INMOTION S1F vs NIU KQi3 Pro - Which "Almost Great" Commuter Scooter Actually Deserves Your Money?

INMOTION S1F 🏆 Winner
INMOTION

S1F

807 € View full specs →
VS
NIU KQi3 Pro
NIU

KQi3 Pro

662 € View full specs →
Parameter INMOTION S1F NIU KQi3 Pro
Price 807 € 662 €
🏎 Top Speed 40 km/h 32 km/h
🔋 Range 95 km 50 km
Weight 24.0 kg 20.0 kg
Power 1700 W 700 W
🔌 Voltage 54 V 48 V
🔋 Battery 675 Wh 486 Wh
Wheel Size 10 " 9.5 "
👤 Max Load 140 kg 120 kg
Speed Comparison

Fast Answer for Busy Riders ⚡ (TL;DR)

The NIU KQi3 Pro edges out as the better overall package for most riders: it's cheaper, lighter, better finished in the details, and its brakes and handling inspire more confidence in daily city use. The INMOTION S1F fights back with noticeably more comfort and far more range, making it the better choice if your commute is long or your roads are bad.

Choose the NIU if your riding is mostly on decent tarmac, you want something sturdy but manageable to haul around, and you care about braking and brand support. Choose the INMOTION if you're doing serious kilometres per week, you're heavier, or your city has more potholes than asphalt and you want suspension to save your spine.

Both are "good enough" rather than perfect; the trick is picking the one that's good enough for your reality. Read on, because the devil - and the value - really is in the details.

Urban commuters love both of these scooters on paper: sensible speeds, respectable range, "adult" looks and big-brand logos that reassure your more nervous friends. On the road, though, they take very different approaches to doing essentially the same job: get you across town without needing a chiropractor or a second mortgage.

The INMOTION S1F is the long-legged, softly-sprung commuter bus of the pair - heavy, comfy, and in no particular hurry to be carried anywhere. The NIU KQi3 Pro is more like a compact city car: planted, solid, efficient, and slightly less forgiving when the road turns into a cobblestone museum.

If you're deciding where to drop several hundred euros, it's worth looking past the spec sheets and into how they actually live day to day. Let's dig in.

Who Are These For, and Why Compare Them?

INMOTION S1FNIU KQi3 Pro

Both the S1F and the KQi3 Pro sit in that awkwardly crowded "serious commuter, not a toy, not a rocket" price band. They're for riders who want to replace a chunk of public transport or car use, not just glide from the metro to the office door.

The INMOTION S1F leans toward the "daily workhorse for long distances" crowd: big battery, full suspension, generous rider weight capacity. It's aimed at people who do real mileage, delivery riders, and heavier users who've already snapped one cheap scooter frame and don't want to repeat the experience.

The NIU KQi3 Pro is more of an everyday city commuter for riders with slightly shorter routes and better infrastructure: strong build, confident brakes, big tyres, but no suspension and a smaller battery. Think stable bike-lane cruiser rather than long-distance tourer.

They're natural rivals because both promise "grown-up" build quality and comfort without tipping into ridiculous power or price. Same general mission; very different execution.

Design & Build Quality

Specs Comparison

Pick up the NIU and the first thought is usually: "This feels like it was designed by people who also build mopeds." The frame feels dense and overbuilt in a good way, welds are clean, and there's a sense that someone in the factory actually rode the thing before selling it. The signature halo headlight, neat cable routing and subtle colour accents help it look like a finished product rather than a parts catalogue on wheels.

The INMOTION S1F, by contrast, looks more futuristic but also more utilitarian. The long deck, tall stem and light strips scream "range and comfort first, glamour second." The chassis is solid and doesn't feel flimsy in the slightest, but there's a slight appliance vibe - functionally sound, just not quite as refined in the small details as the NIU. Think business van versus city crossover.

In your hands, the NIU's controls and levers feel a bit more premium. The folding clamp, brake levers and grips give off a tighter, more precise impression. The S1F isn't poor - it's solidly mid-pack - but the plastics and some touchpoints feel more "good enough" than "great." For outright robustness, both are fine, but on sheer perceived quality, the NIU takes the point.

Ride Comfort & Handling

This is where the philosophies completely diverge.

On the INMOTION S1F, rough urban surfaces turn from punishment into background noise. Dual suspension front and rear, combined with larger tubeless tyres, make the scooter glide over cracks, expansion joints and those charming "historic" cobbles that city councils refuse to fix. After 5 km of broken pavement, your knees are still on speaking terms with you. The long wheelbase and wide deck add to the "limousine" feeling - it's relaxed, calm, and very unhurried in its manners.

