DJI Osmo Action 4 vs 5 Pro vs 6: Find the Right One for You

Three generations of action cameras. Same compact form factor. Very different capabilities. If you're shopping the Osmo Action series at DJIUSA and not sure where to land, here's a breakdown of what each model actually offers — and where the meaningful differences are.

Start Here: What All Three Share

Before getting into what separates them, it's worth noting what the Osmo Action 4, 5 Pro, and 6 have in common. All three use a 1/1.3-inch sensor with 2.4μm pixels, 10-bit color recording, D-Log M support, RockSteady 3.0 and 360° HorizonSteady stabilization, dual touchscreens, and the OsmoAudio™ direct microphone connection for wireless audio without a receiver. They're all waterproof without a case and operate down to -20°C. The shared foundation is strong.

The question is what you need on top of that.

Osmo Action 4 — The Proven Entry Point

The Osmo Action 4 is the camera that defined what a capable, no-compromise action cam looks like at an accessible price. It shoots 4K/120fps, supports a 155° ultra-wide field of view, and is waterproof to 18 meters without a case. Battery life runs up to 150 minutes at -20°C, and fast charging is supported.

Two things stand out specifically about the Action 4 that still hold up today. The magnetic quick-release system with native vertical video support was a practical step forward for solo creators — switching orientations and swapping mounts quickly matters when you're mid-activity. And DJI OsmoAudio™ direct mic connectivity, added via firmware, makes clean wireless audio possible without carrying a separate receiver.

If you're newer to action cameras or shooting mostly standard adventure content — cycling, hiking, skiing, water sports — the Action 4 does everything cleanly and leaves budget for accessories or extra batteries.

Osmo Action 5 Pro — The Low-Light and Battery Upgrade

The Osmo Action 5 Pro raised the ceiling on two specific things: battery life and low-light performance.

Battery life went up 50% compared to the Action 4, reaching up to 4 hours of continuous recording at standard conditions — and up to 3.6 hours at -20°C. For a full ski day, a long dive session, or a marathon trail run, that's the difference between bringing two batteries or one.

The screens were upgraded to OLED high-brightness touchscreens with a 16% larger screen-to-body ratio and a peak rear brightness of 1,000 cd/m². In bright outdoor light, this makes a real difference when framing shots or reviewing footage on location.

The Action 5 Pro also introduced Subject Tracking, which keeps a subject centered in frame without a gimbal — useful for solo setups where you can't adjust camera angle mid-activity. Wireless transfer speeds reach 80 MB/s over Wi-Fi 6.0 (from built-in storage), and USB 3.0 high-speed transfers are supported for getting footage off the camera quickly. The built-in pressure gauge records and displays real-time water depth and altitude, and auto-starts recording when you enter the water.

If low-light shooting — night cycling, indoor events, underwater in murky conditions — or extended battery life is your primary need, the Action 5 Pro is the cleaner upgrade over the Action 4.

Osmo Action 6 — The One That Changes the Camera Itself

The Osmo Action 6 makes a different kind of leap: it's the first action camera with a variable aperture, ranging from f/2.0 to f/4.0. That's not a small spec footnote — it fundamentally changes how the camera handles different shooting scenarios.

In Auto mode, the aperture adjusts to conditions, maximizing light intake in low-light situations. Large Aperture (f/2.0) mode locks it wide open for maximum sensitivity. Starburst (f/4.0) mode uses the narrow aperture to turn point light sources into six-pointed starbursts — useful for night city footage where streetlights and car lights become compositional elements rather than blown-out distractions.

The sensor itself is new: a 1/1.1-inch square CMOS, larger than the 1/1.3-inch in the Action 4 and 5 Pro, with up to 13.5 stops of dynamic range. 8K/30fps recording is supported for 16:9 content, and 4K/120fps is available in 4:3 mode. A new 4K Custom mode lets you shoot first and crop to your preferred aspect ratio in post — useful for creators who distribute across multiple platforms with different framing requirements.

Built-in storage doubles to 50GB, and HorizonSteady now supports in-camera 4K — both upgrades from the 5 Pro. Gesture Control allows hands-free start/stop recording within about 2 meters. Waterproofing extends to 20 meters without a case, and the Waterproof Case pushes that to 60 meters. Cold resistance spans -20°C to 45°C.

The Action 6 is for creators who want the most capable sensor and the most control over exposure — particularly for night shooting, high-contrast environments, or anyone who finds a fixed f/2.8 aperture limiting.

Picking Your Model

If you want a reliable, capable action cam and don't need bleeding-edge specs: Osmo Action 4.

If battery life, OLED screens, and subject tracking matter more than sensor size: Osmo Action 5 Pro.

If variable aperture, a larger sensor, 8K recording, or Gesture Control are on your checklist: Osmo Action 6.

All three are available at DJIUSA, shipped from the US, with the same extensive accessory ecosystem across mounts, filters, cases, and audio gear.