DJI Osmo Action 6 Review

Square sensor and variable aperture

DJI's spec sheet lists a 1/1.1-inch CMOS; the product page calls it square, with 2.4 μm equivalent pixels. DJI does not publish its size in millimetres. The square shape is what enables 4K Custom: 3840×3840 at up to 60 fps, from which a 16:9 and a 9:16 version of the same clip can be cut in the edit. 4K at 100 or 120 fps is available in 16:9, 4:3 and 9:16.

The aperture is the bigger change. In Auto mode the camera works within one of five ranges, from f/2.0–4.0 (the default) to f/2.8–4.0. Large Aperture mode fixes it at f/2.0, and DJI recommends the Starburst setting (f/4.0) for city night scenes brighter than 80 lux. DJI adds that aperture modes can be limited by the shooting mode and by attached accessories.

DJI's focus numbers do not quite line up. The spec sheet gives a focus range of 0.2 m to infinity at f/4.0. The launch press release says the Macro Lens cuts the minimum focus distance "from 35 cm to just 11 cm", and the product page gives 11–75 cm with that lens. Treat 11 cm as a Macro Lens figure, not a property of the bare camera. The Macro Lens is sold separately and is splash-resistant only.

8K is there, with conditions

8K (7680×4320 at 24, 25 or 30 fps) is on DJI's current spec sheet and product page, but it was not in the November 2025 launch press release, and DJI does not say when it was added. The footnote attached to it is long: 16:9 only; stabilisation limited to RockSteady and RockSteady+; field of view limited to Standard, Natural Wide and Wide; Film Tone and Quality Priority unavailable; ISO capped at 12800, or 6400 in D-Log M. Downloading and editing 8K footage in the DJI Mimo app currently works only on iPhone 15 Pro models and later.

In practice that makes 4K at up to 120 fps the top everyday mode, with all aspect ratios available. 10-bit D-Log M works in standard video, Slow Motion and Hyperlapse. DJI lists one maximum bitrate, 120 Mbps, and does not break it down by mode.

Native slow motion goes to 4K at 120 fps (4x) and 1080p at 240 fps (8x). The 960 fps "32x Super Slow Motion" on the product page is, according to DJI's own footnote, interpolated in camera from a 1080p/240 fps clip, not a native frame rate.

Stabilisation and field of view

RockSteady 3.0 and 3.0+ cover most modes, but DJI notes that electronic stabilisation is not supported in Slow Motion and Timelapse. HorizonSteady and HorizonBalancing work in 16:9 at 1080p, 2.7K and 4K, and in 4K Custom, at up to 60 fps. For the Action 5 Pro, DJI's own footnote limits HorizonSteady to 1080p and 2.7K, so HorizonSteady at 4K is new on the Action 6.

The native field of view is 155°. The optional FOV Boost Lens widens it to 182°, though DJI says the actual angle varies slightly with distortion correction and stabilisation. That lens is splash-resistant only, not for diving, and Slow Motion is unavailable while it is attached.

Battery, cold and water

DJI rates the 1950 mAh battery at 240 minutes, recorded at 25 °C at 1080p/24 with RockSteady on and Wi-Fi, voice control, gesture control and both screens off. DJI calls the figure a reference only and adds that battery life may differ in the EU and UK because of local rules on operating temperature; it gives no separate EU figure. At the ends of the operating range, DJI's lab figures under the same settings are 167 minutes at -20 °C and 190 minutes at 45 °C. Charging to 80% takes 22 minutes and to 100% 52 minutes, per DJI, with a PD charger of 30 W or more.

The camera is waterproof to 20 m without a case and to 60 m in the Waterproof Case; DJI gives both an IP68 rating, and its comparison table adds EN13319 certification. One footnote matters for divers: DJI says the shutter/record button is disabled at around 0.14 MPa, roughly 14 m, so recording has to be started before going deeper. DJI also recommends the case for long sessions underwater or strong water impact.