Fast Answer for Busy Riders ⚡ (TL;DR)
The HIBOY S2 Max takes the overall win here, mainly thanks to its significantly longer real-world range and stronger motor that simply make daily commuting easier and more flexible. It goes further, climbs better and feels more capable when you're covering serious distance, even if some of its "budget brand" rough edges show through on closer inspection.
The NIU KQi2 Pro is the better choice if you care more about polish, brand maturity, and a calmer, confidence-inspiring ride than you do about maximum range. It's a very solid, simple commuter for shorter urban hops where charging every day isn't a problem. If you want the most capable scooter for actually replacing public transport, read on for why the S2 Max edges ahead - and where both of them cut corners.
Stick around: the devil, as always, hides in the details - and in this case, in how these two behave after a few dozen kilometres of real-world abuse.
You'd think the "serious commuter" segment of electric scooters would have settled down by now: mature products, clear winners, everyone happy. Instead, we have two brands trying to pull you in opposite directions. On one side, NIU with the KQi2 Pro - the sensible, grown-up commuter that looks like it's on its way to an office job. On the other, HIBOY's S2 Max - the range-hungry pretender promising big mileage and big value with slightly louder marketing.
I've spent many days riding both: dragging them into lifts, up ramps, across cobbles, and into the sort of potholes that should probably have their own postcode. One scooter keeps life pleasantly uneventful; the other stretches your daily reach in a way that's hard to ignore.
Think of the NIU KQi2 Pro as the neat, conservative commuter for shorter, predictable routes - and the HIBOY S2 Max as the "I'm not touching the charger all week" option for riders who like to roam. Let's break down where each one shines, and where the marketing gloss starts to crack.
Who Are These For, and Why Compare Them?
Both scooters live in that "serious but still vaguely affordable" space. They cost well under the price of a premium dual-motor monster, yet promise grown-up daily usability rather than rental-scooter misery.
The NIU KQi2 Pro targets riders who want a simple, robust city tool: home-office-gym, mostly on decent tarmac, with distances comfortably under the length of a half-marathon. It's for people who value reliability, a known brand, and a calm riding experience over raw numbers.
The HIBOY S2 Max aims higher on capability. It goes after commuters with longer round trips, hillier cities and a bit more impatience at traffic lights. It's pitched as the budget long-range alternative to the Segway Ninebot Max - more distance, more grunt, still theoretically "portable".
They compete because, while the spec sheets look quite different, the actual decision many riders face is simple: "Do I buy the polished but modest NIU, or gamble on the longer-range HIBOY that promises bigger performance for similar money?"
Design & Build Quality
Side by side, the different design philosophies are obvious. The NIU KQi2 Pro looks like it was designed by someone who's actually had to live with a scooter. Clean lines, cables largely hidden, a distinctive "neck" and that halo headlight that wouldn't look out of place on a small EV. The frame feels like one solid piece; when you lift it, nothing twitches or rattles in protest.
The HIBOY S2 Max goes for a more industrial, rental-scooter-meets-aftermarket look: matte black, a bit of orange detailing, and a cockpit that screams "function first, aesthetics later". To its credit, the frame itself is decently stiff and the stem doesn't feel flimsy, but the overall impression is more "cost-optimised" than "beautifully resolved". You notice little compromises - cable routing that's almost clean but not quite, plastics that do the job but don't exactly whisper premium.
Ergonomically, both get the basics mostly right. The NIU's wide bars and tidy integrated display feel considered and mature - you step on and it just feels natural. The HIBOY's larger display is easier to glance at, but the cockpit has that slightly generic, OEM feel you'll recognise if you've ridden enough budget scooters.
If you care what your scooter looks like parked outside a café, the NIU wins this one. The HIBOY looks fine - just fine - but the NIU looks like a product; the HIBOY looks like a platform with parts added until the spec sheet looked impressive enough.
Ride Comfort & Handling
Neither of these scooters has "real" suspension in the way a dual-spring, arm-swinging big boy does, so both rely heavily on tyre volume and geometry.
The NIU KQi2 Pro runs on large, tubeless air tyres that take the buzz out of typical city tarmac surprisingly well. On half-decent roads, it glides in that relaxed, "I could do this all week" way. The wide handlebars give you plenty of leverage, and the low deck keeps your centre of gravity reassuringly close to the ground. After a few kilometres of mixed pavements and bike paths, you arrive more mentally relaxed than physically punished.
