Decision tools · Compare
G9 vs A6400
Quick take: The A6400 has the highest resolution at 24MP; the G9 is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
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Verdictwhich should you buy?
G9 — Wildlife, Sports, Travel: The G9 showed that Micro Four Thirds could compete for fast-action stills.
A6400 — Content Creation & Vlogging: The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Who should buy what
G9 (2017)
is the right camera for you if…
- Wildlife photographers who want fast burst and long telephoto reach at lower cost
- MFT system users who prioritise stills over video
A6400 (2019)
is the right camera for you if…
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
Full specificationsthe better value in each row is highlighted
| Specification | G9Lumix · 2017 | A6400Sony · 2019 |
|---|---|---|
| Price | £999 | £749Best |
| Sensor | Micro Four Thirds Live MOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 20.3MP | 24.2MPBest |
| Video | 4K 60fps, C4K 24fps | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | 225-point contrast-detect DFD | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 5-axis IBIS, 6.5 stops (6.0 stops dual IS) | No stabilisation |
| Burst Rate | 20fps mechanical, 60fps electronicBest | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 400 shots (CIPA) | ~410 shots (CIPA)Best |
| Weight | 658g (body only) | 403g (with battery and card)Best |
| Dimensions | 136.9 × 97.3 × 91.6mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 3.68M-dot | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.04M-dot | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Micro Four Thirds | Sony E-mount |
| Memory Cards | 2× SD UHS-II | Single SD UHS-I |
| Connectivity | Wi-Fi, Bluetooth 4.2, USB-C, HDMI full-size | Micro-USB, Wi-Fi, Bluetooth, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
G9
A6400
Portrait
5.5/10
6.7/10
Street
5.3/10
7.3/10
Travel
5.2/10
6.7/10
Wedding & Events
5.5/10
5.6/10
Vlogging & Video
5.1/10
5.8/10
Filmmaking
5.8/10
5.1/10
Documentary
5.7/10
6.1/10
Sports & Action
6.2/10
6.9/10
Landscape
5.6/10
5.6/10
Wildlife
6.5/10
7.4/10
Casual
4.8/10
5.8/10
Food
6.1/10
6.1/10
Macro
7.4/10
5.2/10
Architecture
5.8/10
5.5/10
Astrophotography
5.0/10
6.0/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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