Lumix G9vs A7 IV
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GearScore™ Verdict — Which should you buy?
Wildlife, Sports, Travel — Lumix G9 (2017): The G9 showed that Micro Four Thirds could compete for fast-action stills.
Portrait & Wedding Photography — A7 IV (2021): The full-frame portrait benchmark — 33MP, AI Eye AF, and exceptional skin-tone rendering in a pro-grade hybrid body.
Who should buy what
Lumix G9 (2017)
- Wildlife photographers who want fast burst and long telephoto reach at lower cost
- MFT system users who prioritise stills over video
A7 IV (2021)
- Working photographers who want a reliable full-frame all-rounder
- Portrait, wedding, and event photographers needing 33MP and fast AF
- A7 III owners ready for a major upgrade in resolution, AF, and video
- Hybrid shooters who want 4K/60p and 33MP stills in one dependable body
Quick take: The a7 iv has the highest resolution at 33mp; the lumix g9 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Lumix G9 (2017) | A7 IV (2021) |
|---|---|---|
| Price | £549 | £2,299 |
| Sensor | Micro Four Thirds Live MOS | 33MP Full-frame BSI Exmor R CMOS |
| Resolution | 20.3MP | 33.0MP |
| Video | 4K 60fps, C4K 24fps | 4K/60p oversampled, 10-bit internal, S-Log3, S-Cinetone |
| Autofocus | 225-point contrast-detect DFD | 759-point phase-detect, AI subject recognition |
| Stabilisation | 5-axis IBIS, 6.5 stops (6.0 stops dual IS) | 5-axis IBIS, 5.5 stops |
| Burst Rate | 20fps mechanical, 60fps electronic | 10fps mechanical, 30fps electronic |
| Battery Life | 400 shots (CIPA) | ~580 shots (CIPA) |
| Weight | 658g (body only) | 659g body only |
| Dimensions | 136.9 × 97.3 × 91.6mm | 131.3 × 96.4 × 79.8mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 3.68M-dot | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.04M-dot | 3.0" vari-angle touchscreen |
| Mount | Micro Four Thirds | Sony FE (full-frame E-mount) |
| Memory Cards | 2× SD UHS-II | Dual slots: CFexpress Type A + SD UHS-II |
| Connectivity | Wi-Fi, Bluetooth 4.2, USB-C, HDMI full-size | USB-C (3.2 Gen 2), Bluetooth, Wi-Fi |
Suitability by genre
| Genre | Lumix G9 | A7 IV |
|---|---|---|
| Studio Portraits | — | |
| Outdoor Portraits | — | |
| Wedding & Events | — | |
| Vlogging & Video | — | |
| Landscape | — | |
| Sports & Action | — |
More comparisons with Lumix G9
Camera family history