The HIBOY S2 Max also uses big pneumatic tyres, and they do a lot of heavy lifting. On smooth roads, it's genuinely plush for a scooter in this class. Hit expansion joints or the odd crack and it shrugs them off. But as the surface deteriorates - patchy asphalt, shallow potholes, rougher cobble sections - you start to feel the limitations. The chassis feels a touch harsher and more "busy" than the NIU; it's less skittish than a solid-tyre scooter, but it doesn't quite reach the same "all-day easy" calm as the NIU's setup.
Handling-wise, the NIU is the more confidence-inspiring at moderate speeds. That wide bar and planted stance make quick directional changes feel controlled rather than twitchy. The HIBOY feels fine in a straight line and stable at its top speed, but its steering feedback is slightly less polished - not dangerous, just less refined. On wet or dusty surfaces, both benefit hugely from their tyre size; grip is good enough that it's usually your own courage that runs out first.
Performance
This is where the HIBOY S2 Max starts to flex a bit. Its motor has a clear advantage in power. From a standstill or rolling start, it pulls more decisively, gets you to its top speed noticeably quicker and keeps that pace even when the road tilts upwards. In city riding, that extra punch is exactly what you feel when trying to get clear of traffic at a green light or tackling a serious bridge ramp without your speed collapsing.
The NIU KQi2 Pro, with its more modest motor, is best described as "adequate but never exciting". The 48 V system helps - it doesn't feel as gutless as many low-voltage commuters - and the rear-wheel drive gives nice, composed traction. But you won't mistake it for a powerhouse. On flat ground it cruises at a sensible urban pace and feels well within its comfort zone. Once the hills appear, you start negotiating with gravity. For moderate inclines it copes; for steep ones, particularly with a heavier rider, it becomes more of a "patiently chugging" experience.
Top speed on both sits in the sweet-spot range for European city commuting: quick enough to mix with bikes and slower urban traffic without being ludicrous. The HIBOY's slight edge here shows up more in how it sustains its cruising speed over distance and gradients than in raw number bragging rights.
Braking is an interesting comparison, because on paper they're similar: drum up front, electronic regen at the rear. In practice, the NIU's setup feels more progressive and predictable; you can rely on regen for gentler slowing and call on the drum when you really need to bite, with no drama. The HIBOY's regen can feel abrupt until you learn its behaviour or tame it via the app. It certainly stops, but it doesn't do so with the same refinement; the NIU feels more "sorted", the HIBOY more "effective but a bit binary".
Battery & Range
If performance is where the HIBOY starts winning, range is where it plants the flag and starts building a small village around it.
The S2 Max's battery is substantially larger, and you feel that in real use. For a reasonably brisk rider mixing bike paths and city streets, getting well into the mid-thirties of kilometres without worrying about a socket is normal. Ride a bit more gently, avoid endless hills, and you can push further. The key point is psychological: you stop checking the battery icon every ten minutes and start planning your day as if the scooter will simply cope - because it usually does.
The NIU KQi2 Pro is honest rather than heroic. In typical use at full city pace, you're realistically looking at a comfortable mid-twenties in kilometres before you start doing mental maths about getting home without crawling. For many commuters with shorter, predictable routes, that's absolutely fine - especially if you charge daily. But if your rides are longer, or you're the kind of person who spontaneously detours for "one quick errand" that becomes five, you'll reach its limits more often.
Both charge in roughly an overnight window. The NIU's smaller battery and gentler charging rate are kind to cell longevity, but you do pay for that with slightly "is it done yet?" charge times from empty. The HIBOY's charger has more work to do, so full fills also take time. Neither is fast-charging; these are plug-it-in-and-forget machines.
On efficiency, the NIU does reasonably well considering its smaller pack, but the HIBOY's extra energy means it can afford to be a little less frugal and still come out far ahead in total distance. If you hate planning around charging, the S2 Max is simply in another league.
Portability & Practicality
Both scooters live in that awkward "technically portable" weight class. You can carry them up a couple of flights of stairs; you just won't be thrilled about it. Into a car boot, onto a train, or up a short station staircase - perfectly manageable. Daily fourth-floor walk-up? Start working on your biceps.
