Ducati PRO-III R vs SoFlow SO4 Gen 3 - Style Icon Meets Heavy-Duty Workhorse

SOFLOW SO4 Gen 3
SOFLOW

SO4 Gen 3

581 € View full specs →
VS
DUCATI PRO-III R 🏆 Winner
DUCATI

PRO-III R

799 € View full specs →
Parameter SOFLOW SO4 Gen 3 DUCATI PRO-III R
Price 581 € 799 €
🏎 Top Speed 20 km/h 25 km/h
🔋 Range 30 km 40 km
Weight 16.5 kg 17.6 kg
Power 900 W 800 W
🔌 Voltage 36 V 48 V
🔋 Battery 280 Wh 499 Wh
Wheel Size 10 " 10 "
👤 Max Load 150 kg 100 kg
Speed Comparison

Fast Answer for Busy Riders ⚡ (TL;DR)

The Ducati PRO-III R is the overall winner here: it goes noticeably further, accelerates more convincingly, and wraps everything in a genuinely premium-feeling package - as long as you accept that you're paying a brand and design premium. The SoFlow SO4 Gen 3 fights back with a sturdier load rating, tougher-feeling chassis and better brakes for heavier riders, but its small battery and modest performance hold it back.

Choose the Ducati if you're a style-conscious city commuter who rides on decent tarmac, wants real range, and appreciates good design more than spec-sheet bravado. Pick the SoFlow if you're heavier, value legality and structural robustness above all, and your daily trips are short and predictable. Both have compromises, but how you ride - and how much you weigh - will decide which flaws you're willing to live with.

If you want the full story, including where each scooter quietly disappoints once the novelty wears off, keep reading - the devil (and the value) is in the details.

Electric scooters have grown up. We're no longer choosing between wobbly toys and eye-wateringly expensive hyper-scooters; the interesting fight is in the "serious commuter" class. That's exactly where the SoFlow SO4 Gen 3 and the Ducati PRO-III R square off: both pitched as daily vehicles, both claiming premium touches, both insisting they're the scooter you actually want to ride every day, not just on sunny Sundays.

On paper, they occupy neighbouring price brackets and similar power classes. In practice, they answer very different questions. The SoFlow is the sensible, slightly stern office manager: overbuilt frame, strict respect for regulations, high load capacity, and a motor tuned to haul weight rather than chase thrills. The Ducati is the good-looking colleague who turns up late, smells of expensive cologne and somehow still gets promoted: strong motor, big battery, magnesium frame, and a badge that does a lot of the talking for it.

If you're torn between Swiss-branded stoutness and Italian-styled flair, this comparison will help you see past the marketing and down to what they're actually like to live with.

Who Are These For, and Why Compare Them?

SOFLOW SO4 Gen 3DUCATI PRO-III R

These two sit squarely in the mid-range: not budget toys, not monsters. Both are road-legal, single-motor commuters with similar top speeds aligned to European regulations, aiming at urban riders who want something "real" without dragging a mini-motorbike up the stairs.

The SoFlow SO4 Gen 3 is aimed at riders who want a robust, rule-abiding scooter that can handle serious weight and daily abuse. Think: heavier commuters, big backpacks, short but regular trips. It's about durability, safety features and compliance more than it is about blowing hats off at traffic lights.

The Ducati PRO-III R, meanwhile, is very obviously built for the style-conscious city rider: people who care what their scooter looks like parked in front of the office, who want strong everyday performance and real range, but won't cry if they could have got a bit more motor and battery for less money from a no-name brand.

They end up in many of the same comparison lists because they cost vaguely similar amounts, share a similar legal speed ceiling, and both wear "serious commuter" badges. But they prioritise very different things - which is exactly why putting them nose-to-nose is useful.

Design & Build Quality

Specs Comparison

Pick them up and you immediately feel the philosophical split.

The SoFlow's aluminium frame is chunky and purposeful. Welds look beefy rather than beautiful, the stem is reassuringly thick, and the whole scooter gives off "municipal fleet" energy - in a good way. The wide deck is more pragmatic than pretty, the integrated display is neat, and the green accents try to inject some personality into what is otherwise a very functional aesthetic.

