SOFLOW SO4 Gen 3 vs XIAOMI Pro 2 - Which "Almost Great" Commuter Should You Actually Buy?

SOFLOW SO4 Gen 3
SOFLOW

SO4 Gen 3

581 € View full specs →
VS
XIAOMI Pro 2 🏆 Winner
XIAOMI

Pro 2

642 € View full specs →
Parameter SOFLOW SO4 Gen 3 XIAOMI Pro 2
Price 581 € 642 €
🏎 Top Speed 20 km/h 25 km/h
🔋 Range 30 km 35 km
Weight 16.5 kg 14.2 kg
Power 900 W 600 W
🔌 Voltage 36 V 37 V
🔋 Battery 280 Wh 446 Wh
Wheel Size 10 " 8.5 "
👤 Max Load 150 kg 100 kg
Speed Comparison

Fast Answer for Busy Riders ⚡ (TL;DR)

The Xiaomi Pro 2 is the overall winner here: it goes noticeably further on a charge, is lighter to carry, has a huge ecosystem of parts and tutorials, and simply feels like the more rounded everyday tool for most riders. The SOFLOW SO4 Gen 3 fights back with much higher load capacity, beefier dual-disc brakes and integrated indicators, making it a better choice for heavier riders and safety-obsessed commuters in strictly regulated countries.

If you are under roughly 100 kg, ride mostly on tarmac and value range, repairability and resale value, the Xiaomi Pro 2 makes more sense. If you are closer to the 120-140 kg mark, or you absolutely want turn signals and "tank-like" frame stiffness and can live with shorter range, the SO4 Gen 3 becomes the smarter compromise.

Both are decent but imperfect commuters; the trick is picking the one whose flaws bother you less. Read on, because the devil - and the fun - is in the details.

When you have spent far too many evenings testing scooters instead of having a social life, you start to recognise a pattern: most mid-range commuters are some variation on the same idea. Sturdy aluminium frame, no suspension, air tyres, legal top speed, a "wow" range claim that reality happily trims down. The SOFLOW SO4 Gen 3 and the Xiaomi Pro 2 are textbook examples of that formula.

I've put plenty of kilometres on both, and they land in a similar category: sensible, regulation-friendly commuters that want to be your daily transport, not your weekend adrenaline fix. The Xiaomi comes from the big-tech, mass-market side of the fence; the SoFlow leans on "Swiss design" messaging and brute-load capacity. Both work. Neither is magic.

Think of the SO4 Gen 3 as the gym-going, high-vis commuter who carries too much stuff, and the Xiaomi Pro 2 as the slim office worker who knows every tram timetable by heart and hates wasting energy. If that picture makes you smile, keep reading - it's also not far from the truth.

Who Are These For, and Why Compare Them?

SOFLOW SO4 Gen 3XIAOMI Pro 2

These two live in the same broad price and performance neighbourhood: mid-range urban scooters that stick to the legal top-speed limits in Europe, skip fancy suspension, and aim squarely at daily city commuting. They are both pitched as "grown-up" alternatives to the flimsy cheap stuff, without venturing into the heavyweight, dual-motor madness.

The bigger picture: you're looking at scooters that should get you from home to office and back, maybe with a café detour, without drama. They both run on air-filled tyres, have proper disc brakes and app connectivity, and they both avoid silly gimmicks. On paper they are rivals; in practice, they aim at slightly different humans.

The Xiaomi Pro 2 is for the average-build rider who wants range, a light-ish scooter and a proven ecosystem. The SOFLOW SO4 Gen 3 is for riders who break the "average-build" mould-heavier riders, backpack haulers, or anyone who values a stouter chassis and on-board indicators over an extra few kilometres of battery.

Design & Build Quality

Specs Comparison

Park them side by side and you see two design philosophies immediately. The Xiaomi Pro 2 is classic Xiaomi minimalism: clean lines, dark matte frame, discreet red accents where needed, and a slim, almost delicate silhouette. It looks like consumer electronics with wheels, in a good way.

The SO4 Gen 3 goes for "utilitarian with attitude": chunkier stem, visibly thicker welds, and that black-with-green accent scheme shouting a bit louder. In your hands, the SoFlow feels more like a tool; the Xiaomi feels more like a gadget that happens to be tough.

