The Segway ZT3 Pro scores 6.6 and ranks 4th of 47 in Electric Scooters; the NIU KQi Air X scores 6.0 and ranks 12th of 47 in Electric Scooters. The ZT3 Pro leads on ride hardware, the KQi Air X on weight.
UL 2272 certificate UL-US-2353926-0 names the KQi Air X; EN 17128 AK 50614613 is the second record
Searched: UL Solutions certificate (hosted copy) UL Certipedia Intertek SGS TÜV SÜD CPSC Health Canada
Record: UL Solutions certificate (hosted copy), UL 2272, Ed. 1 (2016-11-21, rev. 2019-02-25), KQi Air, KQi Air X, Jiangsu niu Electric Technology Co., Ltd
Record: UL Product iQ, ANSI/CAN/UL 2272 (FKIS, Electrical Systems for Personal E-Mobility Devices), KQi Air X, KQi Air, Jiangsu niu Electric Technology Co., Ltd
Record: TÜV Rheinland Certipedia, EN 17128:2020, KQi Air; KQi Air X, Jiangsu Niu Electric Technology Co., Ltd
Conflict: store page shows a two-year limited warranty; the ZT3 Pro agreement gives the battery one year
NIUKQi Air X
two years on battery and motor
Same score
FeaturesSegway ZT3 Pro: 8NIU KQi Air X: 8
SegwayZT3 Pro
one-step fold, lights, turn signals, Apple Find My, display, IPX5
NIUKQi Air X
lights, turn signals, app lock, display, IP55, cruise control
Fold: two-step stem fold, not one-step
Not scored for either
ValueSegway ZT3 Pro: —not scoredNIU KQi Air X: —not scored
Social score about the Segway ZT3 Pro and the NIU KQi Air X
SegwayZT3 ProNIUKQi Air X
RedditSegway ZT3 Pro: 6NIU KQi Air X: 6
The NIU KQi Air X reading covers its product line.
SegwayZT3 Pro
Liked
build quality
Complaints
speed cap
rear squeak
Read the full summary
Product. r/ElectricScooters: one owner regrets paying about 850 euros for a 40 km/h cap but calls the quality great; another reports a rear squeak after 30 km (May 2025)
NIUKQi Air X
Read the full summary
Product-line. r/ElectricScooters: an Air X owner likes it but avoids cobblestones for fear of the carbon frame (Oct 2025)|A two-year KQi Air owner calls it a great ride with terrible firmware and features (Mar 2026)|Another calls the KQi Air the most brilliant scooter on sale (Feb 2026)
GoogleSegway ZT3 Pro: 8 (higher)NIU KQi Air X: 7
The NIU KQi Air X reading covers its product line.
SegwayZT3 Pro
Liked
acceleration
hill climbing
Read the full summary
Product.
RiderGuide (measures; unit source not stated, affiliate links) recorded 24.7 mph and 20.5 mi, with the quickest acceleration and climbing of any single-motor scooter it had tested (Sep 2024)
NIUKQi Air X
Read the full summary
Product-line.
ERideHero (earns commissions) rode the KQi Air, the same design with a slightly heavier frame, 400+ mi: 20.1 mph, 24.2 mi at 15 mph and a 12.4 ft stop from 15 mph (Apr 2024); the Air X itself is not tested
YouTubeSegway ZT3 Pro: —not scoredNIU KQi Air X: 6
No usable source for the Segway ZT3 Pro; the NIU KQi Air X reading covers the whole brand.
SegwayZT3 Pro
Nothing recorded.
NIUKQi Air X
Read the full summary
Brand-level.
Electric Scooter Guide (measures, does not always buy; affiliate links) keeps an NIU playlist and calls the KQi Air game-changing in its first look at the Air and Air X (Sep 2023)
AmazonSegway ZT3 Pro: 6 (higher)NIU KQi Air X: 4
The Segway ZT3 Pro reading covers the whole brand; the NIU KQi Air X reading covers the whole brand.
SegwayZT3 Pro
Read the full summary
Brand-level.
Segway's own Amazon store lists its MAX series at 4.2 stars from 526 ratings and its E-series at 4.1 stars from 327 ratings, both on listings shared across models (Oct 2026)
NIUKQi Air X
Read the full summary
Brand-level.
NIU's Amazon store, selling as NIU Tech. and NIU Global, groups its KQi scooters in shared listing families rated 3.3 to 4.1 stars on 10 to 233 ratings (Oct 2026)
Is the Segway ZT3 Pro better than the NIU KQi Air X?
On our scores, the Segway ZT3 Pro is ahead, 6.6 against 6.0. The Segway ZT3 Pro leads on ride hardware (9 against 3), motor (10 against 4) and battery (7 against 5). The NIU KQi Air X leads on weight (10 against 2), verification (8 against 6) and warranty & support (5 against 3).
Which has more safety listings, the Segway ZT3 Pro or the NIU KQi Air X?
The NIU KQi Air X. The Segway ZT3 Pro lists UL 2272 listed; the NIU KQi Air X lists UL 2272 listed and EN 17128 certified.
Which has the longer warranty, the Segway ZT3 Pro or the NIU KQi Air X?
The NIU KQi Air X: 2 Years, against 1 Year.
What do owners say about the Segway ZT3 Pro and the NIU KQi Air X?
Across 3 independent sources scored for both, the Segway ZT3 Pro is ahead on Google and Amazon; Reddit is level.
More electric scooters comparisons
More head-to-heads with these two, plus the full brand comparison.
Scores calculated 19 October 2026 · Products excluded where fewer than two independent sources cover them · Researched and edited by Michael Ambrose · Unbroken Ads LLC · How we score