RoboMaster S1 vs MG400: Which Is Better in 2026?
Independent spec-by-spec comparison of the DJI RoboMaster S1 and DOBOT MG400 Desktop Robotic Arm. Real pricing, verified specs, no affiliate bias.
DJI
DJI retail (verified) · Updated 2026-03
DOBOT
Top3DShop (verified) · Updated 2026-03
Payload
0.75 kg
Reach
440 mm
Axes
4
Repeatability
0.05 mm
RoboMaster S1 is 83% cheaper than MG400
Price Comparison
RoboMaster S1
$499
DJI retail (verified)
✓ Lower priceMG400
$2,890
Top3DShop (verified)
The MG400 costs 83% more than the RoboMaster S1.
Winner by Category
Full Spec Comparison
| Spec | RoboMaster S1 | MG400 |
|---|---|---|
| Payload | — | 0.75 kg |
| Reach | — | 440 mm |
| Axes | — | 4 |
| Repeatability | — | 0.05 mm |
Our Verdict
On price, the RoboMaster S1 comes in 479% cheaper than the MG400 — a meaningful gap if budget is the primary constraint.
This is a close match.
Choose the RoboMaster S1 for budget-conscious deployments.
Choose the MG400 for higher payload applications.
Best For
RoboMaster S1
- ✓K-12 STEM
- ✓competitions
- ✓AI learning
- ✓coding education
MG400
- ✓desktop automation
- ✓education
- ✓light manufacturing
- ✓testing
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