Autonomous dock comparison
Dock 4 is designed for rapid, repeated deployment through automated battery swaps. Dock 3 uses in-dock fast charging and supports the Matrice 4D Series. The right choice depends on mission cadence, payload, site, and budget.
DJI Dock 4 and Dock 3 are not interchangeable mission systems. Battery logistics, aircraft sensors, turnaround targets, electrical load, and environmental limits should be compared together rather than choosing on a single headline number.
| Category | DJI Dock 4 | DJI Dock 3 |
|---|---|---|
| Aircraft | DJI Matrice 5TD | DJI Matrice 4D or Matrice 4TD |
| Energy turnaround | Automated battery swap in 25 seconds; minimum operation interval 45 seconds in controlled testing | In-dock charging; approximately 27 minutes from 15% to 95% at 25° C in controlled testing |
| Maximum flight time | 59 minutes | 54 minutes |
| Maximum hovering time | 55 minutes | 47 minutes |
| Dock operating temperature | −40° to 50° C | −30° to 50° C |
| Dock maximum altitude | 5,000 m | 4,500 m |
| Dock ingress protection | IP56 | IP56 |
| Aircraft ingress protection | IP55 | IP55 |
| Dock weight | 66 kg without battery-compartment batteries or aircraft | 55 kg without aircraft |
| Maximum input power | 2,000 W | 800 W |
| External radio infrastructure | DJI O4 Ground Station required | Integrated transmission; optional relay solutions depend on deployment |
| Mounting-hole pattern | 400 × 400 mm | 400 × 400 mm |
Comparison uses DJI controlled-test figures. Actual mission endurance and turnaround vary by payload, route, environment, firmware, battery condition, and configuration.
Dock 4 earns its advantage when the operation needs rapid relaunch, extended availability during incidents, or repeated flights with minimal ground delay. Dock 3 remains a strong fit for planned inspection cycles where in-dock charging meets the operating schedule.
Emergency response, security, public safety, or persistent monitoring requires the shortest practical turnaround between missions; Matrice 5TD sensor capabilities match the mission; and the site can support the higher electrical load plus O4 Ground Station deployment.
Flights follow predictable intervals, the Matrice 4D or 4TD payload is preferred, existing infrastructure is designed around Dock 3, or charging-based turnaround is operationally acceptable.
A fleet is expanding across mixed sites. Standardize around mission requirements rather than assuming every location needs the same dock generation.
These are the most common procurement questions when comparing the two systems.
DJI Dock 4 automatically swaps aircraft batteries in 25 seconds, while DJI Dock 3 recharges the Matrice 4D Series battery inside the dock.
No. DJI Dock 4 is designed for Matrice 5TD. DJI Dock 3 supports Matrice 4D and Matrice 4TD.
Not necessarily. Dock 4 prioritizes rapid turnaround and continuous response. Dock 3 remains appropriate where one aircraft, charging-based cycles, or Matrice 4D/4TD payload capabilities fit the mission.
DJI states that Dock 4 and Dock 3 use the same 400 × 400 mm mounting-hole pattern. Power, network, O4 Ground Station, clearance, and site-survey requirements still need to be reviewed before replacement.
Sources: DJI Dock 4 specifications, DJI Dock 4 FAQ, and DJI Dock 3 specifications.
Hardware price is only one factor. Aeronestdock can quote freight, installation planning, software, and deployment support for either system.