In terms of build, the SoFlow frame is clearly overbuilt for its class. You feel it when you bounce the deck or rock the stem; there's a reassuring lack of flex. That overengineering pays off in its significantly higher load rating, but you do carry that in extra kilos. The Xiaomi's frame is still solid, just optimised more aggressively for lightness and portability, with less headroom for very heavy riders.

Both folding mechanisms are simple stem hinges. The Xiaomi's fold is famously quick and tidy, with that bell-to-mudguard hook that has launched a thousand clones. Long-term, its hinge can develop a bit of play if you ride a lot on rough surfaces; it's not catastrophic, but you start to hear and feel it. The SoFlow hinge feels burlier out of the box, and the whole front assembly gives the impression of being designed with heavier loads in mind rather than "just enough for 100 kg".

On cockpit design, I slightly prefer the cleaner integration of the SoFlow's display into the stem, which looks less like an afterthought. Xiaomi's little dashboard still does the job nicely and is very readable, but it's more utilitarian plastic than pretty. Neither cockpit is bad, neither will wow you; they're workmanlike, not aspirational.

Ride Comfort & Handling

Let's be clear: neither of these scooters has suspension. Your "shocks" are your knees and some compressed air in the tyres. But they ride quite differently.

The SO4 Gen 3 rolls on larger 10-inch tyres, and that alone changes the character. At city cruising speeds it feels more planted and calmer in a straight line. You notice it when you cross tram tracks or roll over patchy asphalt; the bigger wheels climb over imperfections rather than falling into them. After a few kilometres of broken pavement, my knees still complained - but less loudly than on smaller-wheeled scooters.

The Xiaomi Pro 2 uses the classic 8,5-inch format. On smooth bike lanes it feels light and nimble, almost playful. Steering is easy, and weaving through slower cyclists or pedestrians feels natural. The downside appears the first time you tackle a stretch of nasty cobblestones or root-cracked paths: the jitter comes through the bars and deck more sharply. After a 5 km commute on rougher surfaces, my hands definitely knew they'd been working.

Deck comfort is a quiet win for the SoFlow. Its deck is meaningfully wider, letting you experiment with stance - sideways, staggered, somewhere in between. On longer rides, being able to shift your feet around keeps fatigue at bay. The Xiaomi deck is fine in classic scooter stance - one foot ahead, one behind - but there's less indulging your inner surfer.

Handling-wise, the Xiaomi feels a bit more agile and flickable; the SoFlow feels more stable and serious. If your commute is mostly smooth lanes with lots of manoeuvring, the Xiaomi's lightness is pleasant. If you regularly meet questionable asphalt and like a more "locked-in" feel, the SO4 Gen 3 has the edge.

Performance

On paper the numbers don't look wildly different, but the riding character does. The SoFlow's rear motor is rated stronger than the Xiaomi's front unit, and that shows up mostly in how it behaves when the going gets heavy - literally.

With an average-weight rider, both get up to legal top speed briskly enough for city use. The Xiaomi's throttle map is smooth and predictable; pull away in Sport mode and you sweep up to pace without surprises. It feels like something a big manufacturer tuned cautiously - no hysterics, just sensible shove.

The SO4 Gen 3 has a bit more "grunt" off the line, especially if you're on the heavier side or hitting a mild incline. Up short, steep ramps, the SoFlow simply digs in better. It's not a rocket, but you feel that extra torque when you're starting on an uphill or when you load it up. That rear-drive push also gives the scooter a slightly more "motorbike-ish" sensation when you accelerate out of corners.

At higher speeds, both are limited to the usual 20-25 km/h region depending on local law, so there's no real winner at the top end. They cruise happily at their caps; you won't get much more, legally or otherwise, without firmware games on the Xiaomi or hardware surgery on the SoFlow.

Braking is where character really diverges. The SO4 Gen 3 has mechanical discs front and rear. When properly adjusted, the bite is strong and reassuring, with lots of mechanical feedback. If you like feeling the bike-like clamping on both wheels, this is your thing - though you might have to live with the occasional squeal and remember to tweak the calipers from time to time.

