DJI model comparison
Quick answer: Mini 4 Pro is the compact travel decision: under 249 g, O4 transmission, and a 1/1.3-inch 48 MP camera with 4K high-frame-rate options. Air 3 is the framing decision: it is substantially heavier, but its manual documents both a wide-angle and a medium-tele 1/1.3-inch, 48 MP camera. Choose by whether a second optical perspective changes the work you deliver, then buy the individual used unit with the stronger proof record.
Published specification snapshot
This table compares manufacturer-published specifications from the source manuals named below. It is not a promise about used-unit condition, included package contents, current firmware, regional operation, or accessory compatibility.
| Comparison point | Mini 4 Pro | Air 3 |
|---|---|---|
| Published takeoff weight | Under 249 g | 720 g |
| Published max flight time | 34 min standard battery; 45 min Plus battery in supported markets | 46 min |
| Camera configuration | One 1/1.3-inch CMOS, 48 MP camera | Wide-angle plus medium-tele cameras; both 1/1.3-inch CMOS, 48 MP |
| Published video ceiling | 4K up to 100 fps in listed modes | 4K up to 100 fps on wide and medium-tele cameras in listed modes |
| Published transmission | O4 | O4 |
This is a framing decision before it is a specification contest
The most useful Air 3 difference is not simply that it is bigger. Its documentation lists two cameras: a wide-angle camera and a medium-tele camera, both based on 1/1.3-inch, 48 MP sensors. That gives a pilot two perspectives from the same flight position. For estate work, travel storytelling, event coverage, or shots where moving closer is impractical, that can reduce compromise in the edit.
Mini 4 Pro has one documented 1/1.3-inch, 48 MP camera. A single-camera aircraft can be the more disciplined tool when every shot is planned around one field of view and the priority is a small, simple travel kit. It is not sensible to buy Air 3 only to use it as a heavy Mini. Buy it when the medium-tele angle is part of the shot list, not merely a feature to own.
Weight changes the whole travel workflow
The Mini 4 Pro documentation states a takeoff weight below 249 g. Local rules still decide registration and operating obligations, but compact carry weight can change how frequently the aircraft is actually packed, charged, and brought to a location. It also makes condition checks on arms, hinges, propeller mounts, and the small gimbal assembly especially important on a used example.
Air 3 is listed at 720 g. That additional mass belongs in the purchase decision, not just the specification table. Consider the case, batteries, charging route, travel allowance, and the job's wind and setup conditions. A buyer who needs the second camera but consistently leaves the larger kit at home has not made a practical upgrade. The right aircraft is the one the intended workflow can support.
Shared O4 does not mean shared kit compatibility
Both manuals identify O4 transmission, which is helpful context when comparing link technology. It does not establish that a controller, battery, charger, propeller, or other accessory is interchangeable. The aircraft are different product systems and the final compatibility check must use the exact product names and current official support material.
That warning is particularly important in used bundles. Seller wording such as 'controller included' says less than the actual controller model, battery model, charging equipment, and pairing proof. Confirm those fields before checkout. A transparent listing should let the buyer understand what is physically in the box without treating a transmission label as a universal accessory passport.
Compare video modes within a realistic workflow
Mini 4 Pro lists 4K recording up to 100 fps in its supported mode combinations. Air 3 lists 4K up to 100 fps for both documented camera modules. On paper, both can serve projects that need standard 4K and selected slow-motion capture. The meaningful difference is whether the job benefits from changing perspective without moving the aircraft.
Do not convert a frame-rate line into a claim about final image quality. A used aircraft still needs a clean lens, stable gimbal, error-free recording, healthy storage behaviour, and a test clip at the mode that matters to you. If the purchase is for client work, ask for evidence that reflects the actual camera path rather than relying on a generic unboxing image.
Used-buyer checks are different for a dual-camera aircraft
With Mini 4 Pro, check the single camera and gimbal through a power-on cycle, horizon hold, focus behaviour, lens surface, and recorded file. Then inspect the folding structure and the included battery system. The lower purchase risk is not the cheaper sticker; it is a documented unit whose inspection evidence matches the selected aircraft and package.
With Air 3, repeat those checks for both camera perspectives. A wide shot can look normal while a medium-tele path has a gimbal, focus, lens, or recording issue. Ask for confirmation that both modules are covered by the function check. The dual-camera advantage is worth paying for only when both perspectives are verified and useful to the work.
A clean decision rule
Choose Mini 4 Pro when portability, a single high-capability camera route, and a compact field kit are the centre of the job. Keep the buying decision grounded in the exact controller, battery, and condition evidence rather than the general Mini label.
Choose Air 3 when the medium-tele perspective will be used deliberately and the heavier two-camera kit fits the way you travel and shoot. If both models would be flown as a simple wide-angle camera, an inspected Mini 4 Pro may be the more coherent ownership choice.
Questions buyers should settle before checkout
Does DJI Air 3 have two cameras?
Its manual lists a wide-angle and a medium-tele camera, each using a 1/1.3-inch CMOS sensor with 48 MP effective pixels.
Which is lighter, DJI Mini 4 Pro or Air 3?
Mini 4 Pro is listed under 249 g, while Air 3 is listed at 720 g. Always consider the complete case, batteries, and local operating rules as well.
Do shared O4 transmission labels make the accessories interchangeable?
No. Transmission naming is not a compatibility chart. Verify each specific controller, battery, charger, and propeller with current model-specific evidence.