Folding mechanisms are similar in concept: stem latch at the base, hook to the rear fender, grab-and-go. The NIU's latch feels particularly robust and confidence-inspiring, with a nicely engineered safety catch that doesn't get in the way. The HIBOY's design is serviceable and fast, though it has a bit more of that "don't neglect adjustment" feel over the long term. Once folded, both are compact enough to hide under a desk or slide along a hallway wall without becoming household enemies.
In day-to-day practical terms, the NIU wins on the little touches: its stand is sturdy, the deck grip is excellent, and the app actually feels like a finished product rather than an extended beta. The HIBOY counters with cruise control that is genuinely useful on longer, straight runs and slightly better water resistance on paper. But overall, neither is a featherweight; they're "ride most of the time, lift occasionally" scooters.
Safety
Lighting is where NIU clearly outclasses the spec-chasing crowd. That halo headlight isn't just a design flourish; it throws a usable beam without scattering light pointlessly into the sky, and the always-on ring makes you visible even before dusk. Combined with the grippy deck and the wide bar, the whole package radiates "stable grown-up transport" rather than "budget gadget". The rear light and reflectors are well integrated rather than last-minute afterthoughts.
The HIBOY's lighting is... fine. The front lamp is bright enough for urban use, and the active brake light does a decent job of broadcasting your intent to following drivers. Side reflectors tick the legal boxes and help at junctions. It all works, but it feels more compliant than inspired - nothing stands out as exceptional, nothing is glaringly bad either.
On braking safety, as mentioned earlier, both systems are fundamentally sound. The NIU's more progressive feel and low-maintenance drum make it well suited to riders who don't want to fiddle with adjustments. The HIBOY's stronger regen can catch new riders off guard until they adapt, but once dialled in via the app, stopping distances are very respectable.
Stability at speed goes to NIU on feel, even though the HIBOY is the more powerful machine. The KQi2 Pro's wide bar, low deck and tidy geometry make it extremely planted at its top speed. The S2 Max stays stable enough, but it never quite achieves that same effortless, "I could ride one-handed for a second to scratch my nose" confidence, particularly on imperfect surfaces.
Community Feedback
| NIU KQi2 Pro | HIBOY S2 Max |
|---|---|
What riders love
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What riders love
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What riders complain about
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What riders complain about
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Price & Value
Both of these scoots sit in a band where you expect decent materials and engineering, but not miracles. The NIU KQi2 Pro comes in slightly cheaper, and what you're paying for is obvious: brand credibility, refinement, and a product that feels like it's been through more rounds of engineering review than marketing revision.
The HIBOY S2 Max asks for a little more money, but on paper gives you a lot more scooter: bigger battery, stronger motor, more range. If you look only at the spec sheet, it absolutely hammers the NIU on value-per-kilometre. The catch, as so often in this price bracket, is that you're spending less on the invisible things: component quality consistency, long-term parts availability, and after-sales ecosystem.
Over a couple of years of ownership, if you ride a lot of kilometres, the S2 Max's bigger battery and powertrain arguably justify themselves easily. If your daily use is lighter and you value a quietly competent, low-fuss machine, the NIU's slightly lower ticket and more polished execution are appealing - even if its headline numbers look modest.
Service & Parts Availability
This is where brand maturity starts to matter. NIU isn't a fly-by-night logo importer; they're a large mobility company with experience in electric mopeds, dealer networks in many European cities, and a parts pipeline that isn't entirely dependent on one warehouse and a prayer. You're more likely to find someone who knows what a KQi2 Pro is and can actually help you when something eventually wears out.
HIBOY, by contrast, lives mostly online. That's not inherently bad - they've sold plenty of units, and you'll find a healthy stream of user-made tutorials and spares through third parties. But official support can be hit-and-miss, and you're often dealing with email queues rather than a physical shop. If you're comfortable with a spanner and community forums, that's manageable. If you'd rather hand your scooter to a technician and go for a coffee, NIU has the edge.