The Xiaomi pairs a rear disc with front electronic braking and regenerative drag. In practice you get a progressive, controlled slowdown, with useful energy recapture but slightly less "emergency anchor" feel than twin discs. For everyday commuting it's more than adequate; you just don't get that same sensation of hardware overkill that the SoFlow's dual discs provide.

On hills, with an average rider, both manage typical city gradients. With heavier riders, the Xiaomi starts to suffer sooner, dropping speed and occasionally begging for a push on nastier slopes. The SoFlow holds its dignity longer - still not heroic, but less of a struggle when you and your backpack are tipping the scales.

Battery & Range

This one is much less subtle. Real-world, the Xiaomi Pro 2 simply goes further. Its battery pack is significantly larger, and in mixed city riding at full legal speed it comfortably outlasts the SO4 Gen 3.

On the Pro 2, my typical urban loop of roughly 20-25 km still leaves a decent buffer. Ride more gently in the slower modes and you can stretch things pleasantly; ride flat-out everywhere and stop-start like a lunatic and you'll still get what most commuters need for a full day. Range anxiety is present only if your commute is genuinely long or hilly.

On the SoFlow, the story is more "short, sharp commute specialist". With realistic riding (full speed, some stops, a rider that isn't a featherweight), you're looking at something in the mid-teens to maybe high-teens of kilometres before the battery gauge starts making you do mental maths. If your one-way trip is in the 7-8 km ballpark and you can charge at work, you're fine. If you dream of leisurely 30 km Sunday riverside loops - this is not that scooter.

The only trick the SoFlow pulls back is charging time. Its smaller battery refills notably faster, so you can genuinely arrive, plug in, and be topped up by the time you leave the office. The Xiaomi's pack is more of an overnight-or-full-workday affair; quick lunchtime top-ups barely move the needle. You trade endurance for refill speed.

Efficiency-wise, the Xiaomi uses its watt-hours more frugally, which isn't surprising given the mature firmware and KERS tuning. The SoFlow feels like it spends a bit more juice to deliver that extra torque, especially with heavier riders. Understandable, but it doesn't help the already modest battery size.

Portability & Practicality

In the "can I actually live with this thing every day" category, weight and folding manners matter more than raw power, and the Xiaomi Pro 2 has a clear advantage.

The Pro 2 is substantially lighter. Carrying it up a flight or two of stairs is annoying but manageable, even one-handed for shorter bursts. Getting on and off trains or into car boots becomes part of the routine rather than a gym session. If your lifestyle involves frequent lifting - third-floor flat, lots of public transport - those extra kilos you're not carrying really add up.

The SO4 Gen 3 sits a couple of kilos higher, and you feel it. One or two flights of stairs? Fine. Five? You'll question your life choices by floor three. It's still far from the 25 kg monsters, but it's definitely in the "think before you carry" bracket.

Both fold quickly, both have non-folding handlebars so the width stays similar when collapsed. In overcrowded trams that side-to-side bulk is sometimes more annoying than the length. The Xiaomi's folded package is a bit more svelte, helped by its lower weight; the SoFlow feels chunkier to swing about in tight corridors.

For everyday chores - popping into a shop, rolling into a lift, parking next to your desk - both behave sensibly. Kickstands are fine, decks sit low enough for easy hopping on and off. The Xiaomi wins on the little practical details around ecosystem: bag hooks, third-party accessories, protective cable sleeves and all the tiny add-ons exist in abundance. With the SoFlow you're more at the mercy of generic parts or the brand's own offerings.

Safety

Both scooters take safety seriously, but they prioritise different aspects.

The SoFlow goes heavy on hardware and visibility. Dual mechanical discs give strong, direct stopping force on both wheels. The integrated handlebar indicators are a genuinely useful urban feature: being able to signal without taking a hand off the bars is underrated until you try it in dense traffic. Add a bright headlight and a certified rear light, and you have a package that's clearly built with European regulations and traffic interaction in mind.

The Xiaomi's safety story leans on refinement and electronics. The combined mechanical rear disc and front electronic braking with anti-lock logic offers very controlled deceleration, especially in slippery conditions where full mechanical front braking might catch you out. The upgraded headlight is plenty bright for typical commuting speeds, and the improved rear light plus reflectors all around make it surprisingly visible when car headlights hit you from any angle.

