No. The DJI Mini 3 doesn't have obstacle avoidance. Its only sensors point down: a downward vision system and an infrared sensor on the belly, used to hold position at low altitude and to land safely. It can't see obstacles in front, behind, to the sides or above, so it won't stop or steer around a tree, wall or power line. You're the obstacle avoidance.
What sensors does the Mini 3 have?
Two, both on the bottom:
| Sensor | What it does |
|---|---|
| Downward vision system | Holds position without GPS, works best 0.5 to 10 m above the ground, range 0.5 to 30 m |
| Infrared sensing system | Measures height above the ground for precise hovering and landing |
DJI's manual says the infrared system only works at speeds up to 12 m/s. The downward vision system needs a textured surface and decent light, and struggles over water, glass, snow, plain surfaces and in the dark.
What they help with
- Stable hover close to the ground, even with weak GPS.
- Landing Protection during Smart RTH: the drone checks the ground before it lands.
- Indoor or low flights over textured floors and grass.
They don't stop the drone from hitting something it's flying toward.
Is there an obstacle avoidance setting?
No. Drones with obstacle sensing, like the Mini 4 Pro, have a Bypass/Brake/Off setting in DJI Fly's Safety menu. The Mini 3 doesn't, because it has nothing to act on. Return to Home also can't steer around obstacles; it climbs to your RTH altitude and flies home in a straight line. That's why setting RTH altitude above the tallest trees is critical.
How to fly a Mini 3 safely without sensors
- Set RTH altitude above the tallest obstacles at every new location.
- Fly in open areas, away from trees, wires and buildings, especially while learning.
- Keep it in sight. Turn the drone so you can see which way it's moving.
- Fly forward with the camera. Backward and sideways moves are blind.
- Slow down near obstacles. Use Cine mode (6 m/s) for close work.
- Watch for thin branches and wires. They're the most common crash causes, and hard to see on screen.
- Avoid flying over water at low altitude. DJI warns the downward vision system may not work over water, so the drone can't avoid it when landing.
QuickShots and sensing
QuickShots fly the drone automatically, but they don't avoid obstacles either. DJI says to use them only in open areas with no buildings or obstacles along the path, and Boomerang needs at least 30 m of clear radius. See Mini 3 QuickShots.
If you want obstacle avoidance
The Mini 4 Pro has omnidirectional obstacle sensing, Bypass or Brake avoidance, ActiveTrack 360° and Waypoint Flight, still at 249 g with its standard battery. If you'll fly near trees, around buildings or in tight spaces, it's worth the extra cost. See Mini 3 vs Mini 4 Pro and best drone with obstacle avoidance.
Crashed into something?
Check the props, arms and gimbal before flying again. See Mini 3 repair and how to get a drone out of a tree. For how sensing works in general, read how drone obstacle avoidance works.
Flying mostly in open spaces? The DJI Mini 3 is a great value without sensors. Learn the habits in our drone flying tips.
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