Pros & Cons Summary
| NIU KQi2 Pro | HIBOY S2 Max |
|---|---|
Pros
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Pros
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Cons
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Cons
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Parameters Comparison
| Parameter | NIU KQi2 Pro | HIBOY S2 Max |
|---|---|---|
| Motor power (rated) | 300 W | 500 W |
| Motor power (peak) | 600 W | 650 W |
| Top speed | 28 km/h | 30 km/h |
| Claimed range | 40 km | 64 km |
| Realistic range (approx.) | 25-30 km | 35-45 km |
| Battery capacity | 365 Wh | 556,8 Wh |
| Battery voltage | 48 V | 48 V |
| Weight | 18,7 kg | 18,8 kg |
| Brakes | Front drum + rear regen | Front drum + rear regen |
| Suspension | None (tyre cushioning only) | None meaningful (tyre cushioning) |
| Tyres | 10" tubeless pneumatic | 10" pneumatic |
| Max load | 100 kg | 100 kg |
| Water resistance | IP54 | IPX4 |
| Charging time | 5-7 h | 6-7 h |
| Approx. price | 464 € | 496 € |
Final Verdict - Which Should You Choose?
There's no escaping it: if you're measuring by commuting capability - how far it goes, how strongly it pulls, how much you can ask of it in a single day - the HIBOY S2 Max is the stronger tool. The extra motor muscle and considerably larger battery put it in a different league for riders covering longer distances or dealing with serious inclines. If your idea of "commute" involves crossing half the city and back without touching a charger, this is the direction you should be looking.
The NIU KQi2 Pro fights back with feel rather than force. It's calmer, more polished, more confidence-inspiring, and backed by a brand that behaves like it expects to see its products on the road for many years. If your daily rides are shorter, mostly flat, and you care more about a well-resolved, low-fuss experience than about maximum range, the KQi2 Pro will quietly do its job - and probably keep doing it while cheaper-feeling rivals start to squeak and sulk.
So, who gets what? If you're a higher-mileage commuter, a heavier rider, or someone who simply doesn't want to think about range every day, the HIBOY S2 Max is the pragmatic winner. If you're a rider who values composure, better backing from the manufacturer, and a scooter that feels more "sorted" even if it isn't a powerhouse, the NIU KQi2 Pro remains a very sensible pick - as long as you can live with its more modest performance envelope.
Numbers Freaks Corner
| Metric | NIU KQi2 Pro | HIBOY S2 Max |
|---|---|---|
| Price per Wh (€/Wh) | ❌ 1,27 €/Wh | ✅ 0,89 €/Wh |
| Price per km/h of top speed (€/km/h) | ❌ 16,57 €/km/h | ✅ 16,53 €/km/h |
| Weight per Wh (g/Wh) | ❌ 51,23 g/Wh | ✅ 33,77 g/Wh |
| Weight per km/h (kg/km/h) | ❌ 0,67 kg/km/h | ✅ 0,63 kg/km/h |
| Price per km of real-world range (€/km) | ❌ 16,87 €/km | ✅ 12,40 €/km |
| Weight per km of real-world range (kg/km) | ❌ 0,68 kg/km | ✅ 0,47 kg/km |
| Wh per km efficiency (Wh/km) | ✅ 13,27 Wh/km | ❌ 13,92 Wh/km |
| Power to max speed ratio (W/km/h) | ❌ 10,71 W/km/h | ✅ 16,67 W/km/h |
| Weight to power ratio (kg/W) | ❌ 0,062 kg/W | ✅ 0,038 kg/W |
| Average charging speed (W) | ❌ 60,83 W | ✅ 85,66 W |
These metrics show how efficiently each scooter converts your money, weight and time into usable performance. Price-per-Wh and price-per-kilometre highlight pure value; weight-related metrics show how much "scooter" you're hauling around for the performance you get. Wh per kilometre reveals energy efficiency, while power and charging metrics tell you how strongly the scooter can accelerate relative to its top speed, how heavy it is for its power, and how quickly you can refill its battery.
