PowerShot G7X Mark IIvs A7R III
Canon
PowerShot G7X Mark II (2016)
Starting from £350 new
Best for Travel & Vlogging
View PowerShot G7X Mark II
Sony
A7R III (2017)
Starting from £1799 new
Best for Landscape, studio & commercial photography
View A7R 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.
Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
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
A7R III (2017)
- Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
- Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
- Commercial and product photographers who want full-frame resolution with IBIS for handheld work
- Portrait photographers who want the sharpest possible full-frame files for large print work
Quick take: The a7r iii has the highest resolution at 42mp; the powershot g7x mark ii is the most affordable; only the a7r iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | PowerShot G7X Mark II (2016) | A7R III (2017) |
|---|---|---|
| Price | £350 | £1,799 |
| Sensor | 20.1MP 1-inch BSI CMOS | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 20.1MP | 42.4MP |
| Video | 1080p/60p | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | Contrast-detect AF with face detection | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | Optical IS (lens) | 5-axis IBIS — 5.5 stops |
| Burst Rate | 8fps | 10fps with AF/AE tracking |
| Battery Life | ~265 shots (CIPA) | ~650 shots (CIPA) |
| Weight | 319g (with battery and card) | 650g body only |
| Dimensions | 105.5 × 60.9 × 42.2mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | No | Yes |
| Viewfinder | None | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.0" flip-up touchscreen (180°), 1.04M dots | 3.0" touchscreen, tilting |
| Mount | Fixed Canon 24-100mm f/1.8-2.8 (equivalent) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-I slot | Dual SD slots (one UHS-II) |
| Connectivity | Micro USB, Wi-Fi, NFC, Bluetooth | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | PowerShot G7X Mark II | A7R III |
|---|---|---|
| Travel | — | |
| Casual | — | |
| Vlogging & Video | ||
| Street | ||
| Portrait | ||
| Landscape | ||
| Wedding | — | |
| Sports | — |
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