Head to head · specs cited · drawn to scale
Sony A6400 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 A6400's 2 359 296 dots.
- Weight (body): the A6400 leads at 403 g vs the A7 IV's 658 g.
- EVF magnification: the A6400 leads at Approx. 1.07x (35mm camera equivalent: Approx. 0.70x) with 50mm lens at infinity vs the A7 IV's Approx. 0.78x (with 50 mm lens at infinity, -1m-1).
 A6400 Sony E |  A7 IV Sony E | |
|---|---|---|
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Format | APS-C type (23.5 x 15.6mm) | 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 | Exmor CMOS sensor | Full-frame back-illuminated Exmor R CMOS sensor |
| Sensor size | APS-C type (23.5 x 15.6mm) | 35 mm full frame (35.9 x 23.9 mm) |
| Resolution (MP) | 24.2 | 33 |
| In-body stabilisation | none | 5.5 stops |
| ISO range | Still images: ISO 100-32000 (ISO numbers up to ISO 102400 can be set as expanded ISO range) | 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 | Fast Hybrid AF (phase-detection AF/contrast-detection AF); 425 points (phase-detection) / 425 points (contrast-detection) | Fast Hybrid AF (phase-detection AF / contrast-detection AF), 759 phase-detection points (35 mm full frame) |
| Subject detection | Eye AF (Right/Left Eye Select), Object Tracking, Face Detection (Face Priority in AF; max. number of detectable: 8) | Human (Right/Left Eye Select), Animal (Right/Left Eye Select), Bird |
| Burst — mechanical | Continuous shooting: Hi+: 11 fps, Hi: 8 fps, Mid: 6 fps, Lo: 3 fps | 10 fps (Hi+ continuous drive; shutter type not distinguished on spec page) |
| Burst — electronic | —, not published | —, not published |
| Video | ||
| Max video | XAVC S 4K: 3840 x 2160 (30p, 100M), 3840 x 2160 (24p, 100M) | 4K 60p (Super 35mm mode only; 4K 24p/30p available in full-frame mode) |
| Codecs / sampling | XAVC S: MPEG-4 AVC/H.264, 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 | —, not published | —, not published |
| Viewfinder & Screen | ||
| EVF resolution | 2 359 296 dots | 3,686,400 dots (0.5-type Quad-VGA OLED) |
| EVF magnification | Approx. 1.07x (35mm camera equivalent: Approx. 0.70x) with 50mm lens at infinity | Approx. 0.78x (with 50 mm lens at infinity, -1m-1) |
| Rear screen | 7.5cm (3.0-type) wide type TFT, 921 600 dots, tiltable up by approx. 180 degrees / down by approx. 74 degrees, Touch Panel: Yes | 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) | 120 × 66.9 × 59.7 mm | 131.3 × 96.4 × 79.8 mm |
| Weight (body) | 403 g | 658 g |
| Weather sealing | —, not published | 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. 360 shots (Viewfinder) / Approx. 410 shots (LCD monitor) (CIPA standard) | —, not published |
| Battery | NP-FW50 | NP-FZ100 |
| Card slots | Multi slot for Memory Stick Duo/SD memory card (single slot) | 2 slots: SLOT1 multi slot for SD (UHS-I/II) / CFexpress Type A card, SLOT2 SD (UHS-I/II) |
| Connectivity | ||
| USB | Multi/Micro USB Terminal; USB Power supply: Yes | 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 IEEE 802.11b/g/n (2.4GHz band); Bluetooth Standard Ver. 4.1 (2.4GHz band); NFC (Type 3 Tag) | 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 | —, 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 | Tenba BYOB 9 Camera Insert 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
“Sensor Type APS-C type (23.5 x 15.6mm), Exmor CMOS sensor ... Number Of Pixels (Effective) Approx. 24.2 megapixels ... Focus Point 425 points (phase-detection AF) / 425 points (contrast-detection AF) ... Continuous shooting: Hi+: 11 fps, Hi: 8 fps, Mid: 6 fps, Lo: 3 fps ... Number of Dots 2 359 296 dots ... Supplied Battery One rechargeable battery pack NP-FW50”
“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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