Author's Category Battle
| Category | NIU KQi2 Pro | HIBOY S2 Max |
|---|---|---|
| Weight | ✅ Slightly lighter, marginally easier | ❌ Tiny bit heavier |
| Range | ❌ Fine for short commutes | ✅ Clearly longer real range |
| Max Speed | ❌ Just a touch lower | ✅ Slightly higher cruising |
| Power | ❌ Adequate, not thrilling | ✅ Noticeably stronger motor |
| Battery Size | ❌ Smaller pack | ✅ Much bigger capacity |
| Suspension | ❌ Tyres only, no springs | ❌ Tyres only, no springs |
| Design | ✅ Cleaner, more refined look | ❌ Functional, less polished |
| Safety | ✅ Better lighting, stability | ❌ Adequate but unremarkable |
| Practicality | ✅ Great for everyday commuting | ❌ Longer range, but bulkier feel |
| Comfort | ✅ Calmer, more composed ride | ❌ Slightly harsher character |
| Features | ✅ Solid app, OTA updates | ❌ App useful, but rougher |
| Serviceability | ✅ Better dealer, parts access | ❌ Mostly DIY and online |
| Customer Support | ✅ Generally stronger backing | ❌ Mixed reports, slower |
| Fun Factor | ❌ Sensible, a bit tame | ✅ Extra punch adds fun |
| Build Quality | ✅ Feels tighter, more solid | ❌ Sturdy but more generic |
| Component Quality | ✅ More consistent, trustworthy | ❌ More cost-cut corners |
| Brand Name | ✅ Established EV player | ❌ Value-focused budget brand |
| Community | ✅ Strong, moped crossover | ✅ Huge online user base |
| Lights (visibility) | ✅ Halo DRL, very visible | ❌ Functional, less distinctive |
| Lights (illumination) | ✅ Better beam control | ❌ Decent but more basic |
| Acceleration | ❌ Gentle, unhurried | ✅ Noticeably stronger launch |
| Arrive with smile factor | ❌ Competent, not exciting | ✅ Punch and range please |
| Arrive relaxed factor | ✅ Very stable, predictable | ❌ Slightly more demanding |
| Charging speed | ❌ Slower relative to size | ✅ Faster per Wh |
| Reliability | ✅ Strong long-term reports | ❌ Good, but less proven |
| Folded practicality | ✅ Feels more compact, tidy | ❌ Bulkier, more awkward |
| Ease of transport | ✅ Slight edge, nicer balance | ❌ Just that bit clumsier |
| Handling | ✅ Wider bar, more control | ❌ Stable, but less finesse |
| Braking performance | ✅ More progressive, predictable | ❌ Strong but more abrupt |
| Riding position | ✅ Very natural ergonomics | ❌ Fine, slightly less refined |
| Handlebar quality | ✅ Wide, solid, comfortable | ❌ Functional, more generic |
| Throttle response | ❌ Slight safety delay | ✅ Sharper, more immediate |
| Dashboard / Display | ❌ Smaller, more minimal | ✅ Larger, clearer glance |
| Security (locking) | ✅ App lock, stronger brand | ❌ App lock, less deterrent |
| Weather protection | ✅ Good sealing, drum brake | ❌ Slightly lower confidence |
| Resale value | ✅ Better brand residuals | ❌ Budget image hurts resale |
| Tuning potential | ❌ Locked-down, conservative | ✅ More community tinkering |
| Ease of maintenance | ✅ Fewer issues, good design | ❌ More DIY, mixed parts |
| Value for Money | ❌ Great, but less range | ✅ Huge performance per euro |
Overall Winner Declaration
In the Numbers Freaks Corner, the NIU KQi2 Pro scores 1 point against the HIBOY S2 Max's 9. In the Author's Category Battle, the NIU KQi2 Pro gets 26 ✅ versus 13 ✅ for HIBOY S2 Max.
Totals: NIU KQi2 Pro scores 27, HIBOY S2 Max scores 22.
Based on the scoring, the NIU KQi2 Pro is our overall winner. Between these two, the HIBOY S2 Max feels like the scooter that genuinely stretches what your commute can be - the one that lets you wander further, tackle bigger hills and worry less about the next plug socket. The NIU KQi2 Pro, meanwhile, comes across as the better-behaved adult in the room: calmer, more polished, easier to trust long term, but without that extra layer of capability. If I had to live with one as my only city runabout, I'd lean towards the HIBOY for its sheer usefulness, while quietly wishing it had a bit more of NIU's maturity baked in. The NIU is the one I'd recommend to cautious first-timers; the HIBOY is the one I'd actually take if my commute started creeping further across the map.
That's our verdict when we try to stay objective – but hey, riding is mostly about emotions anyway, so pick the one that will make you look forward to your commute every single day.

