Head to head · specs cited · drawn to scale
Leica Q3 vs Sony A7 IV
Every spec below is quoted from the makers' official pages — where a figure isn't published we say so rather than guess. Sizes are drawn at true relative scale from published dimensions, and the bag-fit row is computed against our measured bag catalog.
The 3 biggest published differences
- Resolution (MP): the Q3 leads at 60,3 MP (effective); 62,39 MP (total) vs the A7 IV's 33.
- Burst — mechanical: the A7 IV leads at 10 fps (Hi+ continuous drive; shutter type not distinguished on spec page) vs the Q3's Continuous: 2 fps / 4 fps / 7 fps (14 bit), 9 fps / 15 fps (12 bit).
- EVF resolution: the Q3 leads at 5,760,000 dots, 120 fps vs the A7 IV's 3,686,400 dots (0.5-type Quad-VGA OLED).
 Q3 fixed |  A7 IV Sony E | |
|---|---|---|
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Format | 35 mm full-frame | 35 mm full frame (35.9 x 23.9 mm) |
| Lens mount | fixed | Sony E |
| Released | —, not published | —, not published |
| Sensor & Image | ||
| Sensor type | CMOS-Sensor (no low-pass filter) | Full-frame back-illuminated Exmor R CMOS sensor |
| Sensor size | 35 mm full-frame | 35 mm full frame (35.9 x 23.9 mm) |
| Resolution (MP) | 60,3 MP (effective); 62,39 MP (total) | 33 |
| In-body stabilisation | Visual compensation system for photos and video recordings (in-lens; stop rating not published) | 5.5 stops |
| ISO range | Auto ISO 100 to ISO 100 000; Manual ISO 50 to ISO 100 000 | ISO 100 (stills: ISO 100-51200, expandable to ISO 50-204800; movies: ISO 100-51200 equivalent, expandable to ISO 100-102400) |
| Autofocus & Speed | ||
| AF system | Hybrid-AF: combination of contrast metering, depth mapping, and phase comparison metering with AF metering points in the sensor | Fast Hybrid AF (phase-detection AF / contrast-detection AF), 759 phase-detection points (35 mm full frame) |
| Subject detection | Eye/Face/Body Detection, Eye/Face/Body + Animal Detection, Tracking; 315 metering fields | Human (Right/Left Eye Select), Animal (Right/Left Eye Select), Bird |
| Burst — mechanical | Continuous: 2 fps / 4 fps / 7 fps (14 bit), 9 fps / 15 fps (12 bit) | 10 fps (Hi+ continuous drive; shutter type not distinguished on spec page) |
| Burst — electronic | —, not published | —, not published |
| Video | ||
| Max video | C8K (17:9) 8192 x 4320 up to 29,97 fps | 4K 60p (Super 35mm mode only; 4K 24p/30p available in full-frame mode) |
| Codecs / sampling | MP4 (h.265, h.264); MOV (h.265, h.264, ProRes) | XAVC S-I, XAVC S, XAVC HS (MPEG-4 AVC/H.264; XAVC HS uses MPEG-H HEVC/H.265) |
| Recording limit | Video: max. length 29 min | —, not published |
| Viewfinder & Screen | ||
| EVF resolution | 5,760,000 dots, 120 fps | 3,686,400 dots (0.5-type Quad-VGA OLED) |
| EVF magnification | 0.79x at aspect ratio 4:3 / 0.76x at aspect ratio 3:2 | Approx. 0.78x (with 50 mm lens at infinity, -1m-1) |
| Rear screen | 3" TFT LCD, approx. 1,843,200 dots, 384 ppi, aspect ratio 3:2, touch panel | 2.95 inch (3.0-type) TFT, 1,036,800 dots, vari-angle (opening angle approx. 176 deg, rotation angle approx. 270 deg), touch panel |
| Body & Handling | ||
| Dimensions (W×H×D) | 130 × 80.3 × 92.6 mm | 131.3 × 96.4 × 79.8 mm |
| Weight (body) | 743 g | 658 g |
| Weather sealing | Full metal housing: magnesium die-cast, leather covering, protection type IP52 | not published (spec page states only: Anti-Dust System - charge protection coating on optical filter and image sensor shift mechanism) |
| Shutter durability | —, not published | —, not published |
| Power & Storage | ||
| Battery life (CIPA) | 350 shots (based on CIPA standard) | —, not published |
| Battery | Leica BP-SCL6, Lithium-ion, 7.2 V, 2200 mAh | NP-FZ100 |
| Card slots | UHS-II (recommended), UHS-I, SD/SDHC/SDXC memory card | 2 slots: SLOT1 multi slot for SD (UHS-I/II) / CFexpress Type A card, SLOT2 SD (UHS-I/II) |
| Connectivity | ||
| USB | USB 3.1 Gen 2 Type C up to 10 Gbps | USB Type-C (USB-A to USB-C cable supplied is USB 3.2; USB Power Delivery compatible for charging/power), plus Multi/Micro USB terminal |
| Wireless | WLAN 2,4 GHz (IEEE802.11b/g/n) and 5 GHz (IEEE802.11a/n/ac); Bluetooth 5.0 LE | Wi-Fi IEEE 802.11a/b/g/n/ac (2.4 GHz/5 GHz band), Bluetooth Standard Ver. 4.1 (2.4 GHz band) |
| HDMI | HDMI jack Type D | —, not published |
| Price | ||
| Launch price | —, not published | $2,499.99 (US, body only — listed as "Original Price" on Sony's official electronics.sony.com product page) |
| Size, to scale | ||
Front view, drawn at the same scale from each maker's published W×H (mm). | ||
| Smallest bag that fits | ||
| Body + standard zoom | Think Tank Mirrorless Mover 20 V2 Fits body only · View at B&H Photo Video | Think Tank Retrospective 4 V2.0 Fits with 24-105 f/4 · View at B&H Photo Video |
Sources
“Sensor size CMOS-Sensor, 62,39 MP/60,3 MP (total/effective); protection type IP52; Autofocus system Hybrid-AF due to a combination of contrast metering, depth mapping, and phase comparison metering; Viewfinder (EVF) Resolution: 5,760,000 dots, magnification: 0.79x at aspect ratio 4:3; Rechargeable battery (Leica BP-SCL6), 350 shots (based on CIPA standard); USB 3.1 Gen 2 Type C up to 10 Gbps”
“Sensor Type: 35 mm full frame (35.9 x 23.9 mm), Exmor R CMOS sensor. Number Of Pixels (Effective): Approx. 33.0 megapixels. Focus Point: 35 mm full frame: 759 points (phase-detection AF). Continuous Drive Speed (approx. max.): Hi+: 10 fps, Hi: 8 fps, Mid: 6 fps, Lo: 3 fps.”
Spec values are the manufacturers' published figures, compared factually — we don't rank cameras. Fit verdicts are planning estimates from published interior dimensions, not guarantees. See methodology.
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