Fujifilm X-T100 vs Sony a6100 — Which Is Better?

The Fujifilm X-T100 and the Sony a6100 are both mirrorless cameras released in 2019 for photographers who want a compact body. The a6100 is the lighter carry at 396 g against 448 g, a 52 g difference. Its 120 x 67 x 59 mm frame is narrower than the X-T100's 121 x 83 x 47 mm body, though the X-T100 is slimmer front to back.

The real starting decision is the lens mount. The X-T100 uses Fujifilm X mount and the a6100 Sony E, so each locks you into a different native lens catalogue from day one.

The a6100 is the stronger choice for photographing moving subjects. Its continuous shooting runs at 11 fps against 6 fps for the X-T100, and it offers 425 autofocus points against 91, giving more coverage to track a sprinting dog or a toddler mid-laugh.

For cropping and large prints the two stand level: both deliver 24 megapixels on an APS-C CMOS sensor, so neither gives extra pixels. Neither offers in-body stabilisation, so steady handheld work depends on the lens. The X-T100's electronic viewfinder shows finer detail, with 2,360,000 dots against 1,440,000 in the a6100.

The a6100 gives slow-motion shooters far more room to work with, offering a maximum video frame rate of 120 fps against 60 fps on the X-T100. That doubles the slowdown available when footage is played back at normal speed.

A shared maximum 4K resolution and built-in interval timelapse mean either camera handles everyday filming and day-to-night sequences. The a6100 offers additional recording formats, including XAVC S, while the X-T100 records in MPEG-4 and MOV.

The X-T100's rear LCD has 1,040,000 dots against 921,600 on the a6100, so your playback checks show slightly finer detail when confirming focus on the camera.

Much of the everyday feature set is shared. Each camera has a 3-inch touch LCD that flips out for waist-level or self-framed shots, plus Wi-Fi and Bluetooth for wireless transfer and a built-in flash. Neither includes GPS or weather sealing.

The X-T100's battery is rated at 440 shots against 420 for the a6100, a small lead under their stated test conditions. They use different batteries, an NP-W126s and an NP-FW50, so spares are not interchangeable between the two.

Both take SD, SDHC and SDXC cards in a single slot, and the a6100 also accepts Memory Stick Pro Duo. Each camera supports USB charging, which is handy for topping up from a power bank between locations.