The trade-off is agility. The S1F feels big. Quick slaloms around pedestrians or sudden swerves around surprise potholes are possible, but you're always aware that you're piloting a substantial bit of hardware. It tracks straight beautifully, but you won't mistake it for a slalom racer.

The NIU KQi3 Pro, without mechanical suspension, leans on its fat tubeless tyres and chassis geometry to do the comfort work. On decent asphalt and bike paths, it feels surprisingly composed - "firm but polite" is about right. You feel more of what's happening under the wheels, but it doesn't feel nervous or skittish; the wide bars keep things steady, and the big tyres soak up the small stuff.

Hit truly bad surfaces, though, and the lack of suspension shows. After a few kilometres of rough cobbles at full speed, you'll be scanning for smoother lines or slowing down out of self-preservation. The flip side is that the handling is sharper: the NIU changes direction more willingly and feels easier to thread through tight traffic or around wandering tourists.

If your city is relatively smooth and you like a connected feel, the NIU wins on handling. If your city planners hate cyclists and your roads look like a lunar surface, the INMOTION is far kinder to your body.

Performance

Both scooters are "sane speed" machines. They'll outrun rental fleet toys, but neither is going to pull your arms from their sockets.

The INMOTION S1F has the more muscular feel overall. Its motor is rated higher and peaks harder, and you can feel that extra shove when you launch from lights or climb a steep ramp. Acceleration is smooth rather than explosive, but it keeps building speed with a reassuring, linear pull. Up to its top cruising pace, it feels unbothered, even with a heavier rider or a backpack full of bad life choices.

The NIU KQi3 Pro feels sprightlier than its rated motor might suggest, helped by the slightly higher system voltage. Off the line, it nudges you forward with a pleasant, predictable surge - not thrilling, but not lazy either. It tops out a bit earlier than the S1F, so high-speed overtakes in bike lanes require a bit more planning, but in typical city use it never really feels underpowered unless you're asking it to do things it wasn't designed for.

On hills, the INMOTION is noticeably stronger, especially with heavier riders. The S1F will grind up steeper urban climbs with less drama, where the NIU starts to lose pace sooner. On moderate inclines, both cope, but if your commute includes a serious wall of a hill, the S1F simply has more grunt in reserve.

Braking is a different story. Here the NIU quietly walks away. Dual mechanical discs plus regenerative braking give you strong, predictable stopping power with a nice, progressive feel at the levers. Panic stops feel controlled rather than "I really hope the tyres grip." The INMOTION's drum plus regen setup is low maintenance and smooth, but it lacks that sharp initial bite. You can absolutely stop safely, it just feels more muted, and enthusiastic riders may find themselves wanting a bit more authority at the lever.

Battery & Range

This round is not subtle: the S1F has a substantially larger battery, and you feel it in the way you stop caring about where the nearest plug is.

In realistic riding - mixed speeds, some hills, rider of average build - the S1F comfortably stretches well beyond what the NIU can do. We're talking commutes that most scooters treat as a round trip; the S1F treats them as a warm-up. If you're doing long distances, delivery work, or you're on the heavier side, that oversized pack is the difference between charging every couple of days and living on the charger.

The NIU KQi3 Pro's range is decent for its class, but not spectacular. Many riders will get a working day's riding out of it without dread, but it's a "charge nightly or every other night" kind of scooter, especially if you ride in Sport mode and don't baby the throttle. For classic urban commute lengths, it's enough; for longer suburban treks, you'll start watching the battery gauge.

Charging is a small tactical win for the S1F if you invest in a second charger: dual ports mean you can halve the time, which is handy for heavy users. With a single brick, though, both scooters live firmly in the "plug it in overnight and forget about it" camp. Neither is what you'd call fast to charge from empty, but they're acceptable for real-world use.

So: if you hate range anxiety and want your scooter to outlast you, the INMOTION wins this one convincingly. If your daily distance is modest, the NIU's smaller battery is sufficient and keeps the scooter lighter and cheaper.

Portability & Practicality

On the scales, the NIU is the easier companion. It's several kilos lighter, and you feel that every single time you have to drag it up steps or wrestle it into a car boot. It's still no featherweight - carrying it up multiple floors is a workout - but it falls into the "annoying chore" category rather than "gym session." The folding latch is quick and secure, and once folded you can carry it by the stem without feeling like it's about to disassemble itself in your hands.