The Ducati, by contrast, looks like someone actually cared what it would look like ten years from now in photos. The magnesium frame allows sweeping lines you simply don't get from basic tubing; the finish feels more "consumer electronics" than "industrial equipment". The big, bright display, tidy cable routing and subtle Ducati livery make it feel like a cohesive product rather than a kit of parts.

In the hands, the SoFlow feels robust and slightly agricultural - thick, solid, confidence-inspiring, but not exactly refined. The Ducati feels tighter and more polished, though some of the smaller plastic bits (kickstand, some switchgear) remind you that not every part enjoyed the same design attention as the frame.

If you value no-nonsense sturdiness and can live with a fairly generic look, the SoFlow will do fine. If you want to actually enjoy looking back at your scooter when you lock it up, the Ducati walks away with this one.

Ride Comfort & Handling

Neither scooter has mechanical suspension, so comfort comes down to tyres, frame behaviour and geometry - and your tolerance for using your knees as shock absorbers.

The SoFlow runs on relatively large pneumatic tyres and a stiff aluminium chassis. On decent bike paths it's absolutely acceptable: the big wheels give stability, and the wide deck lets you shuffle your stance and soak up imperfections with your legs. The moment you hit broken tarmac, expansion joints or rough cobbles, the lack of suspension makes itself known. After several kilometres of patchy pavement, your knees will start dropping hints that maybe a seated vehicle wouldn't be the worst idea.

The Ducati uses similarly sized tubeless pneumatic tyres, which do a good job of killing the sharpest edges of road chatter, and the magnesium frame has a slightly more damped feel than bare aluminium. On smooth city asphalt, it feels precise and planted, almost sporty - you get that connected, "I know what the front wheel is doing" sensation. On rougher surfaces, however, both scooters are on the same "brace and bend your knees" level; the Ducati just keeps the vibrations slightly more controlled rather than drastically more comfortable.

In corners, the Ducati's chassis and cockpit give more confidence. The wide bars, stable stem and clear feedback from the rear-drive setup make quick line adjustments easy. The SoFlow is stable enough, but its steering feels a little more utilitarian - it goes where you point it, but it won't invite you to carve turns for fun.

For everyday city commuting on decent surfaces, both are fine. The Ducati feels a bit more mature and tuned; the SoFlow is competent but never exactly delightful.

Performance

Both scoots are electronically capped to legal speeds, so the fun is in how they get up to that limit, and how they deal with hills and heavier riders.

The SoFlow's motor sits in that familiar "legal commuter, slightly warmed up" class. Off the line it pulls reasonably well, especially if you're used to 250-350 W rental scooters; it's clearly tuned more for torque than flat-out speed. With a light to average rider, it steps up to its cruising pace briskly enough to keep traffic from breathing down your neck. With a heavier rider closer to its impressive load rating, acceleration becomes more of a determined jog: it will get there, but you're not exactly catapulted.

The Ducati's motor, on the other hand, has clearly eaten its spinach. Throttle response is stronger, the shove off the line is more assertive, and it holds speed more stubbornly when the terrain tilts upwards. Hills that make the SoFlow dig deep and audibly work through its reserves are handled by the Ducati with more composure. You still feel gravity, but you're not wondering whether you'll be reduced to kicking along next to cyclists.

Top speed is basically a draw in legal trim; what matters is how much effort the scooter seems to be putting in at those speeds. The Ducati feels like it's cruising well within its comfort zone. The SoFlow feels like it's using a bigger chunk of its reserves to do the same job, especially if you're on the heavier side.

Braking is where things become a bit nuanced. The SoFlow's mechanical discs front and rear give you old-fashioned, predictable bite. You squeeze, it slows, and you always know what the tyres are doing. Brake feel out of the box can be a bit noisy and may need adjustment, but once dialled in they're confident. The Ducati relies on a mechanical rear disc supplemented by electronic front braking and KERS. In practice, that combo works decently well - especially the smoothness of regen - but you don't quite get the same two-anchor sensation of the SoFlow's dual hardware setup.

Overall, if you're chasing strong, smooth acceleration and better high-torque behaviour, the Ducati is the more satisfying ride. If your priority is predictable, mechanical braking and "good enough" shove, the SoFlow is acceptable, but it never feels particularly eager.

