Kugoo KuKirin S3 Pro vs Razor E Prime III - Two Lightweight Scooters, One Tough Choice

KUGOO KuKirin S3 Pro 🏆 Winner
KUGOO

KuKirin S3 Pro

228 € View full specs →
VS
RAZOR E Prime III
RAZOR

E Prime III

461 € View full specs →
Parameter KUGOO KuKirin S3 Pro RAZOR E Prime III
Price 228 € 461 €
🏎 Top Speed 30 km/h 29 km/h
🔋 Range 20 km 24 km
Weight 11.5 kg 11.0 kg
Power 700 W 500 W
🔌 Voltage 36 V 36 V
🔋 Battery 270 Wh 185 Wh
Wheel Size 8 " 8 "
👤 Max Load 120 kg 100 kg
Speed Comparison

Fast Answer for Busy Riders ⚡ (TL;DR)

The Razor E Prime III edges out overall as the more rounded commuter: it feels better built, rides more comfortably thanks to its front air tyre, and inspires a bit more confidence day after day, even if it asks quite a lot from your wallet for what you get. The Kugoo KuKirin S3 Pro fights back hard with brutal value for money, far lower price, a slightly stronger motor and excellent portability, but it cuts corners in refinement, comfort and long-term polish.

Choose the Razor E Prime III if you want a "feels solid, just works" city scooter from a legacy brand, and you mainly ride on decent tarmac with some focus on style and safety. Go for the Kugoo KuKirin S3 Pro if your budget is tight, your rides are short and flat, and you care more about grams and euros than bragging rights or silky ride quality.

If you want to know where each one quietly annoys you after a few hundred kilometres - and where they pleasantly surprise you - keep reading.

Electric scooters in this weight class are all about compromise. Both the KuKirin S3 Pro and the Razor E Prime III promise "real" transport in a package you can carry up stairs without rethinking life choices. I've put decent mileage on both, enough to know where the brochures are optimistic and where the engineering actually delivers.

On one side you've got the Kugoo: cheap, featherweight, puncture-proof and proudly no-nonsense. It's the scooter equivalent of a budget airline - amazing if you accept the terms and don't expect champagne. On the other, the Razor: sleeker, more mature, clearly better finished, but also priced as if good manners cost extra.

Both target the same rider: city commuter, short-to-medium hops, lots of folding and carrying. They just take very different routes to get there. Let's dig into where each one earns its keep - and where corners have been cut a bit too visibly.

Who Are These For, and Why Compare Them?

KUGOO KuKirin S3 ProRAZOR E Prime III

These two sit in the ultra-portable commuter segment: light enough to carry with one arm, fast enough to keep up with bicycles, and just about sensible to park under your desk without HR sending emails.

The KuKirin S3 Pro is the bargain hunter's weapon: minimal budget, minimal weight, maximum "I just want to get from the station to the office without walking". It's best for flat-city riders who treat a scooter as a tool, not a lifestyle item.

The Razor E Prime III aims at the same job but with nicer shoes. It's for riders who'll pay more for a smoother front end, more polished construction and a name brand that your insurance company has actually heard of.

They compete directly because, on paper, they both offer similar speed, similar real-world range and nearly identical weight. In reality, they solve the same problem with very different compromises.

Design & Build Quality

Specs Comparison

Pick up the KuKirin S3 Pro and it feels like a classic Chinese budget commuter: functional aluminium frame, skinny stem, fairly narrow handlebars, visible bolts everywhere. Nothing looks terrible, but nothing screams precision either. The telescopic stem and folding bars are useful, but every extra joint is another rattle waiting to happen, and after a few hundred kilometres you do start to hear the scooter more than you'd like.

The Razor E Prime III, by contrast, feels like it came from a company that has been making scooters since your childhood. The frame is also aluminium but with tighter tolerances, cleaner welds and fewer plasticky bits trying to pretend they're structural. The folding joint has that reassuring "clunk" rather than "crunch", and the anti-rattle design actually does its job: the stem stays quiet even when the pavement doesn't.

