PowerShot G7X Mark IIIvs A7 III

GearFrame · Updated March 2026

Canon PowerShot G7X Mark III Canon PowerShot G7X Mark III (2019) Starting from £749 new Best for Vlogging, content creation & travel video View PowerShot G7X Mark III
VS
Sony A7 III Sony A7 III (2018) Starting from £1699 new Best for All-round photography & video View A7 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.

↓ Full specifications below

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
Genre PowerShot G7X Mark IIIA7 III
Vlogging & Video
9.0
Travel
9.0
9.0
Street
7.0
9.0
Portrait
7.0
9.0
Landscape
7.0
Sports
4.0
Wildlife
7.0
Video
7.0
⚡ Compare specs side by side PowerShot G7X Mark III prices → A7 III prices →

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