Battery & Range

This is the category where these scooters stop being direct rivals and start living in different leagues.

The SoFlow's battery is on the small side for a modern mid-range machine. Its marketing range figure is optimistic even for featherweight riders on pan-flat routes. In realistic urban use - full speed, plenty of starts and stops, average European body mass, maybe a mild hill or two - you're looking at a distance that comfortably covers short commutes, but not much more. If your daily round trip runs beyond the low-to-mid-teens in kilometres, you're going to be charging every day and watching the battery indicator with more attention than is relaxing.

The Ducati packs a noticeably bigger energy store and it shows. The claimed range is, as usual, measured under laboratory-fantasy conditions, but in the real world you can reasonably expect to go about half again as far as on the SoFlow at similar riding styles, and more if you're willing to stick to milder modes. That means two, maybe three commuting days for many people between charges instead of nervously eyeing the socket after each return trip.

Then comes the catch: the SoFlow recharges in a reasonably short working day or afternoon; the Ducati demands a proper overnight session. Forget to plug it in and you're not salvaging much range with a "quick splash" before work. The SoFlow, with its smaller pack, rebounds from empty faster, which is some consolation for its limited endurance.

Range anxiety is the key emotional difference: on the SoFlow, you start thinking about percentage remaining quite early. On the Ducati, you mainly think about it if you're planning a longer after-work detour.

Portability & Practicality

On the scales, the two are pretty close; in the real world, the differences are more about design than kilograms.

The SoFlow's weight is firmly in "I can carry it up one or two flights if I have to, but please don't make me do this every day" territory. The folding mechanism is straightforward and effective, though the non-folding handlebar width makes it a bit of a space hog in crowded train aisles or narrow hallways. For quick car boot stowage or rolling it into a lift, it's fine. As a daily shoulder load in a walk-up, it will get old quickly.

The Ducati is marginally heavier on paper, but the magnesium frame and well-balanced centre of gravity make it feel no worse in the hand. The folding joint locks down with a convincing click, and the folded package feels slightly more "tight" and easy to shuffle around. That said, it's still a mid-weight scooter, not a featherweight; you carry it because you must, not because you enjoy it.

In pure practicality, the SoFlow's higher load rating is a major plus if you're big or routinely loaded with gear. The Ducati's lower weight limit quietly eliminates some potential riders before we even discuss features. Conversely, the Ducati's long range and on-board USB for your phone make it the more self-contained commuter tool for average-sized riders.

Safety

Both scooters make a commendable effort on safety; they just come at it from slightly different angles.

The SoFlow's headline act is its dual mechanical disc brakes - a rare sight in its price band. That hard, mechanical connection front and rear gives very tangible stopping confidence once properly adjusted. Add in large pneumatic tyres and a stiff frame, and you get a scooter that feels planted and predictable when you really need it to behave. Lighting is serviceable-to-good, and the integrated turn signals on the bars are a very real advantage in traffic, letting you keep both hands planted while making your intentions clear.

The Ducati mirrors that indicator setup and couples it with a brighter, more focused headlight that does a better job of cutting into the darkness. Its braking setup, combining a mechanical rear disc with front electronic braking and energy recovery, feels smooth and progressive. It doesn't have the sheer redundancy of dual mechanical discs, but in everyday urban use it does the job without drama. Traction from the tubeless tyres is great on dry roads and decent in the wet, as long as you're not riding like you're on an actual Ducati superbike.

Both offer NFC-based ignition locking, which is less about accident avoidance and more about ensuring your scooter doesn't vanish at the café. It won't deter a determined thief with a van, but it stops casual joyriders in their tracks.

In short: the SoFlow leans into mechanical security and overbuilt structure, the Ducati leans into visibility and smooth electronic integration. Both are safe if ridden sensibly; heavier riders will likely appreciate the SoFlow's beefier brakes and frame more.

