Obstacle Avoidance in DJI Mini 4 Pro Vs Mini 3 Pro – A Detailed Comparison

Obstacle avoidance in modern drones play a very key role when it comes to safety of the drone, no matter what price it costs, quality or brand a certain drone represents, the obstacle avoidance always plays a key role in everything. In this post we are going to compare the obstacle avoidance in latest DJI mini 4 pro drone against its predecessor mini 3 pro’s. Since, the comparison is very detail-oriented we recommend reading the whole post to the very end. Here’s what you need to know:

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DJI Mini 4 Pro Fly More Combo with DJI RC 2, Mini Drone with 4K HDR Video, Under...
DJI Mini 3 Pro (DJI RC) – Lightweight and Foldable Camera Drone with 4K/60fps...
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DJI Mini 4 Pro Fly More Combo with DJI RC 2, Mini Drone with 4K HDR Video, Under...
DJI Mini 3 Pro (DJI RC) – Lightweight and Foldable Camera Drone with 4K/60fps...
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DJI Mini 4 Pro Fly More Combo with DJI RC 2, Mini Drone with 4K HDR Video, Under...
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DJI Mini 4 Pro Fly More Combo with DJI RC 2, Mini Drone with 4K HDR Video, Under...
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DJI Mini 3 Pro (DJI RC) – Lightweight and Foldable Camera Drone with 4K/60fps...
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DJI Mini 3 Pro (DJI RC) – Lightweight and Foldable Camera Drone with 4K/60fps...
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#1 Obstacle Avoidance General Features

(I) DJI Mini 4 Pro

  • Omni-directional Obstacle Sensing – The Mini 4 Pro features advanced obstacle detection and avoidance systems. Equipped with four wideangle vision sensors and two downward vision sensors, it can proficiently detect obstacles in every direction.
  • Improved Video Features – The Mini 4 Pro offers enhanced video capabilities compared to its predecessor.
    Remains Under 250g It stays within the sub250g weight limit, making it ideal for both enthusiasts and professionals.
  • Limitations – Not wellsuited for windy conditions, and it has a fixedaperture camera.

(II) DJI Mini 3 Pro

  • Tri-Directional Obstacle Sensing – The Mini 3 Pro has threedirectional obstacle avoidance sensors, aiding forward, backward, and downward vision. It stops and hovers if it detects an obstacle in its path.
  • LowLight Performance – The Mini 3 Pro delivers impressive lowlight recording due to its sensor.
  • Handy Automated Flight Modes – It includes useful automated flight modes.

In summary, the Mini 4 Pro offers incremental improvements over the Mini 3 Pro, particularly in obstacle avoidance. If you’re a Mini 3 Pro owner, consider upgrading for the enhanced features and safety benefits

#2 How It Works in Mini 4 Pro Vs Mini 3 Pro

Let’s see how obstacle avoidance works in the DJI Mini 4 Pro and the DJI Mini 3 Pro in the following discussion:

(a)  DJI Mini 4 Pro

  • Vision Sensors – The Mini 4 Pro is equipped with four wide-angle vision sensors (front, back, left, and right) and two downward vision sensors. These sensors continuously scan the environment during flight.
  • Obstacle Detection- When an obstacle is detected, the Mini 4 Pro adjusts its flight path to avoid collision. It can sense obstacles up to a certain distance (typically around 30 meters).
  • Precision Landing – The downward vision sensors also aid in precision landing, allowing the drone to land accurately even in challenging conditions.

(b) DJI Mini 3 Pro

  • 3-Directional Obstacle Sensing – The Mini 3 Pro has sensors facing forward, backward, and downward. It detects obstacles in these directions and automatically stops or hovers to prevent collisions. When an obstacle is detected, the Mini 3 Pro calculates a safe path to avoid it. It relies on the downward sensor for precise altitude control during landing.

Both models use a combination of visual data and onboard algorithms to ensure safe flight. Keep in mind that obstacle avoidance is not foolproof, and pilots should still exercise caution and maintain situational awareness. During automated flight modes, if an obstacle is detected, both the DJI Mini 4 Pro and the DJI Mini 3 Pro take precautionary actions to avoid collisions:

  • The Mini 4 Pro adjusts its flight path to avoid obstacles. It can sense obstacles up to around 30 meters away. While the downward vision sensors aid in precise landings even in challenging conditions.
  • The Mini 3 Pro detects obstacles in forward, backward, and downward directions. So, it easily chooses the safest path when an obstacle is detected, it calculates a safe path to avoid collision.

#4 Maximum Obstacle Detection Range

Here are the maximum obstacle detection ranges for each model:

(i) DJI Mini 4 Pro Detection Range: 0.5200 meters & flight speed ≤ 12 m/s⁴

(ii) DJI Mini 3 Pro Detection Range: 0.5200 meters & flight speed ≤ 12 m/s

Note – The Mini 3 Pro has sensors facing forward, backward, and downward, making it the safest Mini to date, but we know that both models offer impressive obstacle avoidance capabilities, allowing you to navigate safely during flights. We hope you got the details about obstacle avoidance in both of these drones. Please leave a comment and let us know about your thoughts on these two flagship drones.

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