📷 Cameras 🔭 Lenses 🎒 Accessories 🏷 Brands

PowerShot G7X Mark IIvs Pentax K-3 Mark III

GearFrame · Updated March 2026

Canon PowerShot G7X Mark II Canon PowerShot G7X Mark II (2016) Starting from £350 new Best for Travel & Vlogging View PowerShot G7X Mark II
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?

Travel & Vlogging — PowerShot G7X Mark II (2016): The G7X Mark II is one of the most popular compact cameras ever made — and for good reason. A fast f/1.8-2.8 lens, 20MP 1-inch sensor, flip-up selfie screen, and Micro USB charging combine in one of the most vlog-friendly compact cameras available. No 4K and no EVF are the main compromises, but the G7X II remains outstanding value on the used market.

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

PowerShot G7X Mark II (2016)

  • Vloggers and content creators who want a compact, selfie-screen camera
  • Travel photographers who want 1-inch quality in a coat pocket
  • Casual photographers stepping up from a smartphone
  • Used-market buyers wanting G7X quality at a lower price

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 powershot g7x mark ii is the most affordable; only the pentax k-3 mark iii is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification PowerShot G7X Mark II (2016)Pentax K-3 Mark III (2021)
Price £350 £1,699
Sensor 20.1MP 1-inch BSI CMOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 20.1MP 25.7MP
Video 1080p/60p 4K/30p, 1080p/60p
Autofocus Contrast-detect AF with face detection SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation Optical IS (lens) 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 8fps 12fps
Battery Life ~265 shots (CIPA) 800 shots (CIPA)
Weight 319g (with battery and card) 820g body only
Dimensions 105.5 × 60.9 × 42.2mm 134.5 × 103.5 × 73.5mm
Weather Sealed No Yes
Viewfinder None Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.0" flip-up touchscreen (180°), 1.04M dots 3.2" tilting touchscreen
Mount Fixed Canon 24-100mm f/1.8-2.8 (equivalent) Pentax KF-mount
Memory Cards Single SD UHS-I slot Dual SD UHS-II
Connectivity Micro USB, Wi-Fi, NFC, Bluetooth USB-C, Wi-Fi, Bluetooth
Genre PowerShot G7X Mark IIPentax K-3 Mark III
Travel
9.0
7.0
Casual
8.5
Vlogging & Video
8.0
4.0
Street
7.5
Portrait
7.5
7.0
Landscape
6.0
9.0
Wildlife
9.0
Sports & Action
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 PowerShot G7X Mark II prices → Pentax K-3 Mark III prices →

More comparisons with PowerShot G7X Mark II

Camera family history