Head to head · specs cited · drawn to scale
Sony A7 III 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
- EVF resolution: the A7 IV leads at 3,686,400 dots (0.5-type Quad-VGA OLED) vs the A7 III's 2,359,296 dots.
- Resolution (MP): the A7 IV leads at 33 vs the A7 III's 24.2.
- In-body stabilisation: the A7 IV leads at 5.5 stops vs the A7 III's 5.0 stops.
 A7 III Sony E |  A7 IV Sony E | |
|---|---|---|
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Format | full frame | 35 mm full frame (35.9 x 23.9 mm) |
| Lens mount | Sony E | Sony E |
| Released | —, not published | —, not published |
| Sensor & Image | ||
| Sensor type | 35 mm full frame (35.6 × 23.8 mm), Exmor R® CMOS sensor | Full-frame back-illuminated Exmor R CMOS sensor |
| Sensor size | full frame | 35 mm full frame (35.9 x 23.9 mm) |
| Resolution (MP) | 24.2 | 33 |
| In-body stabilisation | 5.0 stops | 5.5 stops |
| ISO range | ISO 100-51200 (stills) | 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 | 693-point phase-detection AF (35 mm full frame); Fast Hybrid AF (phase-detection AF/contrast-detection AF) | Fast Hybrid AF (phase-detection AF / contrast-detection AF), 759 phase-detection points (35 mm full frame) |
| Subject detection | Human eye (Eye AF) | Human (Right/Left Eye Select), Animal (Right/Left Eye Select), Bird |
| Burst — mechanical | 10 fps (Hi+) | 10 fps (Hi+ continuous drive; shutter type not distinguished on spec page) |
| Burst — electronic | —, not published | —, not published |
| Video | ||
| Max video | 4K 30p (3840 x 2160, XAVC S, 100 Mbps) | 4K 60p (Super 35mm mode only; 4K 24p/30p available in full-frame mode) |
| Codecs / sampling | XAVC S, AVCHD (MPEG-4 AVC/H.264) | XAVC S-I, XAVC S, XAVC HS (MPEG-4 AVC/H.264; XAVC HS uses MPEG-H HEVC/H.265) |
| Recording limit | Approx. 29 minutes (continuous movie recording limit) | —, not published |
| Viewfinder & Screen | ||
| EVF resolution | 2,359,296 dots | 3,686,400 dots (0.5-type Quad-VGA OLED) |
| EVF magnification | approx. 0.78x | Approx. 0.78x (with 50 mm lens at infinity, -1m-1) |
| Rear screen | 2.95 inch (3.0-type) wide type TFT, 921,600 dots, tilt up approx. 107 degrees / down approx. 41 degrees, 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) | 126.9 × 95.6 × 73.7 mm | 131.3 × 96.4 × 79.8 mm |
| Weight (body) | 650 g | 658 g |
| Weather sealing | Anti-Dust System: Charge protection coating on optical filter and image sensor shift mechanism | 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) | Approx. 610 shots (Viewfinder) / approx. 710 shots (LCD monitor) (CIPA standard) | —, not published |
| Battery | NP-FZ100 | NP-FZ100 |
| Card slots | 2 slots: SLOT1 SD (UHS-I/II compliant); SLOT2 Multi slot for Memory Stick Duo/SD (UHS-I compliant) | 2 slots: SLOT1 multi slot for SD (UHS-I/II) / CFexpress Type A card, SLOT2 SD (UHS-I/II) |
| Connectivity | ||
| USB | USB Type-C Terminal (SuperSpeed USB (USB 3.1 Gen 1) compatible); Multi/Micro USB Terminal | 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 | Wi-Fi Compatible, IEEE 802.11b/g/n (2.4 GHz band); Bluetooth Standard Ver. 4.1 (2.4 GHz band) | 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 micro connector (Type-D) | —, not published |
| Price | ||
| Launch price | $1,999.99 (body only, USD; listed as "Original Price" on electronics.sony.com product page) | $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 25 V2 Fits with 24-105 f/4 · 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
“Compensation Effect 5.0 stops (based on CIPA standard. Pitch/yaw shake only. With Planar T* FE 50mm F1.4 ZA lens mounted. Long exposure NR off.) TYPE Image Sensor-Shift mechanism with 5-axis compensation (compensation depends on lens specifications)”
“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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