PowerShot G7X Mark IIvs Pentax K-3 Mark III
Canon
PowerShot G7X Mark II (2016)
Starting from £350 new
Best for Travel & Vlogging
View PowerShot G7X Mark II
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.
Who should buy what
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 |
Suitability by genre
| Genre | PowerShot G7X Mark II | Pentax K-3 Mark III |
|---|---|---|
| Travel | ||
| Casual | — | |
| Vlogging & Video | ||
| Street | — | |
| Portrait | ||
| Landscape | ||
| Wildlife | — | |
| Sports & Action | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history