Community Feedback

SOFLOW SO4 Gen 3 DUCATI PRO-III R
What riders love
  • Feels solid and sturdy under heavier riders
  • Strong dual disc braking inspires confidence
  • High load rating rare at this price
  • Good hill torque for its class
  • Integrated indicators and bright lights
  • NFC lock seen as practical and modern
What riders love
  • Stand-out design and premium look
  • Strong motor and convincing hill performance
  • Big, bright display with USB charging
  • NFC key feels secure and "cool"
  • Tubeless tyres and solid overall build
  • Turn signals and lighting package
What riders complain about
  • Real-world range much lower than claims
  • Small battery for the price point
  • No suspension; harsh on bad roads
  • Brake noise and adjustment needs
  • App connectivity quirks
  • Mixed experiences with customer service
What riders complain about
  • No suspension on a "premium" scooter
  • High price versus raw specs
  • Long charging time
  • Some plasticky smaller components
  • Occasional app hiccups
  • Weight limit too low for some riders

Price & Value

Value is where both scooters have to answer some uncomfortable questions.

The SoFlow, at its asking price, offers solid build, high load rating and a decent motor, but pairs that with a rather modest battery. If you're an average-weight rider with no need for a 150 kg limit, there are alternatives with significantly more range for similar money. In that context, the SoFlow can feel like you're paying a bit too much for too little battery.

Flip it around and the story changes: if you're heavy or regularly loaded close to three figures with gear, you often have to move up into much pricier "big boy" scooters to get an honest weight rating with matching torque. Here the SoFlow undercuts many of those options while still feeling structurally trustworthy. For that specific rider, the value proposition improves considerably.

The Ducati, meanwhile, clearly carries a "Ducati tax". Spec-for-spec, you can find scooters with more motor or suspension in the same price band. But they don't look, feel or present themselves like this one. You're paying for the magnesium frame, the cohesive design, brand cachet and long real-world range. If you're allergic to paying for badges, it will annoy you. If aesthetics and brand matter to you, it lands as a just-about-defensible premium rather than outright gouging.

Service & Parts Availability

Service and support in Europe are a bit of a mixed bag for both, but in different ways.

SoFlow is an established player in the DACH region with a growing presence elsewhere. The scooters aren't obscure, and parts like tyres, brake pads and generic components are straightforward to source. Specific SoFlow spares and warranty handling, however, get mixed reviews: some riders receive prompt, competent help, others report sluggish responses and a bit of finger-pointing. It's not horror-story territory, but you don't get the rock-solid infrastructure of the very biggest global brands.

Ducati's e-mobility line is handled by a large distribution partner, which usually means a more formalised support network and a clearer supply of official parts. The flip side is that you're dealing with a licensed brand - you're not being serviced by a Desmosedici race engineer. Community sentiment is generally that while you're paying for the name, you do at least get a semi-serious aftersales structure rather than a disappearing act.

For both scooters, independent workshops can handle routine wear-and-tear easily; neither is exotic under the skin. The Ducati's badge might make some technicians a bit more careful, the SoFlow's more generic design may make bodge repairs easier if you're that way inclined.

Portability & Practicality

(Already largely covered above, but to crystallise it.) Both fold efficiently enough for multi-modal commuting, both are just on the edge of what's comfortable to carry regularly, and both are manageable around offices and lifts. The SoFlow wins if you're heavy or load-up your deck like a pack mule. The Ducati wins if your idea of practicality includes not having to charge every single day and being able to top up your phone on the go.

Safety

(Re-emphasising the comparison.) If your priority is pure, mechanical braking redundancy and a frame that laughs at high loads, the SoFlow is more reassuring. If you value a brighter headlight, slightly better night-time presence and a more polished blend of regen and mechanical braking, the Ducati feels more modern - provided you're not at the top end of its weight limit.

Pros & Cons Summary

SOFLOW SO4 Gen 3 DUCATI PRO-III R
Pros
  • High load capacity for heavy riders
  • Dual mechanical disc brakes front and rear
  • Sturdy, confidence-inspiring frame
  • Integrated turn signals and NFC lock
  • Decent hill performance for its class
  • Reasonable charging time for daily use
Pros
  • Excellent real-world range for commuting
  • Strong motor with confident acceleration
  • Magnesium frame, premium design and finish
  • Bright, large display with USB charging
  • Tubeless tyres and integrated indicators
  • NFC key and decent brand support
Cons
  • Small battery; real range limited
  • No suspension; harsh on poor roads
  • Pricey for the specification sheet
  • App connectivity and brake noise issues
  • Not ideal for long leisure rides
Cons
  • No suspension despite premium price
  • Long charging time overnight only
  • Lower load rating excludes heavier riders
  • Brand tax versus raw spec value
  • Some plasticky components undermine feel

