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GH4vs Pentax K-3 Mark III

GearFrame · Updated March 2026

Lumix GH4 Lumix GH4 (2014) Starting from £349 new Best for Video, independent filmmaking & documentary View GH4
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) Starting from £1699 new Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark III

GearScore™ Verdict — Which should you buy?

Video, Independent Filmmaking & Documentary — GH4 (2014): The world's first consumer 4K camera — the GH4 changed independent filmmaking and proved that broadcast-quality video didn't require a cinema camera budget.

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

GH4 (2014)

  • Videographers and independent filmmakers who want the camera that started the consumer 4K era
  • Content creators looking for a capable 4K body at the lowest entry price
  • MFT system users who want the best video capability on a tight budget
  • Photographers interested in camera history — the GH4 is a landmark piece

Pentax K-3 Mark III (2021)

  • DSLR photographers who want the finest APS-C optical viewfinder experience
  • Outdoor and weather photographers who need robust all-weather sealing
  • Pentax lens owners who want to use their existing K-mount glass
  • Photographers who prefer optical viewfinders and refuse to switch to mirrorless

Quick take: The pentax k-3 mark iii has the highest resolution at 26mp; the gh4 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification GH4 (2014)Pentax K-3 Mark III (2021)
Price £349 £1,699
Sensor 16.05MP Micro Four Thirds Live MOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 16.1MP 25.7MP
Video 4K/30p, C4K/24p (first consumer camera with 4K), 1080p/96fps 4K/30p, 1080p/60p
Autofocus Contrast-detect DFD AF, face detection SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation None (no body IBIS) 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 12fps (AFS), 7fps (AFC) 12fps
Battery Life ~500 shots (CIPA) 800 shots (CIPA)
Weight 560g (with battery and card) 820g body only
Dimensions 133.2 × 93.4 × 83.0mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes Yes
Viewfinder EVF, OLED 2.36M dots, 0.67× magnification Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.0" fully articulating touchscreen 3.2" tilting touchscreen
Mount Micro Four Thirds Pentax KF-mount
Memory Cards Single SD UHS-I slot Dual SD UHS-II
Connectivity USB, Wi-Fi, NFC, 3.5mm mic jack, headphone jack, HDMI USB-C, Wi-Fi, Bluetooth
Genre GH4Pentax K-3 Mark III
Vlogging & Video
9.0
4.0
Travel
7.0
7.0
Portrait
7.0
7.0
Wildlife
7.0
9.0
Sports & Action
7.0
9.0
Landscape
4.0
9.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side GH4 prices → Pentax K-3 Mark III prices →

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