Decks tell you a lot about intent. The Kugoo's deck is relatively narrow and business-like, covered in grip tape - fine for short hops, but you're always aware you're standing on something small. The Razor gives you a visibly wider, longer platform with full-deck grip, letting you adopt a more relaxed stance. The Razor also adds a proper lock point in the frame - a tiny feature that matters a lot in real life. The KuKirin lacks that, which means more creative (and often less secure) locking solutions.

In the hand, the Razor wins for perceived quality: fewer creaks, nicer finishing, better grips. The Kugoo counters with adjustability and sheer simplicity, but it does feel built to hit a price target first, and to feel premium... perhaps never.

Ride Comfort & Handling

If your city has smooth bike lanes, both are fine. Start mixing in patched asphalt, tram lines and the odd cobblestone stretch and the differences become pretty obvious.

The KuKirin S3 Pro rolls on small solid tyres front and rear, with basic springs trying bravely to tame the vibrations. Around town on decent tarmac, it's acceptable: you feel connected to the road, in the same way your dentist feels connected to your teeth. After a handful of kilometres on rougher surfaces, the buzz through your feet and hands becomes tiring. The suspension takes the edge off sharp hits like kerb transitions; it does not magically turn solid rubber into comfort.

The Razor E Prime III takes a clever half-way approach: air tyre at the front, solid at the back. Your arms and hands get genuine cushioning from the front, which makes a big difference over cracks and joints. The rear still punches your heels over bigger bumps, but overall the Razor feels more civilised and less fatiguing on mixed city surfaces. The low deck height also helps stability; you feel planted rather than teetering.

Handling follows the same pattern. The KuKirin's narrow bars and tiny wheels make it hyper-nimble in traffic, almost to the point of fidgety at top speed. Fine once you're used to it, but beginners may find it twitchy. The Razor's slightly wider stance and rear-drive layout give it a calmer, more predictable feel when cornering at commuting speeds. If you like quick, darting manoeuvres, the Kugoo is fun; if you prefer planted and composed, the Razor is the more confidence-inspiring partner.

Performance

On paper, the KuKirin S3 Pro has the stronger motor, and you can feel it. That front hub pulls the lightweight chassis up to its top speed with a bit more urgency than you'd expect from a scooter this cheap. In city traffic, it gets you off the line quicker than most rental scooters and happily sits at its limiter on flat ground. Push it onto steeper inclines, though, and you'll quickly discover the limits: lighter riders do okay, heavier riders will be contributing with their legs.

The Razor E Prime III's motor is milder, but the scooter is light enough that it doesn't feel painfully slow. Acceleration is smoother, less "surge then plateau" and more progressive. Top speed is slightly below what the Kugoo can reach when fully unlocked, but not by much; you still move briskly compared with typical shared scooters. The problem appears the moment you point it at a real hill: that rear motor runs out of enthusiasm quite early. Expect to help it on steeper climbs - especially if you're closer to its weight limit.

Where the Razor claws some ground back is stability under power. Rear-wheel drive combined with that low deck makes hard launches feel more controlled. The Kugoo's front-drive setup can feel a touch skittish on wet or dusty surfaces if you ask for full power mid-corner. Not terrifying, but you do need a bit of finesse with your thumb.

Braking is a mixed bag on both. The KuKirin relies on a fairly grabby electronic front brake plus an old-school rear foot brake. Once you've learned to feather the e-brake it stops decently for its class, but the learning curve is real; the first few panic squeezes can be... exciting. The Razor also mixes electronic braking with a fender brake, but with a slightly more refined feel at the lever. Neither of these systems feels like high-end disc brakes; both feel like what they are - lightweight city stoppers that demand anticipation, especially in the wet.

Battery & Range

On spec sheets, the KuKirin claims the bigger battery, and unsurprisingly it goes further per charge. In the real world, ridden briskly by an average-sized adult, the S3 Pro will usually cover a typical there-and-back commute in a flat city with a comfortable buffer, as long as you stay within that roughly fifteen-to-twenty kilometre window. Push beyond that at full speed and you'll face the usual diminishing-power warnings as voltage sags.