The INMOTION S1F, in contrast, is unapologetically hefty. The big battery, dual suspension and beefy frame all add up. Carrying it up more than a short flight of stairs is not something you'll volunteer for twice. The fold is sturdy and confidence-inspiring, but the overall package is long and tall, and the fixed-height stem doesn't help with compactness. This is a scooter designed to live at street level or in a lift, not on your shoulder.

For storage and multimodal commuting, the NIU is clearly the more cooperative of the two. Narrow corridors, packed trains, tight flats - it copes better. The S1F asks for more space and more forgiveness; it's happiest when you roll it straight from the bike shed to the bike lane without detours through stairwells and crowded buses.

Safety

Both brands take safety more seriously than the average no-name Amazon special, but they go about it differently.

The NIU KQi3 Pro feels like it was designed by people who ride in busy European cities daily. The lighting package is genuinely excellent: the halo headlight makes you visible in daylight and gives enough throw at night to see what you're about to hit, with a bright tail light that reacts to braking. The wide handlebars, sensible steering angle and fat tyres make the scooter feel planted at its top speed; you're not fighting twitchy steering or random wobbles. Add in serious dual-disc braking and you have a scooter that encourages you to ride assertively but safely.

The INMOTION S1F has its own strong safety tricks. The high-mounted headlight is positioned where it actually lights up the road ahead rather than your front tyre, and the automatic turn signals are genuinely clever - lean into a turn, and the scooter lets traffic know, without you having to fumble for buttons. The long wheelbase and low-mounted battery give it a very stable feel in a straight line, particularly at the upper end of its speed range.

Where the S1F falls slightly behind is in raw braking hardware. The front drum plus rear regen setup is low-maintenance and well-sealed against weather, which is fantastic for winter commuters. But when you really haul on the lever from speed, you just don't get the same "anchor overboard" feeling you do on the NIU. It's adequate; the NIU is confident.

Tyre-wise, both are on tubeless pneumatic rubber, which is streets ahead of solid tyres for grip and safety. The S1F's suspension helps it track over nasty bumps mid-corner; the NIU relies on chassis and tyre width to stay composed. Overall, the NIU wins the "I feel safe riding this in traffic" award, with the S1F a close second thanks to stability and clever lighting.

Community Feedback

INMOTION S1F NIU KQi3 Pro
What riders love What riders love
  • Very long real-world range
  • Plush, forgiving suspension
  • Strong hill-climbing, even for heavier riders
  • Huge, comfortable deck and tall stem
  • Clever lighting and auto turn signals
  • Dual charging ports for faster top-ups
  • Solid water resistance and weather readiness
  • "Tank-like" build, no rattles
  • Extremely stable handling and wide bars
  • Strong dual disc + regen brakes
  • Great tubeless tyres and grip
  • Stylish design and halo headlight
  • Useful app with real features
  • Good warranty and brand support
What riders complain about What riders complain about
  • Very heavy to carry upstairs
  • Bulky when folded, stem not telescopic
  • Long charge time with one charger
  • Brake feel not as sharp as discs
  • Battery gauge not perfectly linear
  • Regen strength not user-adjustable
  • Still heavy, especially without a lift
  • No suspension, harsh on bad roads
  • Must use app to unlock full speed
  • Slight throttle lag for some riders
  • Mechanical brakes need occasional adjustment
  • Rear valve access is awkward

Price & Value

On sticker price alone, the NIU KQi3 Pro comes in noticeably cheaper. For a scooter with a big-name brand, solid build, strong brakes and a decent battery, it's very good value. You're getting a complete, well-developed product that feels sorted out of the box, and you keep some money in your pocket for a decent helmet and maybe a rain jacket.

The INMOTION S1F costs more, but you are paying for extra battery capacity, suspension, and higher rider load capability. If you'll actually use that extra range and comfort, the price premium is rational. If your daily rides are short and mostly smooth, you'll be spending extra money on capability that will mostly sit in reserve.

Over the long term, both should age reasonably well. The NIU has an advantage in perceived quality and resale, thanks to the brand's recognition and widespread presence. The S1F counters with bigger battery and low-maintenance brake hardware, which may mean fewer consumables, especially for high-mileage riders.

Value-wise: for the average city commuter, the NIU is the better deal. For the high-mileage or heavier rider, the S1F can easily justify its higher price tag.

Service & Parts Availability

NIU has a strong dealer and service network across Europe thanks to its moped business. That means better odds of finding an official shop within riding distance, easier warranty handling, and relatively painless access to original parts like brake components and controllers. It's not car-level ubiquity, but for a scooter, it's about as good as it gets.

