Gotrax Flex Ultra vs NIU KQi Air X
Side-by-side comparison · Specs, scores & AI verdict
VS
Too close to call — scores within 5 points
| Spec | Gotrax Flex Ultra | NIU KQi Air X |
|---|---|---|
| ⚡ Drivetrain | ||
| Peak Power | 750 W ✓ | 700 W |
| Continuous Power | 500 W ✓ | 350 W |
| Max Torque | — | — |
| Top Speed | 32.2 km/h | 32.2 km/h |
| Max Incline | 20 ° | 20 ° |
| Drive Config | Rear | Rear |
| Dual Motors | ✗ | ✗ |
| 🔋 Battery & Range | ||
| Battery Capacity | 480 Wh ✓ | 451 Wh |
| Amp Hours | 10 Ah ✓ | 9.4 Ah |
| Charge Time | — | 5 h |
| Claimed Range | 40.2 km | 49.9 km ✓ |
| Cell Chemistry | Lithium-ion | Lithium-ion |
| Removable Battery | ✗ | ✗ |
| Regen Braking | ✓ | ✓ |
| 📐 Size & Portability | ||
| Weight | 27.7 kg | 11.7 kg ✓ |
| Max Payload | 119.8 kg | 120.2 kg ✓ |
| Deck Length | 45.7 cm | 55.1 cm ✓ |
| Deck Width | 22.9 cm ✓ | 19.1 cm |
| Ground Clearance | 11.4 cm ✓ | 7.4 cm |
| Foldable | ✓ | ✓ |
| 🛤️ Ride Comfort | ||
| Wheel Diameter | 14" ✓ | 9.5" |
| Pneumatic Tires | ✓ | ✓ |
| Puncture Resistant | ✗ | ✓ |
| Suspension | Dual | None |
| Adjustable Susp. | ✗ | ✗ |
| Seat | ✓ | ✗ |
| 🛡️ Safety | ||
| Front Brake | Drum | Disc |
| Rear Brake | Drum | None |
| Front Lights | ✓ | — |
| Rear Lights | ✓ | — |
| Turn Signals | ✗ | ✓ |
| IP Rating | — | IP55 |
| Kids' Scooter | ||
| 📱 Tech & Smart | ||
| Companion App | ✗ | ✓ |
| Riding Modes | — | — |
| Cruise Control | ✓ | ✓ |
| OTA Updates | ✗ | ✓ |
| NFC Anti-Theft | ✗ | ✓ |
| GPS Tracking | ✗ | ✗ |
| Warranty | — | — |