The Razor's battery is smaller, and you feel that in daily use. Range figures drift into the low-to-mid teens for heavier riders at top speed, which is fine for most inner-city journeys but leaves less headroom for detours. The scooter gets more lethargic once you drop into the last chunk of capacity; you can feel it giving up some speed to protect the pack.

Both charge in roughly a working morning or evening, and both use compact chargers you can throw in a bag. The KuKirin's advantage is simple: per euro, you're getting more usable distance. The Razor's stance is more "enough range for a normal commute, don't think about it too hard". If you regularly flirt with the upper end of their real-world range, the Kugoo is the less anxious companion. If your round trip is modest, either will do - with the Razor clearly asking you to pay a premium for less battery.

Portability & Practicality

This is where both scooters justify their existence - and where their personalities really show.

The KuKirin S3 Pro is absurdly easy to live with if you're constantly folding and carrying. The weight sits in the low double digits, and thanks to its folding stem and collapsing handlebars it becomes a genuinely compact bundle. I've seen this thing vanish under café tables and into gym lockers where most scooters simply wouldn't fit. Carrying it up several flights of stairs is entirely realistic, even daily, and that makes a massive difference for apartment dwellers.

The Razor E Prime III is only a shade lighter, so in the hand it feels similarly manageable. The difference is in shape: the stem folds, but the bars stay full width. For car boots and under-desk storage that's no problem; for very tight cupboards or crowded train aisles, the Kugoo's narrower folded profile is noticeably easier to handle. On the other hand, the Razor's folding mechanism feels smoother and more confidence-inspiring from day one, without the stiffness and "use a trick you learned on YouTube" moment the Kugoo's latch often needs when new.

For daily commuting practicality: the KuKirin wins on pure compactness and puncture-proof tyres; the Razor wins on little civilised touches like the integrated lock point, better deck, and fewer rattles over time. Both are "grab and go" friendly - the Kugoo just fits into more awkward corners, while the Razor feels less like a DIY kit when you grab it.

Safety

Safety on small, light scooters is always a bit of a compromise, and both of these lean heavily on rider judgement rather than over-engineered hardware.

The KuKirin's solid tyres and light chassis mean grip is adequate in the dry but noticeably more nervous in the wet. The dual suspension helps keep the wheels in contact over imperfections, but you do need to respect painted lines and metal covers when it's raining. Its lighting is actually decent for this price level: a usable front lamp, brake-responsive tail light - good enough in town, though I'd still add a helmet light for serious night riding.

The Razor steps it up marginally. That pneumatic front wheel adds both grip and feedback when things get slick, and the rear-drive layout is inherently more stable under hard acceleration. Lighting is a strong point: the integrated headlamp and brake light are bright and well positioned, and reflective details along the sides help with cross-traffic visibility. Add the fact that the whole electrical system comes with a mainstream safety certification and you get a bit more peace of mind when charging indoors.

Braking, as mentioned, is workable but not stellar on both. Neither has a proper mechanical disc, and both rely partly on a foot-operated rear fender. If you're coming from higher-end scooters, you will miss stronger, more progressive stopping. Within their class, though, the Razor feels slightly better put-together and consistent, while the Kugoo demands more practice to avoid sharp, jerky stops with its electronic front brake.

Community Feedback

KUGOO KuKirin S3 Pro RAZOR E Prime III
What riders love
  • Incredibly cheap for what it does
  • Super light and very compact when folded
  • Zero puncture worries with solid tyres
  • Adjustable stem suits different rider heights
  • Parts are easy to source and cheap
  • Surprisingly quick for such a small scooter
What riders love
  • Very light yet feels sturdy and "grown up"
  • Smooth front-end feel from pneumatic tyre
  • Anti-rattle folding joint stays quiet
  • Handy lock point for real-world parking
  • Strong brand reputation and support
  • Confident top speed for its class
What riders complain about
  • Harsh ride on bad roads, lots of vibration
  • Folding latch stiff and fiddly at first
  • Real range well below marketing claims for heavier riders
  • Rattles develop around folding parts and fenders
  • Jerky feel from electronic brake until you adapt
  • Not great on serious hills
What riders complain about
  • Weak on hills, slows dramatically
  • Real-world range modest for the price
  • Solid rear tyre kicks hard over bumps
  • No speed read-out or fancy display
  • Handlebars don't fold, less compact than it could be
  • Some small parts (port cover, kickstand) feel a bit cheap

