Hiboy KS4 Pro vs Hiboy S2 Max - Which "Budget Hero" Actually Deserves Your Commute?

Fast Answer for Busy Riders ⚡ (TL;DR)

The Hiboy S2 Max is the more complete scooter for most riders: it rides softer, goes noticeably further on a charge, and feels closer to a "real vehicle" than a gadget. If your daily rides are longer than a quick hop to the bakery or you value comfort and grip, the S2 Max is the safer bet despite its higher price and extra weight.

The Hiboy KS4 Pro makes sense only if your budget is tight and your commute is short, on reasonably smooth tarmac, and you love the idea of never dealing with punctures. It's the "cheap to run, slightly harsh to live with" option.

If you can stretch the budget and don't need to drag it up endless stairs every day, keep reading with the S2 Max in mind. If price and puncture-proof tyres rule your decisions, the KS4 Pro still deserves a close look.

Let's dive deeper and see where each one shines - and where the marketing gloss starts to crack.

Who Are These For, and Why Compare Them?

On paper, the Hiboy KS4 Pro and Hiboy S2 Max are siblings: single-motor, commuter-focused scooters with similar top speeds, similar dimensions, and the same brand DNA of "maximum specs for minimum money". They sit in the budget-to-lower-mid price band where most first-time buyers shop.

The KS4 Pro targets riders who want something a step above rental scooters without stepping into serious-money territory. Think shorter commutes, flat-ish cities, and a strong hatred of inner tubes. The S2 Max aims at the same rider... who got sick of running out of battery and being shaken to bits, and now wants proper range and air-filled tyres without paying premium-brand money.

You would cross-shop these two if you've decided on a single-motor Hiboy but can't decide whether saving cash now is worth sacrificing comfort and range later. That's exactly what we'll untangle.

Design & Build Quality

In the flesh, both scooters clearly share a family tree: matte black frames, orange accents, fairly clean cockpits. From a few metres away, the average passer-by won't know which is which; from the deck upward, though, the S2 Max looks and feels a bit more "grown up". The frame feels slightly beefier, the stem a touch more confidence-inspiring when you start leaning into faster corners.

The KS4 Pro's design language is more "clever budget commuter". It has that slightly lighter, more compact look, with a tidy integrated display and decently managed cabling. In the hands, though, you're reminded it's very much cost-optimised: cast parts and hardware feel adequate, not impressive. Nothing screams disaster, but nothing screams premium either, and you'll want to do that early ritual of checking bolts after your first rides.

The S2 Max, by comparison, has the vibe of Hiboy actually listening to who rides these things daily. The cockpit feels a bit more sorted, the deck rubber has a nicer texture, and overall tolerances feel tighter. It still isn't a luxury scooter - let's not pretend - but it gives off more "commuter tool" and slightly less "big-box gadget". Whether that difference matters to you depends on how picky you are; after a few hundred kilometres, you do start to notice which one ages more gracefully.

Ride Comfort & Handling

This is where the two Hiboys stop pretending to be twins.

The KS4 Pro rolls on solid honeycomb tyres with a rear shock. On fresh asphalt they're fine - almost pleasant, actually. The problem starts the moment your city reminds you it hasn't fixed a pavement since the Cold War. Cracks, manhole lips, and cobblestones all get dutifully forwarded to your knees and wrists. The little rear shock helps with larger hits, but it feels more like a damage limiter than a real comfort feature. After a few kilometres on scruffy sidewalks, you'll know exactly how your fillings are mounted.

The S2 Max goes the opposite way: no meaningful suspension, but chunky air-filled tyres. It's amazing how much difference this simple swap makes. On the same battered routes where the KS4 Pro chatters and vibrates, the S2 Max glides with a soft, rounded feel to impacts. Small cracks and patches almost disappear, and even expansion joints go from "bang" to "thump". You still feel big potholes - this is not a dual-suspension trail scooter - but for typical city abuse the pneumatic tyres win hands down.

Handling-wise, both are predictable. The KS4 Pro feels a bit more nervous on sketchy surfaces because those solid tyres skip rather than mould around imperfections. The S2 Max tracks more securely, leans into corners with more grip, and generally encourages a more relaxed, natural riding style. If you ride more than a handful of kilometres per day, the comfort gap stops being a minor detail and becomes the story.

Performance

Both scooters share a similar headline: a mid-power rear hub motor and a top speed that matches typical European limits. In practice, they don't feel identical.

The KS4 Pro, running on a lower-voltage system, has respectable punch for its price. Off the line it's clearly livelier than rental-grade scooters and will happily pull you out of junctions without feeling anaemic. The acceleration curve is smooth and civilised - no sudden surges - which is kind to new riders but also makes it feel a bit "soft" once you get used to it. At its maximum speed it's stable enough, but on rougher tarmac you do feel every imperfection feeding up into the bars, which doesn't exactly encourage you to push on.