Parameters Comparison

Parameter SOFLOW SO4 Gen 3 DUCATI PRO-III R
Motor power (nominal) 450 W 499 W
Top speed (EU legal) 20-25 km/h (market dependent) 25 km/h
Battery capacity ca. 280 Wh (36 V) 499 Wh (48 V)
Claimed range up to 30 km up to 55 km
Realistic urban range ca. 15-20 km ca. 30-35 km
Weight 16,5 kg 17,6 kg
Max load 150 kg 100 kg
Brakes Front & rear mechanical disc Rear mechanical disc + front electronic, KERS
Suspension None (pneumatic tyres only) None (pneumatic tubeless tyres only)
Tyres 10" pneumatic 10" tubeless pneumatic
Hill climb claim up to 20 % up to 22 %
Water resistance IPX4 IPX4
Charging time ca. 3-5 h ca. 9 h
Price (street, approx.) 581 € 799 €

Final Verdict - Which Should You Choose?

Strip away the badges and the brochure language, and you're left with two fairly honest machines aimed at different riders.

If you're on the heavier side, or regularly push a scooter close to its structural limits, the SoFlow SO4 Gen 3 is the safer bet. Its frame feels reassuringly overbuilt, the dual discs give real braking confidence, and its torque-tuned motor means you're less likely to crawl up hills. You pay for that with short range and a spec sheet that looks slightly anaemic next to its price, but if your daily ride is compact and predictable, it will do the job without drama.

If, however, you sit comfortably under the Ducati's weight limit and your commuting life involves longer stretches where you actually need proper range, the PRO-III R is the more complete scooter. It accelerates better, cruises more effortlessly, goes significantly further between charges and genuinely feels like a refined, premium object you'll enjoy owning. Yes, the suspension-free chassis and long charging time are disappointing at this price, and yes, you could extract more pure spec elsewhere for less. But taken as an everyday tool you'll actually want to ride, it edges ahead.

So: heavy, short-hop, safety-focused rider? The SoFlow is your pragmatic partner. Average-weight, style-savvy city commuter who wants real range and a scooter that feels special? The Ducati PRO-III R, despite its flaws and its brand tax, is the one that makes more sense - and more smiles - in daily use.

Numbers Freaks Corner

Metric SOFLOW SO4 Gen 3 DUCATI PRO-III R
Price per Wh (€/Wh) ❌ 2,08 €/Wh ✅ 1,60 €/Wh
Price per km/h of top speed (€/km/h) ✅ 23,24 €/km/h ❌ 31,96 €/km/h
Weight per Wh (g/Wh) ❌ 58,93 g/Wh ✅ 35,27 g/Wh
Weight per km/h (kg/km/h) ✅ 0,66 kg/km/h ❌ 0,70 kg/km/h
Price per km of real-world range (€/km) ❌ 33,20 €/km ✅ 24,59 €/km
Weight per km of real-world range (kg/km) ❌ 0,94 kg/km ✅ 0,54 kg/km
Wh per km efficiency (Wh/km) ❌ 16,00 Wh/km ✅ 15,35 Wh/km
Power to max speed ratio (W/km/h) ❌ 18,00 W/km/h ✅ 19,96 W/km/h
Weight to power ratio (kg/W) ❌ 0,0367 kg/W ✅ 0,0353 kg/W
Average charging speed (W) ✅ 70,00 W ❌ 55,44 W

These metrics put hard numbers on different aspects of value and efficiency: how much battery and speed you get for your money, how much mass you drag around for each unit of power or range, and how quickly you can refill the tank. Lower values favour lightness, efficiency and cost-effectiveness, while the "higher wins" rows highlight brute-force performance (power per speed) and how fast the charger can push energy back into the pack.