Tyres: the SoFlow's larger 10-inch pneumatics help you glide over road defects and give a bit more margin against pothole-induced drama. The Xiaomi's smaller tyres are still air-filled and grippy but demand a little more vigilance. Hit the same pothole on both at identical speed and you're simply happier on the 10-inch setup.

Stability at top legal speed is good on both, with a slight nod to the SoFlow for feeling more "planted," and to the Xiaomi for being easy to manage in slippery conditions thanks to its electronic braking tuning. Pick your poison: overbuilt hardware plus indicators (SoFlow) or more polished brake logic and mega-community knowledge on how to ride and set it up (Xiaomi).

Community Feedback

SOFLOW SO4 Gen 3 XIAOMI Pro 2
What riders love
  • Very solid frame, feels tough
  • Handles heavier riders with confidence
  • Strong dual-disc braking
  • Integrated turn signals and NFC lock
  • Stable at speed, wide comfortable deck
What riders love
  • Proven reliability over thousands of km
  • Great real-world range for its weight
  • Huge ecosystem of parts and mods
  • Easy folding and good portability
  • Strong resale value and community support
What riders complain about
  • Real range much lower than claim
  • Small battery for the price
  • No suspension, harsh on big bumps
  • Occasional brake noise and setup fiddling
  • Mixed reviews on customer service and app
What riders complain about
  • No suspension, tiring on rough roads
  • Painful inner-tube tyre changes
  • Stem wobble if hinge not maintained
  • Weak on hills with heavier riders
  • Very slow full recharge time

Price & Value

Both scooters sit in that "serious money, but not crazy" bracket. You're not buying a toy, but you're also not emptying the savings account for dual motors and hydraulic suspension.

The Xiaomi Pro 2, despite being a little pricier at retail, usually gives you more mobility per euro for a typical rider: more usable range, lighter weight, and a brand with one of the strongest second-hand markets in the scooter world. Long term, the combination of cheap parts, abundant third-party spares and high resale price quietly tilts the value equation in Xiaomi's favour for the average-sized commuter.

The SoFlow SO4 Gen 3 is much more specialised value. For riders well under its high load limit, you are essentially funding a stronger frame and better brakes that you might never truly exploit, while living with a smaller battery. For heavier riders, though, that same overbuilt chassis and torque tuning suddenly make it a bargain: to get a scooter that officially supports that kind of weight from most other brands, you start creeping toward significantly higher price brackets.

So: if you're in the standard weight range and want the best "km per euro" story, the Pro 2 edges it. If you're solidly above average weight and would rather sacrifice some range than risk overstressing a lighter frame, the SO4 Gen 3's price makes more sense.

Service & Parts Availability

This is where the Xiaomi looks at the SoFlow, pats it on the shoulder and says "don't worry, you'll grow up one day."

For the Pro 2, parts availability is borderline ridiculous. Need a new mudguard, dashboard, folding bolt, controller, or an entire replacement frame? Someone sells it. Often several someones, at competing prices, with video tutorials attached. Many bike shops now know how to service Xiaomi scooters specifically, and independent scooter workshops live off them.

With the SO4 Gen 3, you're more dependent on official channels or generic components that fit "well enough". Wear parts like brake pads and tyres are easy; model-specific plastics, electronics and frame bits are less so. The brand exists, it's not some nameless white-label, but turnaround times and availability reports from riders are patchier, especially outside its core markets.

If you value being able to keep a scooter running indefinitely with a bit of DIY and some online shopping, the Xiaomi is in a different league. The SoFlow is serviceable, but not exactly an open-book platform.