Price & Value

Let's not dance around it: the KuKirin S3 Pro is dramatically cheaper. You can almost buy two Kugoo units for the price of one Razor, and that fact colours the entire comparison. For a budget roughly in the low hundreds, you get commuting-grade performance, suspension, lights, and a proper lithium battery. In terms of euros per kilometre, it's hard to beat - especially if you accept that this is a consumable tool rather than a decade-long investment.

The Razor E Prime III asks roughly double that outlay for a smaller battery, weaker motor and similar weight. On a raw spec spreadsheet, it looks like a bad deal. But what you're paying for is refinement: tighter tolerances, better ride feel up front, quieter folding joint, stronger brand backing and safety certifications. Whether that premium is justified depends on how much you value feeling that your scooter is engineered rather than assembled to a cost.

Objectively, in pure "what do I get for each euro" terms, the KuKirin wins by a country mile. Subjectively, if daily frustration and small build shortcuts annoy you more than a thin wallet, the Razor makes a more convincing case than its numbers suggest.

Service & Parts Availability

Kugoo's big advantage is volume. There are a lot of these S3-series scooters out there, which means a healthy aftermarket for tyres, controllers, displays and random plastic bits. In Europe, warehouses and third-party sellers keep most common parts cheap and relatively close. Official customer support exists, but you're often relying on community knowledge and DIY fixes rather than a polished service experience.

Razor, in contrast, operates more like a traditional consumer brand. Parts are available through official channels, documentation is decent, and you can usually get a charger, brake lever or wheel years after purchase. On the flip side, it's less of a tinkerer's scooter: you're not going to find pages of mod guides and cheap hop-up kits. Where the Kugoo survives by being simple and easily patched up, the Razor survives by being better controlled from the factory and backed by a recognisable company.

For Europe specifically, Kugoo's network of local warehouses is a real plus for quick spares. Razor's distribution is decent, but sometimes more focused on mainstream retailers than enthusiast parts channels. If you like to wrench and mod, the Kugoo ecosystem is more fertile. If you prefer emailing support and getting shipped the exact part, Razor has the upper hand.

Pros & Cons Summary

KUGOO KuKirin S3 Pro RAZOR E Prime III
Pros
  • Very low purchase price
  • Light and extremely compact when folded
  • No-flat honeycomb tyres, minimal tyre maintenance
  • Decent acceleration for its class
  • Adjustable stem height for multiple riders
  • Front and rear suspension (basic but helpful)
  • Lively, informative display
  • Strong community and easy access to parts
Cons
  • Harsh, buzzy ride on rough surfaces
  • Folding mechanism stiff and prone to rattles over time
  • Braking feel not very refined
  • Range claims optimistic for heavier riders
  • Front-wheel drive can feel nervous in poor grip
  • Overall finish clearly budget-orientated
Pros
  • Very light yet feels solidly built
  • Pneumatic front tyre improves comfort and grip
  • Anti-rattle folding joint feels premium
  • Integrated lock point for easier security
  • Respectable top speed for its class
  • Sleek, professional design with good lighting
  • Backed by a well-known, established brand
Cons
  • Expensive for the specs offered
  • Shorter real-world range than you'd expect at this price
  • Weak hill-climbing ability
  • Rear solid tyre still transmits plenty of bumps
  • No speedometer or app; very basic cockpit
  • Handlebars don't fold, limiting compactness

