KuKirin M4 vs NIU KQi Air X
Side-by-side comparison · Specs, scores & AI verdict
Too close to call — scores within 5 points
Why choose one over the other?
Reasons to choose KuKirin M4
- •Higher top speed of 45 km/h vs 32.2 km/h on the NIU KQi Air X
- •Longer range of 55 km vs 49.9 km
- •Larger 600 Wh battery vs 451 Wh
- •Includes a 12-month warranty vs unspecified warranty
Reasons to choose NIU KQi Air X
- •Much lighter at 11.7 kg vs 23.9 kg
- •Quicker charge time of 5 h vs 6 h
- •Front disc brake vs no front brake on the M4
- •App and OTA support vs no smart connectivity
| Spec | KuKirin M4 | NIU KQi Air X |
|---|---|---|
| ⚡ Drivetrain | ||
| Peak Power | — | 700 W |
| Continuous Power | 500 W ✓ | 350 W |
| Max Torque | 21 Nm | — |
| Top Speed | 45 km/h ✓ | 32.2 km/h |
| Max Incline | 15 ° | 20 ° ✓ |
| Drive Config | — | Rear |
| Dual Motors | ✗ | ✗ |
| 🔋 Battery & Range | ||
| Battery Capacity | 600 Wh ✓ | 451 Wh |
| Amp Hours | 12.5 Ah ✓ | 9.4 Ah |
| Charge Time | 6 h | 5 h ✓ |
| Claimed Range | 55 km ✓ | 49.9 km |
| Cell Chemistry | Li-ion 18650 | Lithium-ion |
| Removable Battery | — | ✗ |
| Regen Braking | — | ✓ |
| 📐 Size & Portability | ||
| Weight | 23.9 kg | 11.7 kg ✓ |
| Max Payload | 120 kg | 120.2 kg ✓ |
| Deck Length | 55 cm | 55.1 cm ✓ |
| Deck Width | 19 cm | 19.1 cm ✓ |
| Ground Clearance | 12 cm ✓ | 7.4 cm |
| Foldable | ✓ | ✓ |
| 🛤️ Ride Comfort | ||
| Wheel Diameter | 10" ✓ | 9.5" |
| Pneumatic Tires | ✓ | ✓ |
| Puncture Resistant | — | ✓ |
| Suspension | None | None |
| Adjustable Susp. | — | ✗ |
| Seat | ✗ | ✗ |
| 🛡️ Safety | ||
| Front Brake | — | Disc |
| Rear Brake | — | None |
| Front Lights | ✓ | — |
| Rear Lights | — | — |
| Turn Signals | — | ✓ |
| IP Rating | IP54 | IP55 |
| Kids' Scooter | ||
| 📱 Tech & Smart | ||
| Companion App | — | ✓ |
| Riding Modes | 3 | — |
| Cruise Control | — | ✓ |
| OTA Updates | — | ✓ |
| NFC Anti-Theft | — | ✓ |
| GPS Tracking | — | ✗ |
| Warranty | 12 months | — |
📝 Our Verdict
The KuKirin M4 is ideal for riders who need higher top speed and longer range with a larger 600 Wh battery and a clear 12-month warranty. The NIU KQi Air X suits commuters prioritizing portability, faster charging, enhanced braking, and smart app/OTA features.