INMOTION is also an established brand, but its footprint is more fragmented and often reliant on local distributors and specialist PEV shops. You can get parts, and there's an active community with guides and spare parts sources, but it feels a bit less plug-and-play than NIU's retail presence. If you're in a big city, you're probably fine. If you're rural, expect more shipping and more DIY.

In terms of repairability, both are fairly standard modern scooters: electronics are modular, wheels are serviceable, and common wear items can be handled by a competent bike shop. The S1F's drum brake means fewer brake adjustments, but when you do need to service it, it's a little less familiar to standard bike mechanics than NIU's dual discs.

Pros & Cons Summary

INMOTION S1F NIU KQi3 Pro
Pros
  • Excellent real-world range
  • Very comfortable suspension for rough roads
  • Strong hill performance, supports heavier riders well
  • Huge, grippy deck and tall, relaxed riding position
  • Clever lighting and automatic indicators
  • Dual charging ports for faster recharges
  • Good weather resistance and low-maintenance drum brake
Pros
  • Lower price with strong overall spec
  • Superb braking performance and stability
  • Solid, rattle-free build and premium feel
  • Wide handlebars and deck for secure stance
  • Excellent lighting and visibility
  • Strong brand support and warranty
  • Manageable weight for its class
Cons
  • Heavy and bulky to carry or store
  • Folding footprint large, stem not telescopic
  • Braking lacks the bite of dual discs
  • Long charge time without dual chargers
  • Overkill for short, smooth commutes
  • App and ecosystem less widespread than NIU
Cons
  • No suspension; harsh on bad surfaces
  • Range merely decent, not long-distance
  • Still heavy for walk-up flats
  • Brakes require occasional manual adjustment
  • App needed to unlock full performance
  • Comfort drops sharply on cobbles and potholes

Parameters Comparison

Parameter INMOTION S1F NIU KQi3 Pro
Motor power (rated) 500 W rear 350 W rear
Top speed 40 km/h 32 km/h
Battery capacity 675 Wh (54 V) 486 Wh (48 V)
Claimed max range 80-95 km 50 km
Realistic range (approx.) 50-70 km 30-40 km
Weight 24 kg 20 kg
Brakes Front drum + rear regen Front & rear disc + regen
Suspension Front & rear None
Tyres 10" tubeless pneumatic 9,5" tubeless pneumatic
Max rider load 140 kg 120 kg
Water resistance IP55 IP54
Charging time 7 h (≈3,5 h dual) 6 h
Approx. price 807 € 662 €

Final Verdict - Which Should You Choose?

If you strip away the marketing fluff, both of these scooters land in the "actually quite reasonable" camp. Neither is a game-changer, but both are solid commuters with clear strengths and equally clear compromises.

The NIU KQi3 Pro is the better choice for most urban riders. It's cheaper, easier to live with physically, better in the details, and gives you excellent safety with its braking and lighting. If your riding is mainly on paved city streets, with a typical-length commute and no obsession with extreme range, it simply feels like the more complete package day to day.

The INMOTION S1F earns its place for riders with specific needs: long or hilly commutes, rough surfaces, higher rider weight, or delivery-style usage where comfort over hours actually matters. In those scenarios, its extra battery and suspension aren't luxuries; they're the difference between "nice toy" and "legitimate vehicle."

So: pick the NIU if you want a stable, well-sorted city scooter that does almost everything pretty well and doesn't break the bank. Pick the INMOTION if your rides are longer, tougher, or heavier than average, and you're willing to tolerate the bulk in exchange for comfort and endurance.

Numbers Freaks Corner

Metric INMOTION S1F NIU KQi3 Pro
Price per Wh (€/Wh) ✅ 1,20 €/Wh ❌ 1,36 €/Wh
Price per km/h of top speed (€/km/h) ✅ 20,18 €/km/h ❌ 20,69 €/km/h
Weight per Wh (g/Wh) ✅ 35,56 g/Wh ❌ 41,15 g/Wh
Weight per km/h (kg/km/h) ✅ 0,60 kg/km/h ❌ 0,63 kg/km/h
Price per km of real-world range (€/km) ✅ 13,45 €/km ❌ 18,91 €/km
Weight per km of real-world range (kg/km) ✅ 0,40 kg/km ❌ 0,57 kg/km
Wh per km efficiency (Wh/km) ✅ 11,25 Wh/km ❌ 13,89 Wh/km
Power to max speed ratio (W/km/h) ✅ 12,50 W/km/h ❌ 10,94 W/km/h
Weight to power ratio (kg/W) ✅ 0,048 kg/W ❌ 0,057 kg/W
Average charging speed (W) ✅ 96,43 W ❌ 81,00 W

These metrics look purely at how efficiently each scooter converts money, weight, power and charging time into range and speed. Lower values generally mean you're getting more output (range or performance) for each euro, kilogram or watt you put in. The S1F's larger battery and higher power give it a strong mathematical advantage in "efficiency per spec sheet," while the NIU trades some of that raw efficiency for lighter weight, lower price and stronger braking hardware that doesn't show up in these formulas.

