Quick verdict. I would choose HERO11 Black when flexible reframing and 5.3K capture are the priorities. I would choose Action 3 for its front touchscreen, quick-release workflow and a well-priced complete kit. Both are older action cameras; neither is a universal winner for battery life, heat or low-light recording.
HERO11 Black here means the full-size model, not HERO11 Black Mini. Action 3 is also a different camera from the modular DJI Action 2. Keep those identities clear when comparing specifications, batteries, mounts and used listings. The right older kit depends on the files you need and the accessories already available to you.
Action 3 and HERO11 Black: key differences
| Buying detail | DJI Osmo Action 3 | GoPro HERO11 Black |
|---|---|---|
| Sensor | 1/1.7-inch; 12 MP photographs | 1/1.9-inch; 27 MP photographs |
| Maximum main video formats | 4K at 120 fps | 5.3K at 60 fps; 4K at 120 fps |
| Reframing approach | Choose orientation; use appropriate vertical mounting | Tall 8:7 recording in supported modes |
| Front screen | Touchscreen | Colour display, not a front touchscreen |
| Stabilisation system | RockSteady and supported horizon modes | HyperSmooth 5.0 and supported horizon modes |
| Body depth rating without housing | 16 m, subject to DJI conditions | 10 m, subject to GoPro conditions |
| Battery | Removable | Removable |
| Companion app | DJI Mimo | GoPro Quik |
Resolution and aspect ratio: choose for the edit
HERO11 Black records up to 5.3K/60 and supports a tall 8:7 capture format in specified modes. That can be useful when one recording needs both a landscape edit and a vertical social clip. The maximum resolution and maximum frame rate are not available in every aspect ratio at once.
Action 3 reaches 4K/120. That is useful for slowing action in a suitable edit, but a high frame rate needs adequate light and increases file and processing demands. For vertical work, use its appropriate mounting arrangement rather than assuming its sensor provides the same 8:7 reframing workflow.
Neither camera records 8K video. More pixels do not guarantee a better result after heavy stabilisation, a poor exposure or a dirty lens. Match the recording mode to the final film and the computer or phone you will edit on.
Do not reverse the sensor-size comparison
The fractional sensor labels are easy to misread: Action 3’s 1/1.7-inch format is larger than HERO11 Black’s 1/1.9-inch format. HERO11 has more photograph pixels; it does not therefore have the larger sensor.
That still does not settle low-light performance on its own. Exposure, processing, movement, stabilisation and the chosen recording mode all matter. I would avoid promising a low-light winner without matching scene conditions and current settings.
Electronic stabilisation crops and processes the image. Horizon locking or levelling also has resolution, frame-rate and field-of-view conditions. Confirm the supported combination rather than expecting maximum resolution, the widest view and full horizon correction simultaneously.
Screens, mounting and filming yourself
Action 3 has front and rear touchscreens. HERO11 Black’s front screen helps framing but is not a second touchscreen. That difference can make Action 3 more convenient when you are facing the lens and want to change a setting.
Check quick-release parts and any vertical frame included with an Action 3 listing. A magnetic or clip attachment still needs correct engagement; inspect the latch and mounting parts rather than assuming the camera is secure because it appears attached.
GoPro’s accessory ecosystem is useful if you already own compatible equipment, but compatibility is model-specific. Battery doors, protective housings, Media Mods and microphone adapters are not universal. Add essential extras to the price before comparing bundles.
Water ratings, heat and battery claims need conditions
DJI rates Action 3 to 16 m without a housing under its specified conditions; GoPro rates HERO11 Black to 10 m. Check doors, seals, lens protection and the manufacturer’s water-use guidance. Deeper diving needs the appropriate rated housing, and neither body rating guarantees protection against every pressure or impact.
Both use removable batteries, which is helpful for longer outings. Do not compare their longest advertised runtime at different resolutions and assume one always lasts longer. Battery age, temperature, airflow, stabilisation and recording mode change usable duration.
High-resolution static recording in warm conditions can create heat limits on either camera. Plan important sessions with adequate airflow where appropriate, spare power and a tested recording setup. There is no sound basis for promising unlimited recording from a battery specification alone.
Audio, apps and cost beyond the camera
Built-in microphones can cover casual clips, but wind and mounting position affect intelligibility. An external microphone can require a model-specific adapter, receiver or media accessory. Check the connection and monitoring workflow you actually need.
DJI Mimo and GoPro Quik have different activation, update, transfer and editing workflows. Check current phone support and distinguish free camera operation from optional paid services. A subscription is not automatically required just to record footage on a memory card.
Use a supported microSD card suitable for the selected mode. Copy the original files and test playback in your editor, especially for demanding codecs or higher bit-depth modes. A phone preview does not prove the full-resolution file will edit smoothly.
Value, ownership and my final choice
I favour HERO11 Black for an editing-led buyer who will use the tall sensor format and 5.3K files. I favour Action 3 for a simpler front-screen and mounting workflow when a sound, complete kit is cheaper. Neither choice needs invented customer consensus or guaranteed endurance to make sense.
Before buying used, inspect the lens cover, screens, seals, ports, mounts and battery. Confirm returns and included accessories with the actual merchant. For the previous generation’s different trade-offs, see Action 2 vs HERO10 Black; do not carry its specifications over to these models.
Frequently asked questions
Which has the larger sensor?
Action 3 uses a 1/1.7-inch format; HERO11 Black uses 1/1.9-inch. HERO11 has more photo pixels, but that does not make its sensor physically larger.
Which is better for vertical and landscape edits?
HERO11 Black’s supported 8:7 recording modes provide useful reframing flexibility. Action 3 uses an appropriate vertical mounting arrangement for portrait capture.
Do both have a front touchscreen?
No. Action 3 has a front touchscreen; HERO11 Black has a front colour display that is not touch-operated.
Which can go deeper without a housing?
The manufacturers rate Action 3 to 16 m and HERO11 Black to 10 m under specified conditions. Follow the exact sealing, use and housing guidance.
Which battery lasts longer?
There is no universal answer across all modes and conditions. Compare the same recording setup and consider battery age, heat and airflow.
Is a subscription required to record video?
No subscription should be assumed necessary for ordinary memory-card recording. Optional app, cloud and editing services have their own current terms.
Does either shoot 8K?
No. Action 3 reaches 4K/120; HERO11 Black reaches 5.3K/60 and 4K/120 in supported formats.
Sources and image credits
DJI Action 3 manual and specifications; DJI Action 3 setup guide; GoPro HERO11 Black specifications; Product photograph: existing Pixoneye Action 3 coverage.
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Stuart Kerr Spindlow is Pixoneye’s Publisher, Editor-in-Chief and Lead Product Reviewer. He tests consumer products and leads coverage of practical gadgets and personal-media preservation. His reviews focus on usability, limitations, value and the trade-offs that matter when choosing a product. Read Stuart’s full profile.
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