Sony

Sony A6400 Mirrorless Camera with 18-135mm Lens Kit

4.6 (54 reviews)
4KUHD1300mAh

Lock-on eye tracking and 4K UHD video from an APS-C sensor make the a6400 the sharpest tool for content creators who can't afford a missed shot.

$1,498.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Sony Alpha a6400 is a 24.2-megapixel APS-C mirrorless body built around two capabilities that define its market position: Real-Time Eye AF and 4K UHD video. The BIONZ X processor is the engine behind both — it handles the continuous phase-detection calculation across 425 AF points covering 84% of the frame fast enough to track a turning face at 11fps burst shooting, and processes 4K video data with enough throughput to deliver clean, low-noise footage without the overheating issues that plagued earlier APS-C 4K implementations. The 18-135mm kit lens spans a genuinely useful 27-202mm full-frame equivalent range, covering street, environmental portrait, and moderate telephoto in a single optic.

This camera is built for the working content creator, travel photographer, and hybrid shooter who needs a capable, portable system that can shift from stills to video without a body change. The 180-degree tiltable touchscreen is not a gimmick — it's a functional solo-recording tool that eliminates the external monitor cost for vloggers and YouTubers. The XGA OLED Tru-Finder electronic viewfinder holds up in bright outdoor conditions where LCD screens wash out. The bundle's inclusion of a dual charger, second NP-FW50 battery, and 664GB card removes the accessory math from the buying decision and gets shooters to a complete, fieldable kit from day one. The absence of IBIS and weather sealing are the body's defining boundaries — shooters who hit those walls regularly should evaluate the a6600 instead.

Key Features

Bundle Includes: Sony Alpha a6400 Mirrorless Digital Camera with 18-135mm Lens (Black), Essential Photo and Video Suite, 664GB Extreme PRO 200MB/s SDXC UHS-I Memory Card, Two-Pack Rechargeable 1300mAh Battery and Dual Charger for Sony NP-FW50 and 40.5mm UV Lens Protection Filter

425 Af Points: The Sony Alpha a6400 mirrorless has higher-precision contrast-detection AF (Fast Intelligent AF) points, with an improved Fast Hybrid AF system features the world's fastest 425 extremely accurate phase-detection AF points that covers 84% of the entire image area for superior auto focusing

Ultra Hd Movies: Press the MOVIE button on your Sony a6400 to start recording beautiful 4K UHD movies notable for their sharpness and lack of visual “noise” in your choice of 60p, 60i or 24p. New improved Fast Hybrid AF provides remarkably fast and accurate auto-focusing and tracking while shooting movies

Touchscreen And Viewfinder: The Alpha a6400 mirrorless camera features a 180-degree fully tiltable LCD touch screen for self-recording. The 180-degree tiltable, 3.0-type LCD flip screen has 921k-dots of resolution that allows for simple and effective framing of selfie-style shooting for both still and video capture. It has a high quality XGA OLED Tru-finder viewfinder to help you hone in on your subjects

BIONZ X Image Processor: Sony’s sophisticated BIONZ X image processor reproduces textures and details in real time as seen by the naked eye. The resulting images in the Sony Alpha a6400 mirrorless camera are remarkably realistic with especially rich tonal gradations and a natural three-dimensional appearance

Specifications

Brand
Sony
Model
A6400 Mirrorless Digital Camera
Lens Included
18-135mm
Autofocus Points
425 phase-detection AF points
AF Coverage
84% of image area
Video Recording
4K UHD (60p, 60i, 24p)
LCD Screen
3.0-type, 921k-dot, 180-degree tiltable touchscreen
Viewfinder
XGA OLED Tru-finder
Image Processor
BIONZ X

Pros & Cons

👍 Pros

  • 425 phase-detection AF points covering 84% of the image area deliver subject acquisition speed that outperforms most cameras in its price class in fast-moving event and wildlife scenarios
  • BIONZ X processor enables clean high-ISO output from the 24.2MP APS-C sensor, producing usable images at ISO 3200-6400 where lesser processors introduce smearing and color noise
  • 4K UHD at 24p, 60i, and 60p gives video shooters cinematic and broadcast frame rate options from a single body — rare versatility at this price point
  • 180-degree tiltable touchscreen enables accurate solo-recording framing without an external monitor, a direct competitive advantage for vloggers and content creators
  • The bundled 664GB SDXC card and dual battery charger eliminate the two most common purchase regrets — storage running out mid-shoot and battery failure — before they happen

👎 Cons

  • The additional 1.2x crop factor in 4K recording further multiplies the APS-C crop, making wide-angle 4K shooting with the kit lens significantly tighter than expected
  • NP-FW50 battery life of approximately 410 shots per CIPA rating is below average for the mirrorless category and will require battery swaps during all-day shoots
  • No in-body image stabilization (IBIS) — optical stabilization relies entirely on lens-side OSS, leaving non-stabilized lenses producing noticeable hand shake at slower shutter speeds
  • The flip screen only tilts vertically — no side-articulation means low-angle and overhead solo-recording angles below hip height require creative workarounds
  • Weather sealing is absent on the a6400 body, limiting its use in rain, dust, or high-humidity environments that sealed bodies like the a6600 handle without concern

Frequently Asked Questions

Exceptional. The a6400's Real-Time Eye AF uses AI-based subject recognition that latches onto a detected eye and holds it through lateral movement, partial occlusion, and subject rotation. For portrait, wedding, and street photographers, this means sharp eyes even when your subject turns or the crowd shifts — a capability that previously required $3,000+ bodies.
The 18-135mm (27-202mm full-frame equivalent) covers wide environmental context at 18mm and compresses nicely for head-and-shoulders portraits at 135mm. For low-light or shallow depth-of-field work, a fast prime (35mm f/1.8 or 50mm f/1.8 OSS) fills the gap the f/3.5-5.6 variable aperture kit lens leaves in dim venues.
The a6400 records 4K (3840x2160) with a 1.2x APS-C crop applied on top of the sensor's existing crop factor, which effectively tightens the field of view at your widest focal lengths. In 1080p, no additional crop is applied, and the Fast Hybrid AF tracking remains fully active.
The tiltable screen flips fully forward for self-recording, and the touchscreen AF lets you tap to set focus on yourself before hitting record. The limitation is the absence of a fully articulating side-hinge mechanism — it flips up only, which makes low-angle solo shots below waist height awkward.
The NP-FW50 is the a6400's most discussed limitation — rated approximately 410 shots per charge (CIPA). The included dual charger and second battery in this bundle directly address that constraint. For wedding or full-day event work, carry both charged batteries and you'll have enough capacity for a typical 8-hour event.