The S2 Max benefits from its higher-voltage architecture. You feel that extra shove especially in the first few metres - it just steps forward more decisively. It isn't a rocket, and nothing here will rip your arms out, but in city traffic that extra urgency when the light turns green is welcome. More importantly, it tends to hold its top speed better as the battery drains, where the KS4 Pro starts to feel a touch more lethargic towards the bottom of the pack.

On hills, both will climb where low-end 250 W scooters embarrass themselves. The KS4 Pro will manage typical bridges and neighbourhood ramps without forcing you to kick, but on longer or steeper climbs you'll notice it labouring. The S2 Max, with its slightly torquier setup, copes better with gradients and heavier riders, slowing down less and feeling less stressed overall. If your city has any meaningful hills, you'll appreciate that.

Braking is also a tale of two philosophies. The KS4 Pro pairs a rear disc with front electronic braking. It stops you, but the disc can squeal or need the occasional tweak, and modulation is only "okay". The S2 Max's front drum plus regen combo is lower drama: enclosed, less fussy, and very predictable once you're used to the slightly abrupt bite of the electronic brake. It's not exotic, but for a daily commuter it's honestly the more sensible setup.

Battery & Range

If there's one reason the S2 Max exists, it's to kill range anxiety in this price bracket. Its bigger, higher-voltage battery simply gives you a different kind of ownership experience.

On the KS4 Pro, real-world riding at full city pace with some hills will get you into the "I should probably charge tonight" mindset surprisingly quickly. For short urban hops and commutes of around 5-10 km each way, it's fine - you can comfortably do a return trip and still have a buffer. Stretch beyond that, ride hard, or add cold weather and a heavier rider, and you're watching the battery gauge more than you'd like. You learn to ride with an eye on the bars, which is not exactly liberating.

The S2 Max, by contrast, lets you relax. Even riding briskly, you can string together much longer days - commute in, run errands, detour via a friend's place - and still roll home without that creeping dread of a push-of-shame. For many riders it genuinely replaces public transport on most days. Lighter or more conservative riders can go several days between charges, which is the kind of convenience that quietly spoils you.

Both charge at roughly similar speeds relative to their size: you plug them in at work or overnight and forget about it. The bigger S2 Max battery naturally takes a bit longer to refill, but you also need to do it less often. From a practical standpoint, if your total daily distance regularly goes beyond a short cross-town jaunt, the S2 Max is in a different league.

Portability & Practicality

Neither of these is a featherweight, and both use the familiar Hiboy folding recipe: quick lever at the base of the stem, hook to latch the bar onto the rear. It works, it's fast, and it's one-handed once you get the muscle memory.

The KS4 Pro wins the "carry me" contest, but only just. It's noticeably lighter when you deadlift it into a car boot or haul it up a short flight of stairs. If you live in a second-floor flat without a lift, it's doable; if you're on the fifth floor, you'll start questioning your life choices fairly quickly. Folded, it's compact enough for under-desk storage or tucking beside you on a train seat without eliciting too many dirty looks.

The S2 Max adds that extra kilo-and-a-bit, and you do feel it. Carrying it up a long staircase or juggling it with shopping bags is not fun. For multi-modal commuters who regularly have to shoulder their scooter, this is the clearest advantage the KS4 Pro holds. On the flipside, the S2 Max feels slightly more planted when rolling the folded scooter by hand - the extra mass and taller tyres make it less twitchy over curb ramps and tiled station floors.

Both have an IP rating that's fine for drizzle and wet roads but not monsoon duty. Both integrate with the Hiboy app for basic locking and customisation, both have decent kickstands, and both slide under an office desk without a fuss. Day-to-day, the real question is: do you carry more than you ride, or ride more than you carry? If carrying dominates, the lighter KS4 Pro has a genuine edge. If riding dominates, the S2 Max gives more back.

Safety

From a safety perspective, there are three big pillars: how you stop, how you see and are seen, and how much grip you have when the road misbehaves.

Braking performance is solid on both, with a slight nod to the S2 Max for predictability and low maintenance. The KS4 Pro's rear disc can deliver strong stops but needs occasional adjustment to stay quiet and free of rubbing. The S2 Max's drum is tucked away from weather and abuse, which means fewer headaches... and fewer "why is my rear wheel hissing?" moments.

Lighting on both is perfectly commuter-grade: handlebar-mounted headlight, rear light that reacts to braking, and additional side visibility elements. In real night riding, neither turns night into day. You'll still want an extra helmet light if you regularly ride on unlit paths. Visibility to others, though, is adequate right out of the box on both scooters.

