PowerShot G7X Mark IIIvs A7 III
Canon
PowerShot G7X Mark III (2019)
Starting from £749 new
Best for Vlogging, content creation & travel video
View PowerShot G7X Mark III
GearScore™ Verdict — Which should you buy?
Vlogging, Content Creation & Travel Video — PowerShot G7X Mark III (2019): The finest vlogging compact available — pocket-sized 4K, a flip screen, mic input, and USB live streaming in one remarkably capable package.
All-Round Photography & Video — A7 III (2018): Still one of the best all-round cameras money can buy — particularly strong used. The A7 III proved that full-frame doesn't have to mean compromises, and nothing at this price point has meaningfully beaten it.
Who should buy what
PowerShot G7X Mark III (2019)
- Vloggers and content creators who need 4K video, a flip screen, and a mic input in a pocket-sized camera
- Travellers who want the best possible compact video quality without carrying an interchangeable-lens system
- Live streamers who want USB streaming capability built into a compact camera
- Smartphone upgraders who want significantly better video quality in something nearly as pocketable
A7 III (2018)
- Enthusiast photographers upgrading from APS-C for the first time
- Working photographers who need reliable AF and weather sealing
- Anyone who shoots in low light regularly
- Hybrid shooters needing both stills and video performance
Quick take: The a7 iii has the highest resolution at 24mp; the powershot g7x mark iii is the most affordable; only the a7 iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | PowerShot G7X Mark III (2019) | A7 III (2018) |
|---|---|---|
| Price | £749 | £1,699 |
| Sensor | 20.1MP 1-inch BSI-CMOS | 24.2MP Full-Frame Exmor R BSI CMOS |
| Resolution | 20.1MP | 24.2MP |
| Video | 4K/30p, 1080p/120p — no crop in 4K | 4K/30p (6K oversampled), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF — fast, reliable, with Eye AF | Phase-detect, 693 points, real-time Eye AF & animal AF |
| Stabilisation | Optical IS — lens-based | 5-axis IBIS, 5 stops |
| Burst Rate | 20fps (with fixed AF/AE) | 10fps with AF/AE tracking |
| Battery Life | ~235 shots (CIPA) | ~710 shots (CIPA) |
| Weight | 304g | 565g (body, battery, card) |
| Dimensions | 105.5 × 60.9 × 41.4mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | No | Yes |
| Viewfinder | None | EVF, 2.36M dots, 0.78× magnification |
| Screen | 3.0" fully tilting touchscreen (180° flip for self-facing) | 3.0" tilting touchscreen, 921k dots |
| Mount | Fixed 24-100mm equivalent f/1.8-2.8 lens | Sony E-mount |
| Memory Cards | Single SD UHS-I slot | Dual SD (UHS-II slot 1, UHS-I slot 2) |
| Connectivity | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack, USB live streaming | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | PowerShot G7X Mark III | A7 III |
|---|---|---|
| Vlogging & Video | — | |
| Travel | ||
| Street | ||
| Portrait | ||
| Landscape | — | |
| Sports | — | |
| Wildlife | — | |
| Video | — |
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