Parameters Comparison

Parameter KUGOO KuKirin S3 Pro RAZOR E Prime III
Motor power (rated) 350 W front hub 250 W rear hub
Top speed Up to 30 km/h (region-dependent) Up to 29 km/h
Claimed range 30 km 24 km
Real-world range (approx.) 15-20 km 15-18 km
Battery capacity 36 V 7,5 Ah (≈270 Wh) 36 V 5,2 Ah (≈185 Wh)
Weight 11,5 kg 11,0 kg
Brakes Front electronic + rear foot brake Electronic thumb brake + rear fender brake
Suspension Front spring + rear spring No dedicated suspension
Tyres 8" solid honeycomb front & rear 8" pneumatic front, 8" solid rear
Max load 120 kg 100 kg
Water resistance IP54 Not formally stated / basic splash resistance
Typical price ≈228 € ≈461 €

Final Verdict - Which Should You Choose?

Both of these scooters nail the basic brief: light, foldable, quick enough and genuinely useful as "last-mile" machines. But they approach that brief from opposite ends of the value spectrum.

The KuKirin S3 Pro is the rational choice if your budget is tight or you simply refuse to pay more than you have to for an object that lives a hard life. It's astonishingly cheap for what it does, wonderfully portable and powerful enough to keep up with city cycling traffic. If your roads are mostly smooth, your rides short and flat, and you don't mind a bit of buzz and the occasional bolt check, it's a remarkably effective tool.

The Razor E Prime III, meanwhile, feels like the grown-up evolution of the scooter many of us rode as kids. It rides better at the front, feels more settled, looks more professional and generally behaves like a more mature product. Its problem is simple: it asks a premium price while quietly losing the numbers game on battery and motor. Yet, if you value a calmer ride, quieter hardware and the comfort of a recognisable brand, it is still the nicer scooter to live with day in, day out.

If I had to commute on one of these every weekday and my own money was on the line, I'd lean toward the Razor for its more sorted feel and comfort - as long as my route was short and not overly hilly. But if I were advising a student on a budget, or someone just testing the waters of e-scooters, the KuKirin's brutal value and tiny folded size are difficult to argue against. Choose with your roads, your wallet and your tolerance for rough edges in mind.

Numbers Freaks Corner

Weight per km/h (kg/km/h)
Metric KUGOO KuKirin S3 Pro RAZOR E Prime III
Price per Wh (€/Wh) ✅ 0,84 €/Wh ❌ 2,49 €/Wh
Price per km/h of top speed (€/km/h) ✅ 7,60 €/km/h ❌ 15,90 €/km/h
Weight per Wh (g/Wh) ✅ 42,59 g/Wh ❌ 59,46 g/Wh
Weight per km/h (kg/km/h)✅ 0,38 kg/km/h✅ 0,38 kg/km/h
Price per km of real-world range (€/km) ✅ 13,03 €/km ❌ 27,94 €/km
Weight per km of real-world range (kg/km) ✅ 0,66 kg/km ❌ 0,67 kg/km
Wh per km efficiency (Wh/km) ❌ 15,43 Wh/km ✅ 11,21 Wh/km
Power to max speed ratio (W/km/h) ✅ 11,67 W/(km/h) ❌ 8,62 W/(km/h)
Weight to power ratio (kg/W) ✅ 0,03 kg/W ❌ 0,04 kg/W
Average charging speed (W) ✅ 67,50 W ❌ 37,00 W

These metrics strip the scooters down to pure maths: how much you pay for each unit of battery and speed, how much weight you carry per unit of energy or performance, and how efficiently they turn watt-hours into real-world kilometres. Lower cost and weight per unit generally favour the KuKirin, while the Razor shows its strength in energy efficiency - it squeezes more distance from each watt-hour, even if it gives you fewer watt-hours to begin with.

