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 2026-07
$2,890 at Top3DShop. US education resellers such as Afinia list the same arm nearer $3,780, so shop the channel — the spread on this model is unusually wide.
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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RoboMaster S1 vs MG400 — FAQ
Is the RoboMaster S1 or the MG400 cheaper?
The RoboMaster S1 is cheaper at $499, versus $2,890 for the MG400 — a 83% difference.
Which is better, the RoboMaster S1 or the MG400?
The RoboMaster S1 wins on more categories overall (price, payload, precision, speed, and value). Choose the MG400 if its specific strengths match your use case — see our verdict above.
Interested in this robot?
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