Pros & Cons Summary

SOFLOW SO4 Gen 3 XIAOMI Pro 2
Pros
  • Very high load capacity
  • Strong dual-disc brakes
  • Integrated turn signals & NFC lock
  • Wide, stable deck and 10-inch tyres
  • Good torque for hills with heavier riders
  • Excellent real-world range for weight
  • Lighter and easier to carry
  • Huge parts ecosystem and community
  • Mature, predictable ride and app
  • Strong resale value and proven reliability
Cons
  • Modest real-world range
  • Heavier than Xiaomi for same class
  • No suspension, can be harsh
  • Customer service feedback is mixed
  • Value suffers if you're a light rider
  • No suspension, harsh on bad roads
  • Slow full recharge
  • Painful tyre maintenance
  • Not ideal for heavy riders
  • Folding hinge needs periodic attention

Parameters Comparison

Parameter SOFLOW SO4 Gen 3 XIAOMI Pro 2
Motor power (nominal) 450 W rear hub 300 W front hub
Top speed (region-typical) 20-25 km/h (capped) 25 km/h (capped)
Battery capacity ca. 280 Wh ca. 446 Wh
Claimed max range 30 km 45 km
Realistic range (avg rider) ca. 15-20 km ca. 25-35 km
Weight 16,5 kg 14,2 kg
Max rider load 150 kg 100 kg
Brakes Front + rear mechanical disc Rear disc + front electronic (E-ABS)
Suspension None (pneumatic tyres) None (pneumatic tyres)
Tyres 10-inch pneumatic 8,5-inch pneumatic
Water resistance IPX4 IP54
Charging time (0-100 %) ca. 3-5 h ca. 8-9 h
Approx. price 581 € 642 €

Final Verdict - Which Should You Choose?

For most riders in most cities, the Xiaomi Pro 2 is the more complete package. It covers typical commuting distances with ease, is meaningfully lighter to carry, comes backed by a huge community and parts ecosystem, and has a track record that many newer models would kill for. You're not buying excitement; you're buying a known quantity that quietly gets the job done day after day.

The SOFLOW SO4 Gen 3 isn't a bad scooter at all, but it's more of a niche tool. If you are a heavier rider who regularly makes lesser scooters feel nervous under your feet, the SoFlow's sturdier frame, higher load capacity and stronger hardware braking make it a far more sensible choice than stretching the Xiaomi beyond its comfort zone. You'll sacrifice range and portability, but you'll gain stability and peace of mind.

If you're under roughly 100 kg and your commute fits within the Pro 2's generous real-world range, go Xiaomi and enjoy the convenience and support that comes with mass adoption. If you're above that, or frequently carrying substantial weight and need a scooter that feels like it was built for adults who eat full meals, the SO4 Gen 3 quietly becomes the safer bet - just enter the relationship knowing it's a short-range partnership.

Numbers Freaks Corner

Metric SOFLOW SO4 Gen 3 XIAOMI Pro 2
Price per Wh (€/Wh) ❌ 2,08 €/Wh ✅ 1,44 €/Wh
Price per km/h of top speed (€/km/h) ✅ 23,24 €/km/h ❌ 25,68 €/km/h
Weight per Wh (g/Wh) ❌ 58,93 g/Wh ✅ 31,84 g/Wh
Weight per km/h (kg/km/h) ❌ 0,66 kg/km/h ✅ 0,57 kg/km/h
Price per km of real-world range (€/km) ❌ 33,20 €/km ✅ 21,40 €/km
Weight per km of real-world range (kg/km) ❌ 0,94 kg/km ✅ 0,47 kg/km
Wh per km efficiency (Wh/km) ❌ 16,00 Wh/km ✅ 14,87 Wh/km
Power to max speed ratio (W/km/h) ✅ 18,00 W/km/h ❌ 12,00 W/km/h
Weight to power ratio (kg/W) ✅ 0,0367 kg/W ❌ 0,0473 kg/W
Average charging speed (W) ✅ 70,00 W ❌ 52,47 W

These metrics break down how efficiently each scooter uses your money, weight and time. Price-per-Wh and price-per-km tell you how much you're paying for battery and real-world distance. Weight-based figures show how much mass you haul around for each unit of energy, speed or range. Wh per km reflects how economical the scooter is to run. Power-to-speed and weight-to-power ratios describe how much muscle you get relative to top speed and mass, while average charging speed reveals how fast the battery fills in terms of pure watts pumped in per hour.

