Decision tools · Compare
Q3 Monochrom vs A6400
Quick take: The Q3 Monochrom has the highest resolution at 60MP; the A6400 is the most affordable.
16 specs side by side·16 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?
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
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 | Q3 MonochromLeica · 2025 | A6400Sony · 2019 |
|---|---|---|
| Price | £5,900 | £749Best |
| Sensor | 60MP full-frame CMOS, monochrome (no colour filter array) | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 60.0MPBest | 24.2MP |
| Video | 8K/30p, C4K/60p 10-bit, ProRes 422 HQ (FHD) | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Contrast-detect AF with face, eye, body and animal (beta) detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | Digital stabilisation (Visual compensation); no IBIS or optical IS | No stabilisation |
| Burst Rate | 15fps (5fps with AF per frame)Best | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 302 shots (CIPA) | ~410 shots (CIPA)Best |
| Weight | 746g (with battery) | 403g (with battery and card)Best |
| Dimensions | 130.0 × 80.3 × 92.6mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | OLED EVF, 5.76M dots, 0.79x | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" tilting touchscreen, 1.84M dots | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fixed Summilux 28mm f/1.7 ASPH | Sony E-mount |
| Memory Cards | Single SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C 3.1 Gen 2, micro HDMI, Wi-Fi, Bluetooth 5.0 | 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
Q3 Monochrom
A6400
Portrait
2.7/10
6.7/10
Street
6.8/10
7.3/10
Travel
3.4/10
6.9/10
Wedding & Events
3.3/10
5.6/10
Filmmaking
5.8/10
5.1/10
Documentary
5.9/10
6.1/10
Landscape
7.6/10
5.6/10
Casual
2.5/10
5.8/10
Food
3.9/10
6.1/10
Macro
4.5/10
5.2/10
Architecture
7.8/10
5.5/10
Astrophotography
5.6/10
6.0/10
Fun & simple
3.2/10
—
Vlogging & Video
—
6.0/10
Sports & Action
—
6.9/10
Wildlife
—
7.4/10
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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