The biggest safety separator is, again, the tyres. Solid rubber on the KS4 Pro simply gives you less compliance and grip margin on wet patches, painted lines, and rough surfaces. They're predictable as long as you ride within their limits, but when they let go, they let go more abruptly. The air-filled tyres on the S2 Max flex, bite into the surface, and give more feedback before they start to slide. On a dry day at sane speeds, both are fine; in the real, occasionally damp, leaf-strewn world many of us ride in, the S2 Max inspires more trust.

Community Feedback

Price & Value

On sticker price alone, the KS4 Pro undercuts the S2 Max by a healthy margin. For riders with a strict budget ceiling, that's not a small detail. You still get respectable performance, decent lights, app connectivity, and that rear shock - on paper, an impressive package for what you pay.

The S2 Max asks you to pay noticeably more for a scooter that, if you only skim spec sheets, looks similar: same nominal motor rating, same max speed. But the added range, better ride quality, stronger climbing performance and more robust feel do justify the premium if you actually use the scooter as daily transport rather than an occasional toy. Over a couple of years, the better experience every single ride tends to outweigh the initial saving, especially if the alternative has you avoiding longer trips or nursing the battery home.

If your use case is genuinely short and simple - a few kilometres, mostly smooth roads, minimal hills - the KS4 Pro offers good bang for fewer euros. If the scooter is replacing serious chunks of public transport or car mileage, the S2 Max simply behaves more like a dependable vehicle, and that has its own value.

Service & Parts Availability

Both scooters come from the same factory ecosystem, so the service story is broadly similar: online-first support, parts shipped directly, and a large DIY-focused community. That means you won't find a Hiboy service centre on every street corner, but you will find YouTube tutorials for almost any job they can throw at you.

For the KS4 Pro, the most common service tasks are tightening bolts, adjusting the mechanical disc brake, and occasionally chasing creaks from the folding mechanism. None of these are particularly exotic, but they do require a bit of mechanical sympathy. Solid tyres mean you're spared the joy of tyre changes - a rare win.

With the S2 Max, you trade some of that mechanical fiddling for tyre maintenance: you'll eventually face a puncture or two if your local council considers glass an acceptable road surface. Drum brakes and a more robust build tend to mean fewer adjustments elsewhere. Parts - controllers, throttles, lights - are easy enough to source for both, with the S2 Max arguably benefiting from a slightly larger user base in the "serious commuter" crowd.

Pros & Cons Summary

Parameters Comparison

Final Verdict - Which Should You Choose?

If you strip away the marketing language, the choice is pretty straightforward: do you want "cheaper and tougher on your joints", or "more expensive and far kinder to actually live with"?

The Hiboy KS4 Pro makes sense if your rides are short, your roads fairly decent, and your budget absolutely cannot stretch further. It's a capable little workhorse with zero puncture drama and acceptable performance, as long as you accept that comfort and range are compromises, not strengths. For a low-cost office or campus shuttle that won't see huge daily mileage, it does the job.

The Hiboy S2 Max, however, feels like the scooter designed for how people actually end up using these things: longer, faster, more often, and in less-than-perfect conditions. The extra range, smoother ride and more planted handling don't just read better in a spec table - they make every single journey less stressful and more enjoyable. If you're commuting proper distances, tackling real-world roads, or simply want your scooter to feel more like transport and less like a compromise, the S2 Max is the one that will keep you happier longer.

In other words: the KS4 Pro is fine if you're dabbling. The S2 Max is the one you buy if you're serious about actually riding.

Numbers Freaks Corner

These metrics look purely at maths: how much battery, speed or range you get for each euro, kilogram or watt. Lower cost per Wh or per kilometre means better value on paper, while lower Wh per km indicates higher energy efficiency. Weight-related metrics tell you how much scooter you are dragging around for the performance you get. Power-to-speed and weight-to-power ratios hint at how "overpowered" or "underpowered" the hardware is for its top speed. Finally, average charging speed simply reflects how fast each pack fills relative to its size.

Author's Category Battle

Overall Winner Declaration

In the Numbers Freaks Corner, the HIBOY KS4 Pro scores 5 points against the HIBOY S2 Max's 5. In the Author's Category Battle, the HIBOY KS4 Pro gets 16 ✅ versus 31 ✅ for HIBOY S2 Max (with a few ties sprinkled in).

Totals: HIBOY KS4 Pro scores 21, HIBOY S2 Max scores 36.

Based on the scoring, the HIBOY S2 Max is our overall winner. Between these two, the Hiboy S2 Max simply feels more like something you can build your routine around: it rides nicer, goes further, and gives you fewer reasons to worry mid-journey. The KS4 Pro has its charms - especially if you're allergic to punctures and fond of saving money - but it always feels one or two small compromises away from being truly satisfying. If you want a scooter that you'll actually look forward to riding every day rather than just tolerating, the S2 Max is the one that earns that spot in the hallway.

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.