X-S20vs Lumix G9 IIvs Pentax K-3 Mark III

GearFrame · Updated March 2026

Fujifilm X-S20 Fujifilm X-S20 (2023) From £849 Best for Hybrid photo & video View X-S20
VS
Lumix Lumix G9 II Lumix Lumix G9 II (2023) From £1499 Best for Wildlife, sports & hybrid MFT shooters View Lumix G9 II
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) From £1699 Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark III

Which should you buy?

Hybrid Photo & Video — X-S20 (2023): Fujifilm's most accessible X-series body — 7-stop IBIS, 6K video, 20 film simulations, and a user-friendly layout.

Wildlife, Sports & Hybrid Mft Shooters — Lumix G9 II (2023): Phase-detect AF transforms the G9 II into a genuine MFT all-rounder — the best Lumix MFT camera for both stills and video.

Dslr Enthusiasts & Outdoor Photographers — Pentax K-3 Mark III (2021): The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.

↓ Full specifications below

X-S20 (2023)

  • You primarily create video content and want a capable but compact Fujifilm
  • You're a vlogger, travel creator, or documentary shooter
  • You want Fujifilm film simulations with strong, reliable video specs

Lumix G9 II (2023)

  • You want the best Micro Four Thirds camera for both stills and video
  • You shoot wildlife, sports, or documentary and value the compact, lightweight MFT system
  • You're invested in the MFT lens ecosystem and want the top-tier body to go with it

Pentax K-3 Mark III (2021)

  • You're a committed DSLR photographer with significant investment in Pentax glass
  • You shoot in extreme weather conditions and place build quality and reliability above everything
  • You prefer optical viewfinder performance and want the best modern APS-C DSLR available

Quick take: The x-s20 has the highest resolution at 26mp; the x-s20 is the most affordable; only the lumix g9 ii, pentax k-3 mark iii are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification X-S20 (2023)Lumix G9 II (2023)Pentax K-3 Mark III (2021)
Price £849 £1,499 £1,699
Sensor 26.1MP APS-C X-Trans CMOS 4 25.2MP Micro Four Thirds Live MOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 26.1MP 25.2MP 25.7MP
Video 6.2K/30p, 4K/60p, F-Log2, 10-bit 5.8K/30p, 4K/120p, C4K/60p, V-Log 4K/30p, 1080p/60p
Autofocus Phase-detect, 425 points, subject tracking Phase-detect AF with subject/face/eye detection SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation 5-axis IBIS, 7.0 stops 8-stop IBIS (with OIS lenses) 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 8fps mechanical, 20fps electronic 25fps with AF / 75fps electronic (fixed focus) 12fps
Battery Life ~750 shots (CIPA) 680 shots (CIPA) 800 shots (CIPA)
Weight 491g body only 658g body only 820g body only
Dimensions 126.0 × 85.1 × 65.4mm 134.3 × 100.3 × 90.5mm 134.5 × 103.5 × 73.5mm
Weather Sealed No Yes Yes
Viewfinder EVF, 2.36M dots, 0.62× magnification 0.76" OLED EVF, 3.68M dots Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.0" fully articulating touchscreen 3.0" fully articulating touchscreen 3.2" tilting touchscreen
Mount Fujifilm X-mount Micro Four Thirds Pentax KF-mount
Memory Cards Single SD UHS-I slot Dual SD UHS-II Dual SD UHS-II
Connectivity USB-C 3.2, Bluetooth, Wi-Fi USB-C 3.1, HDMI full-size, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side X-S20 prices → Lumix G9 II prices → Pentax K-3 Mark III prices →

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