Author's Category Battle

Category SOFLOW SO4 Gen 3 DUCATI PRO-III R
Weight ✅ Slightly lighter overall ❌ A bit heavier
Range ❌ Short real-world range ✅ Comfortable multi-day range
Max Speed ✅ Legal, but nothing extra ✅ Same legal limit
Power ❌ Adequate, nothing more ✅ Stronger, more shove
Battery Size ❌ Small for class ✅ Generous commuter pack
Suspension ❌ None, basic tyres only ❌ None, basic tyres only
Design ❌ Functional, a bit generic ✅ Distinctive, genuinely premium
Safety ✅ Dual discs, high load ❌ Less redundancy braking
Practicality ✅ High load, quick charge ❌ Long charge, lower load
Comfort ✅ Wide deck, compliant tyres ❌ Sporty, slightly harsher
Features ❌ Fewer extras overall ✅ NFC, USB, big display
Serviceability ✅ Simple, generic components ❌ Slightly more proprietary
Customer Support ❌ Mixed, some slow cases ✅ Stronger licensed network
Fun Factor ❌ Sensible, not exciting ✅ Zippy, feels special
Build Quality ✅ Sturdy, overbuilt frame ❌ Great frame, some plastics
Component Quality ❌ Basic finishing touches ✅ Better cockpit, details
Brand Name ❌ Lesser-known, regional ✅ Ducati badge power
Community ❌ Smaller, more localised ✅ Larger, more visible
Lights (visibility) ✅ Good, indicators included ✅ Also strong, indicators
Lights (illumination) ❌ Adequate but modest ✅ Brighter, better beam
Acceleration ❌ Adequate, fades with load ✅ Stronger, more consistent
Arrive with smile factor ❌ Satisfying, rarely thrilling ✅ Feels special every ride
Arrive relaxed factor ✅ Predictable, easy-going ❌ Sporty, a bit taut
Charging speed ✅ Reasonably quick refill ❌ Long overnight charge
Reliability ✅ Solid hardware reputation ✅ Generally dependable electronics
Folded practicality ❌ Wide bars, awkward width ✅ Tidy, compact fold
Ease of transport ✅ Slightly lighter, manageable ❌ Heavier, key dependent
Handling ❌ Stable, but uninspiring ✅ Sharper, more precise
Braking performance ✅ Strong dual mechanical ❌ Mixed electronic/mechanical
Riding position ✅ Comfortable, neutral stance ✅ Sporty but ergonomic
Handlebar quality ❌ Basic, functional ✅ Nicer controls, layout
Throttle response ❌ Smooth but modest ✅ Stronger, better tuned
Dashboard/Display ❌ Simple, smaller screen ✅ Large, bright, informative
Security (locking) ✅ NFC, app lock capable ✅ NFC key, strong deterrent
Weather protection ✅ Typical IPX4, fine ✅ Same rating, similar
Resale value ❌ Less brand pull ✅ Ducati name resells
Tuning potential ✅ Generic platform, hackable ❌ More locked, brand-focused
Ease of maintenance ✅ Simple mechanics, easy ❌ Some proprietary bits
Value for Money ✅ Strong if heavy rider ❌ Brand tax for average rider

Overall Winner Declaration

Winner

In the Numbers Freaks Corner, the SOFLOW SO4 Gen 3 scores 3 points against the DUCATI PRO-III R's 7. In the Author's Category Battle, the SOFLOW SO4 Gen 3 gets 19 ✅ versus 25 ✅ for DUCATI PRO-III R (with a few ties sprinkled in).

Totals: SOFLOW SO4 Gen 3 scores 22, DUCATI PRO-III R scores 32.

Based on the scoring, the DUCATI PRO-III R is our overall winner. In the end, the Ducati PRO-III R feels like the scooter you secretly wanted all along: it rides with more intent, looks and feels premium, and has the range to make spontaneous detours feel easy rather than stressful. The SoFlow SO4 Gen 3 earns respect as a sturdy, honest workhorse - especially if you're a heavier rider - but it rarely manages to be more than that. If you value simple robustness and a high weight rating above everything else, the SoFlow will quietly get on with the job. If you want your daily commute to feel a little bit special, and you're willing to pay for that feeling, the Ducati is the one that will keep putting a grin on your face every time you press the throttle.

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.