Author's Category Battle

Category KUGOO KuKirin S3 Pro RAZOR E Prime III
Weight ❌ Slightly heavier ✅ Marginally lighter
Range ✅ More real-world distance ❌ Shorter usable range
Max Speed ✅ Slightly faster unlocked ❌ Just behind on top
Power ✅ Stronger motor punch ❌ Noticeably weaker
Battery Size ✅ Larger capacity pack ❌ Smaller battery
Suspension ✅ Basic front and rear ❌ No real suspension
Design ❌ Functional, budget look ✅ Sleek, professional styling
Safety ❌ Solid tyres, twitchier feel ✅ Better grip, certification
Practicality ✅ Smaller folded footprint ❌ Less compact handlebars
Comfort ❌ Harsh on rough surfaces ✅ Smoother front-end ride
Features ✅ Adjustable stem, display ❌ Simpler cockpit, fewer extras
Serviceability ✅ Easy DIY, cheap spares ❌ Less tinkerer-friendly
Customer Support ❌ Patchy, brand-distance feel ✅ Established support network
Fun Factor ✅ Lively, zippy, playful ❌ More sensible, less playful
Build Quality ❌ Rattles develop, rough edges ✅ Tighter, more solid feel
Component Quality ❌ Clearly cost-cut parts ✅ Better grips, joints, finish
Brand Name ❌ Lesser-known to mainstream ✅ Strong, recognisable brand
Community ✅ Large, very active groups ❌ Smaller enthusiast presence
Lights (visibility) ❌ Adequate but basic ✅ Brighter, better integrated
Lights (illumination) ❌ Needs helmet light help ✅ Stronger stock headlight
Acceleration ✅ Punchier off the line ❌ Gentler, less urgent
Arrive with smile factor ✅ Cheeky, fast-feeling ❌ More sober experience
Arrive relaxed factor ❌ More vibration, more effort ✅ Calmer, smoother ride
Charging speed ✅ Quicker full recharge ❌ Slower relative charging
Reliability ❌ More minor niggles, rattles ✅ Feels more consistent
Folded practicality ✅ Very small, easy to stash ❌ Wider, less locker-friendly
Ease of transport ✅ Compact, decent carry ✅ Light, well-balanced carry
Handling ❌ Twitchy at higher speeds ✅ More stable, predictable
Braking performance ❌ Jerky, foot brake dependence ✅ Slightly more controlled
Riding position ❌ Narrow deck, upright stem ✅ Wider deck, relaxed
Handlebar quality ❌ Narrow, more flex, fold ✅ Solid, comfortable grips
Throttle response ❌ Abrupt with e-brake pairing ✅ Smoother power delivery
Dashboard / Display ✅ Informative LCD screen ❌ Only simple LEDs
Security (locking) ❌ No dedicated lock point ✅ Integrated lock eyelet
Weather protection ✅ Rated splash resistance ❌ More cautious, less stated
Resale value ❌ Budget brand, drops faster ✅ Better brand retention
Tuning potential ✅ Lots of mods, hacks ❌ Limited upgrade culture
Ease of maintenance ✅ Simple, widely documented ❌ Less user-service focus
Value for Money ✅ Outstanding for the price ❌ Pricey for offered spec

Overall Winner Declaration

Winner

In the Numbers Freaks Corner, the KUGOO KuKirin S3 Pro scores 9 points against the RAZOR E Prime III's 2. In the Author's Category Battle, the KUGOO KuKirin S3 Pro gets 20 ✅ versus 20 ✅ for RAZOR E Prime III.

Totals: KUGOO KuKirin S3 Pro scores 29, RAZOR E Prime III scores 22.

Based on the scoring, the KUGOO KuKirin S3 Pro is our overall winner. Between these two, the Razor E Prime III ultimately feels like the scooter I'd trust more for a regular urban commute: it rides calmer, feels better screwed together and slotting it into a grown-up life is just that bit more seamless. The KuKirin S3 Pro answers back with cheeky speed and absurd value, but it never fully shakes off its "built to a budget" character - you're always aware of the compromises under your feet. If your heart leans towards refinement and you want your scooter to feel like a polished product rather than a clever bargain, the Razor is the one that will keep you happier in the long run. If your wallet does the talking and you're willing to accept more buzz, a rougher finish and a bit of DIY, the Kugoo remains a temptingly effective shortcut to electric freedom.

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.