Author's Category Battle

Category SOFLOW SO4 Gen 3 XIAOMI Pro 2
Weight ❌ Heavier to lug around ✅ Noticeably lighter to carry
Range ❌ Shorter daily real range ✅ Comfortably longer commutes
Max Speed ✅ Comparable legal cap ✅ Comparable legal cap
Power ✅ Stronger nominal motor ❌ Weaker, especially with load
Battery Size ❌ Small pack for class ✅ Much larger capacity
Suspension ❌ No suspension fitted ❌ No suspension fitted
Design ❌ Chunky, functional look ✅ Sleek, iconic minimalism
Safety ✅ Dual discs, indicators ❌ No indicators, weaker bite
Practicality ❌ Heavier, shorter legs ✅ Better daily all-rounder
Comfort ✅ Wider deck, bigger tyres ❌ Harsher over rough stuff
Features ✅ NFC, turn signals onboard ❌ Plainer feature set stock
Serviceability ❌ Limited model-specific parts ✅ Parts and guides everywhere
Customer Support ❌ Mixed feedback, slower help ✅ Wider authorised network
Fun Factor ✅ Torquier, more planted ❌ Sensible rather than exciting
Build Quality ✅ Very solid, stiff frame ❌ Hinge and fender weaker
Component Quality ❌ Decent but unremarkable ✅ Mature, proven components
Brand Name ❌ Smaller, region-focused ✅ Global, well-known brand
Community ❌ Small, limited resources ✅ Huge, mods and forums
Lights (visibility) ✅ Indicators boost visibility ❌ No turn signals stock
Lights (illumination) ❌ Adequate but nothing special ✅ Strong, well-aimed headlight
Acceleration ✅ Better shove off line ❌ Softer, especially loaded
Arrive with smile factor ✅ Torquey, sturdy feel ❌ Competent but less character
Arrive relaxed factor ❌ Range anxiety sooner ✅ Range and predictability
Charging speed ✅ Much quicker full charge ❌ Long overnight charging
Reliability ❌ Fewer long-term data points ✅ Proven over many years
Folded practicality ❌ Bulkier, heavier package ✅ Slimmer, easier to stash
Ease of transport ❌ Heftier on stairs, trains ✅ Friendlier to carry around
Handling ✅ Stable, confidence-inspiring ✅ Nimble, easy to steer
Braking performance ✅ Strong twin mechanical discs ❌ Less outright mechanical bite
Riding position ✅ Wide deck, comfy stance ❌ Narrower, less adjustable
Handlebar quality ❌ Functional but basic ✅ Refined, nicer finishing
Throttle response ✅ Strong, smooth enough ✅ Very smooth and predictable
Dashboard/Display ✅ Clean stem integration ❌ More plasticky, exposed
Security (locking) ✅ NFC immobiliser helps ❌ Only app motor lock
Weather protection ❌ Lower IP, more cautious ✅ Slightly better rating
Resale value ❌ Modest, less demand ✅ Strong second-hand interest
Tuning potential ❌ Limited mods, niche base ✅ Huge firmware, hardware scene
Ease of maintenance ❌ Parts harder to source ✅ Tutorials and spares abound
Value for Money ❌ Niche value, weaker for light ✅ Strong all-round for average

Overall Winner Declaration

Winner

In the Numbers Freaks Corner, the SOFLOW SO4 Gen 3 scores 4 points against the XIAOMI Pro 2's 6. In the Author's Category Battle, the SOFLOW SO4 Gen 3 gets 17 ✅ versus 24 ✅ for XIAOMI Pro 2 (with a few ties sprinkled in).

Totals: SOFLOW SO4 Gen 3 scores 21, XIAOMI Pro 2 scores 30.

Based on the scoring, the XIAOMI Pro 2 is our overall winner. In the end, the Xiaomi Pro 2 simply feels like the more rounded companion for everyday life: it asks fewer compromises, fits more riders' needs, and quietly gets on with the job while the world around you argues about specs. The SOFLOW SO4 Gen 3 has its charms - the sturdiness, the torque, the sense that it was built for humans who don't weigh what marketing departments assume - but it feels more like a specialised tool than a universal recommendation. If you want an easy, low-drama relationship with your scooter, the Pro 2 is the safer emotional bet. If you're heavier, value that "built like a small bridge" feeling and can live with shorter range, the SoFlow will still put a grin on your face - just make sure your commute matches its limits before you swipe your card.

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.