NIU KQi Air vs Segway Ninebot Max G3

Both measured by the same tester

Every figure on this page for both scooters is eRideHero’s, recorded on its own protocol with the scooters it buys (eRideHero, Sep 2026). That is the only reason the comparison is worth publishing: a 0.7-mile range gap between two different publications would be noise, while a 0.7-mile gap inside one protocol is a real finding — and the finding is that these two scooters have effectively the same range.

What is not comparable, and what we will not score: reliability, warranty performance, parts availability and ride feel. We hold no data on any of them. The one widely observable fact — that Segway runs the largest service and parts network in the category — is reported as exactly that on the Segway brand page, and NIU’s efficiency record is reported the same way on the NIU page.

What each one is

The NIU KQi Air is an engineering outlier. 26.4 lb, a 350 W motor, 9.5-inch self-healing tubeless tires, no suspension, a manufacturer IP55 rating, a 265 lb payload rating, and 24.2 measured miles at a measured 20.1 mph (eRideHero, Sep 2026). 24.2 miles out of 26.4 lb is 0.92 miles per pound, the best range-per-pound figure in our entire registry. The full write-up is in the NIU KQi Air review.

The Segway Ninebot Max G3 is the completeness play: 54.2 lb, an 850 W motor, 11-inch self-healing tubeless tires, dual disc brakes, dual adjustable hydraulic suspension, a published IPX6 rating, a 286 lb payload rating, and 24.9 measured miles at a measured 28 mph (eRideHero, Sep 2026). Its row in our registry is the only mainstream commuter row with no gaps at all. The detail is in the Segway Ninebot Max G3 review.

Side by side

The NIU KQi 300X sits in the table as the third option, because for a large share of buyers it is the right one: 48.7 lb, 26.8 measured miles and dual disc brakes is more range than either of the two headline scooters at a weight between them.

The 27.8 lb that decides it

26.4 lb is a one-hand carry. 54.2 lb is a two-hands-and-a-pause lift. That sounds like a detail and it is the whole decision, because weight is the specification you pay for every single day rather than once at purchase.

Concretely: a 26.4 lb scooter goes up a flight of stairs without you planning for it, onto a commuter train without a second thought, into an overhead luggage rack, and under a desk with one arm. A 54.2 lb scooter does none of those comfortably. If your commute has a staircase at either end, the KQi Air is not the lighter option — it is the only option that works. Weight and fold size works through what each band means in practice, and the lightweight round-up covers the rest of this class.

The usual trade for that weight is range, and here it barely exists. Both figures are measured rather than claimed, which is the distinction that matters: across the twelve-model claimed-versus-tested study this site is built on, scooters delivered an average of 71% of their advertised range and the worst delivered 53% (Rider Guide, Sep 2026). Neither of these numbers is subject to that haircut, and they are 0.7 miles apart — so on distance the two scooters are interchangeable.

What the KQi Air gives up

Four things, and they are real:

• Suspension: none at all. Not a front fork, not a rear spring. On broken pavement that is felt in your hands and heard through the frame; the Segway runs dual adjustable hydraulic suspension. See suspension explained, and the quiet round-up for what that does to noise.
• Speed: 20.1 mph against 28 mph. Both measured. 20 mph holds a bike lane; 28 mph keeps pace with urban traffic and gives you reserve on a hill.
• Hills: 350 W against 850 W. 350 W is the least hill-capable motor of any scooter we recommend. On a 10% grade with a heavier rider it will crawl. How steep a hill it can climb sets out the wattage thresholds.
• Payload: 265 lb against 286 lb. The KQi Air sits on the industry default with no headroom; a rider near 250 lb with a bag is at the ceiling. See the 250 lb round-up.

On weather the two are closer than they look. The KQi Air carries a manufacturer IP55 rating, which covers dust as well as low-pressure jets; the Segway’s IPX6 is a step above on water and untested on dust. IP ratings and wet weather explains what each digit actually covers.

Which one to buy

NIU KQi Air if you lift the scooter as part of the journey, your route is paved and reasonably flat, and you are comfortably inside 265 lb loaded. Nothing else in our data delivers 24 measured miles at 26.4 lb, and the specification it sacrifices for that — suspension — is the one you can route around by choosing where you ride.

Segway Ninebot Max G3 if the scooter lives on the ground: you ride in rain, your route has hills or broken pavement, you want 28 mph, or you are near the payload ceiling. That describes most buyers, which is why it leads the commuter round-up. Its head-to-head with the NIU KQi 300X is at KQi 300X vs Max G3.

Neither if you want the middle: the NIU KQi 300X measured 26.8 miles — more than either — at 48.7 lb with dual disc brakes, and it is the subject of its own comparison with the Air.