Lumix G9 IIvs A7S II
Lumix
Lumix G9 II (2023)
Starting from £1499 new
Best for Wildlife, sports & hybrid MFT shooters
View Lumix G9 II
Sony
A7S II (2015)
Starting from £799 new
Best for Low-light video, documentary & available-light filmmaking
View A7S II
GearScore™ Verdict — Which should you buy?
Wildlife, Sports & Hybrid Mft Shooters — Lumix G9 II (2023): Phase-detect AF transforms the G9 II into a genuine MFT all-rounder — the best Lumix MFT camera for both stills and video.
Low-Light Video, Documentary & Available-Light Filmmaking — A7S II (2015): A landmark in mirrorless history — the first Sony with IBIS and internal 4K, its low-light video capability still impresses today at a used-market price.
Who should buy what
Lumix G9 II (2023)
- Stills photographers who want the best MFT camera for sport and wildlife
- G9 owners upgrading to phase-detect AF and improved video specs
- Hybrid MFT shooters who want strong stills and 5.7K video in one body
- Photographers who want the most capable Lumix MFT camera ever made
A7S II (2015)
- Filmmakers and videographers who want legendary low-light performance at a used-price discount
- Documentary shooters working in unpredictable available light conditions
- A7S III shooters who want a second Sony FE body for backup or B-camera use
- Budget-conscious video producers who want full-frame 4K with S-Log at an accessible price
Quick take: The lumix g9 ii has the highest resolution at 25mp; the a7s ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Lumix G9 II (2023) | A7S II (2015) |
|---|---|---|
| Price | £1,499 | £799 |
| Sensor | 25.2MP Micro Four Thirds Live MOS | 12.1MP full-frame BSI Exmor CMOS |
| Resolution | 25.2MP | 12.1MP |
| Video | 5.8K/30p, 4K/120p, C4K/60p, V-Log | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 |
| Autofocus | Phase-detect AF with subject/face/eye detection | 169 phase-detect + 25 contrast AF — limited by modern standards |
| Stabilisation | 8-stop IBIS (with OIS lenses) | 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS) |
| Burst Rate | 25fps with AF / 75fps electronic (fixed focus) | 5fps continuous |
| Battery Life | 680 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 658g body only | 584g body only |
| Dimensions | 134.3 × 100.3 × 90.5mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.76" OLED EVF, 3.68M dots | EVF, 2.36M dots, 0.71× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.0" tilting LCD, 1.23M dots |
| Mount | Micro Four Thirds | Sony FE mount (full-frame E-mount) |
| Memory Cards | Dual SD UHS-II | Dual SD UHS-I slots |
| Connectivity | USB-C 3.1, HDMI full-size, Wi-Fi, Bluetooth | USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | Lumix G9 II | A7S II |
|---|---|---|
| Wildlife | — | |
| Sports & Action | — | |
| Vlogging & Video | ||
| Landscape | — | |
| Portrait | ||
| Travel | — | |
| Low Light | — | |
| Wedding | — | |
| Street | — | |
| Sports | — |
More comparisons with Lumix G9 II
Camera family history