Sensor & Image
Sensor type 4/3'' Live MOS sensorLive MOS sensor (17.3 x 13.0 mm)
Sensor size 4/3'' (Micro Four Thirds), 17.3 x 13.0mmMicro Four Thirds (17.3 x 13.0 mm)
Resolution (MP) 20.4 Megapixels (effective); 21.8 Megapixels (full)25.21 megapixels effective / 26.52 megapixels total
In-body stabilisation Up to 7.5 EV steps (Sync IS); Up to 6.5 EV steps (Sensor shift)B.I.S. (5-axis / 8.0-stop); Dual I.S. 2 (7.5-stop) (CIPA standard)
ISO range ISO LOW - 25600Normal: Auto / 50 (Extended ISO) / 100-25600; V-Log: Auto / 125 (Extended ISO) / 500-12800
Autofocus & Speed
AF system TTL phase difference detection system, contrast detection systemPhase Detection AF system / Contrast AF system
Subject detection 121 points (all cross type); Eye Detect AF; predictive AFAutomatic Detection can be turned ON to switch between Human / Animal / Car / Motorcycle / Train / Airplane
Burst — mechanical Approx. 10fps (H); 6fps (L)H: 14 frames/sec (AFS/MF), 10 frames/sec (AFC) (with Live View)
Burst — electronic Approx. 30fps (silent, H); Approx. 10fps (L)SH75: 75 frames/sec (AFS/MF); SH60: 60 frames/sec (AFS/AFC/MF); H: 14 frames/sec (AFS/MF), 9 frames/sec (AFC)
Video
Max video 4096 x 2160 (C4K) / 24p; 3840 x 2160 (4K) / 30pC4K 4096x2160 / 4K 3840x2160, up to 119.88p
Codecs / sampling MOV (MPEG-4AVC/H.264)H.265/HEVC (4:2:0 10-bit LongGOP), H.264/MPEG-4 AVC (4:2:2 10-bit ALL-Intra), ProRes (external USB-SSD)
Recording limit Up to card capacityMP4 [4K/60p]: Approx. 90 min (SD card, using H-ES12060/H-FS12060, fully charged battery)
Viewfinder & Screen
EVF resolution 2.360K dotsApprox. 3.68 million dots
EVF magnification Max. 1.37x with a 50mm lensApprox. 1.6x / 0.8x (35mm camera equivalent) with 50 mm lens at infinity, 4:3 aspect
Rear screen 3.0'' (3:2), 1037K dots, Vari-angle LCD - Touch PanelFree-angle, 3.0-inch (7.6cm), 3:2 aspect TFT LCD monitor with static touch control, Approx. 1.84 million dots
Body & Handling
Dimensions (W×H×D) 125.3 × 85.2 × 49.7 mm134.3 × 102.3 × 90.1 mm
Weight (body) 414 g658 g
Weather sealing IP53 (operating temperature -10 - 40 C)Dust and Splash Resistant: Yes (does not guarantee no damage from direct dust/water contact)
Shutter durability —, not published—, not published
Power & Storage
Battery life (CIPA) 310 shotsApprox. 370 images, 1300 images (Power Save LVF mode) with H-ES12060 / DMW-BLK22
Battery BLS-50 Lithium-Ion BatteryLi-ion Battery Pack (7.2V, 2200mAh, 16Wh) / DMW-BLK22
Card slots Single SD (UHS-II compatible)Slot 1, Slot 2 (dual); SD/SDHC/SDXC, UHS-I/UHS-II UHS Speed Class 3, Video Speed Class 90
Connectivity
USB USB 2.0 High SpeedUSB Type-C (SuperSpeed USB 10Gbps (USB 3.2 Gen2))
Wireless Wi-Fi and Bluetooth presentWi-Fi (IEEE802.11a/n/ac), Security WPA/WPA2/WPA3; Bluetooth v5.0 (BLE)
HDMI Micro connector (Type D)HDMI TypeA
Price
Launch price —, not published—, not published
Size, to scale
OM-5125.3×85.2×49.7G9 II134.3×102.3×90.1

Front view, drawn at the same scale from each maker's published W×H (mm).

Smallest bag that fits
Body + standard zoom Think Tank Mirrorless Mover 20 V2 Fits
body only · View at B&H Photo Video
Think Tank Mirrorless Mover 25 V2 Fits
body only · View at B&H Photo Video

Sources

official · OM-5 specifications: OM System (official specifications page) · accessed 2026-07-10
“4/3'' Live MOS sensor, 20.4 Megapixels effective, 4:3 / 17.3 x 13.0mm; Sensor shift, Up to 7.5 EV steps Sync IS; TTL phase difference detection system, contrast detection system, 121 points; EVF 2.360K dots, Max. 1.37x with a 50mm lens; BLS-50 Lithium-Ion Battery, 310 shots”
official · G9 II specifications: Panasonic UK & Ireland (official specifications page) · accessed 2026-07-10
“Live MOS sensor (17.3 x 13.0 mm), 25.21 megapixels effective pixels; B.I.S. (5-axis / 8.0-stop); Burst speed Mechanical shutter H: 14 frames/sec (AFS/MF), 10 frames/sec (AFC)”

Spec values are the manufacturers' published figures, compared factually — we don't rank cameras. Fit verdicts are planning estimates from published interior dimensions, not guarantees. See methodology.

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