Sony ILCE6400L/B

The a6400's autofocus ranks in the 88th percentile of our database, with 425 phase-detect points covering 84% of the sensor. That's the headline, and it's genuinely impressive. But build quality sits in the 10th percentile with no weather sealing, and there's no in-body stabilization. At $801 USD, it's a killer autofocus machine wrapped in a body that feels its age.

The autofocus is the star here, and it's not close. 425 phase-detect points plus 425 contrast-detect points spread across 84% of the sensor puts this in the 88th percentile of our database. That's better than cameras that cost twice as much. Eye AF locks on and sticks, even when your subject turns away for a second. For street photography or chasing kids around, this is the feature you'll notice every single day.

The 11fps mechanical burst with full autofocus tracking is legitimately fast. You get 24.2MP RAW files with natural color straight out of camera. Video is solid but not spectacular, 4K recording and 1080p at 120fps for slow motion put it in the 68th percentile. The sensor itself ranks in the 82nd percentile, which is respectable. But here's the thing: no in-body stabilization. None. If you're shooting handheld video or using unstabilized lenses, you'll feel it. The electronic shutter drops to 8fps, which is fine but not the headline number Sony wants you to remember.

Stacked against the Fujifilm X-H2S, the a6400 gets absolutely demolished on build quality and video features, but it's also a fraction of the price. The Canon EOS R6 Mark III and Panasonic Lumix S5 II both offer in-body stabilization that the Sony simply doesn't have, and that's a real gap if you shoot handheld video. The Nikon Z5 II brings weather sealing and a better EVF, but its autofocus doesn't touch the a6400's tracking. The OM System OM-1 is the closest philosophical match, small and fast, but it costs significantly more. For pure autofocus performance per dollar, the a6400 still holds its own against cameras released years later.

At $801 USD, the a6400 is priced like a mid-range camera but performs like a high-end one in the areas that matter most. The autofocus alone justifies the price for anyone shooting moving subjects. But you're also paying for a body with no stabilization and no weather sealing. The kit lens keeps the price down, but multiple owners mention swapping it out quickly. If you already have E-mount glass, this is a no-brainer at this price. If you're starting from scratch, factor in another lens purchase sooner rather than later.

The Sony Alpha a6400 sits at a weird crossroads in 2025. Its autofocus system still ranks in the 88th percentile of our database, which is wild for a camera that's been around this long. The 425 phase-detect points cover over 84% of the sensor, and Real-Time Eye AF just works. But then you look at the build quality, 10th percentile, and remember this thing has no in-body stabilization and a battery that's about as average as it gets.

At 292g with the kit lens, this is a camera you'll actually carry. The 24.2MP APS-C sensor delivers clean images, and the 11fps mechanical burst keeps up with fast action. But the lack of weather sealing and that middling battery life mean you'll be thinking twice before taking it into rough conditions. For $801 USD, it's a compelling package if you know exactly what you're getting into.

Skip the a6400 if you shoot handheld video or work in rough conditions. The complete lack of in-body stabilization, 36th percentile, means every bit of camera shake shows up in your footage unless you're on a tripod or gimbal. And with build quality in the 10th percentile and no weather sealing, this isn't the camera for hiking in the rain or shooting on dusty trails. Travel photographers should also think twice, the travel use case scored just 44.8 out of 100 in our testing, dragged down by the battery life and lack of durability.

The Sony a6400 is a specialist disguised as a generalist. If you shoot fast-moving subjects, portraits with eye tracking, or street photography where autofocus speed matters more than anything else, this camera delivers performance that still ranks near the top of our database. The 88th percentile autofocus is the reason to buy it. But the 10th percentile build quality and complete lack of stabilization mean it's not the all-rounder the marketing suggests. At $801 USD, it's a smart buy for the right photographer and a frustrating one for everyone else.