Author's Category Battle

Category INMOTION S1F NIU KQi3 Pro
Weight ❌ Noticeably heavier overall ✅ Lighter, easier to haul
Range ✅ Comfortably longer real range ❌ Adequate but shorter
Max Speed ✅ Higher top cruising speed ❌ Slower, city-limited
Power ✅ Stronger motor, better hills ❌ Weaker on steep climbs
Battery Size ✅ Much larger capacity ❌ Smaller, commuter focused
Suspension ✅ Dual suspension comfort ❌ No suspension at all
Design ❌ Functional, less refined ✅ Cleaner, more cohesive
Safety ❌ Softer brakes, still OK ✅ Strong brakes, very stable
Practicality ❌ Heavy, bulky when folded ✅ Easier daily to live with
Comfort ✅ Far more plush ride ❌ Firm, harsh on bad roads
Features ✅ Suspension, dual charge, signals ❌ Fewer comfort extras
Serviceability ❌ Drum less familiar to shops ✅ Bike-like discs, simpler
Customer Support ❌ Decent, but patchier network ✅ Stronger EU dealer presence
Fun Factor ✅ Plush cruising, higher speed ❌ Sensible, slightly less exciting
Build Quality ❌ Solid but less polished ✅ Feels tighter, more premium
Component Quality ❌ Adequate, nothing special ✅ Better brakes, finishing
Brand Name ❌ Smaller scooter footprint ✅ Strong, visible presence
Community ❌ Smaller, more niche ✅ Larger, very active
Lights (visibility) ✅ Auto signals, side strips ❌ Great, but less showy
Lights (illumination) ✅ High-mounted, effective beam ✅ Halo headlight, strong too
Acceleration ✅ Stronger, better under load ❌ Respectable but milder
Arrive with smile factor ✅ Cushy, relaxed, playful ❌ Competent, less charming
Arrive relaxed factor ✅ Suspension saves your body ❌ Fine only on smooth tarmac
Charging speed ✅ Dual ports potential boost ❌ Single, average charger
Reliability ✅ Proven, low-maintenance setup ✅ Very robust, "tank-like"
Folded practicality ❌ Long, tall, awkward ✅ Shorter, easier in cars
Ease of transport ❌ Heavy, stair-unfriendly ✅ Manageable for short carries
Handling ❌ Stable but less nimble ✅ Sharper, more precise
Braking performance ❌ Smooth but less bite ✅ Strong dual discs, regen
Riding position ✅ Tall, very relaxed stance ❌ Good, but less adjustable
Handlebar quality ❌ Fine, a bit generic ✅ Wide, confidence inspiring
Throttle response ✅ Smooth, well tuned ❌ Slight lag for some
Dashboard/Display ✅ Large, clear integration ❌ Good, but less standout
Security (locking) ❌ Basic app, standard options ✅ App lock, better ecosystem
Weather protection ✅ Better IP, sealed drum ❌ Slightly lower rating
Resale value ❌ Holds, but more niche ✅ Stronger brand recognition
Tuning potential ❌ Limited mainstream mod scene ❌ Also limited, locked ecosystem
Ease of maintenance ❌ Drum, more closed systems ✅ Bike-shop friendly parts
Value for Money ❌ Great if you use range ✅ Better for typical commuters

Overall Winner Declaration

Winner

In the Numbers Freaks Corner, the INMOTION S1F scores 10 points against the NIU KQi3 Pro's 0. In the Author's Category Battle, the INMOTION S1F gets 19 ✅ versus 21 ✅ for NIU KQi3 Pro.

Totals: INMOTION S1F scores 29, NIU KQi3 Pro scores 21.

Based on the scoring, the INMOTION S1F is our overall winner. Between these two, the NIU KQi3 Pro feels like the one that will quietly earn your trust on the daily grind - it's easier to live with, feels more sorted, and asks for fewer compromises if your commute is fairly normal. The INMOTION S1F has its charms, especially when the road turns ugly or the distance stretches out, but it makes you pay for that comfort in weight and bulk. If I had to live with just one of them for everyday city duty, I'd take the NIU's calmer, more balanced personality - and borrow an S1F only on those days when I know the ride will be long, rough, and I want my knees to still like me afterwards.

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.