PowerShot G7X Mark IIIvs OM-3
Canon
PowerShot G7X Mark III (2019)
Starting from £749 new
Best for Vlogging, content creation & travel video
View PowerShot G7X Mark III
OM System
OM-3 (2024)
Starting from £999 new
Best for Travel, outdoor & adventure photography
View OM-3
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.
Travel, Outdoor & Adventure Photography — OM-3 (2024): The ideal mid-range OM System camera — weather sealed, class-leading IBIS, and superb computational features in a compact body.
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
OM-3 (2024)
- Outdoor and adventure photographers who need weather sealing and compact size
- Wildlife and bird photographers wanting improved AF over the OM-5
- Travel shooters who want a rugged, lightweight MFT system
- OM-5 or E-M5 III owners wanting better autofocus without going to the OM-1
Quick take: The om-3 has the highest resolution at 20mp; the powershot g7x mark iii is the most affordable; only the om-3 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | PowerShot G7X Mark III (2019) | OM-3 (2024) |
|---|---|---|
| Price | £749 | £999 |
| Sensor | 20.1MP 1-inch BSI-CMOS | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 20.1MP | 20.4MP |
| Video | 4K/30p, 1080p/120p — no crop in 4K | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | Dual Pixel CMOS AF — fast, reliable, with Eye AF | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | Optical IS — lens-based | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 20fps (with fixed AF/AE) | 10fps mechanical, 30fps electronic with AF |
| Battery Life | ~235 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 304g | 414g (with battery) |
| Dimensions | 105.5 × 60.9 × 41.4mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | No | Yes |
| Viewfinder | None | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.0" fully tilting touchscreen (180° flip for self-facing) | 3.0" fully articulating touchscreen |
| Mount | Fixed 24-100mm equivalent f/1.8-2.8 lens | Micro Four Thirds |
| Memory Cards | Single SD UHS-I slot | Single SD UHS-II slot |
| Connectivity | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack, USB live streaming | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | PowerShot G7X Mark III | OM-3 |
|---|---|---|
| Vlogging & Video | ||
| Travel | ||
| Street | ||
| Portrait | ||
| Landscape | ||
| Sports | — | |
| Wildlife | — |
More comparisons with PowerShot G7X Mark III
Camera family history