STREETBOOSTER Sirius vs EGRET X SERIES - Solid German Commuters, But Which One Actually Deserves Your Money?

STREETBOOSTER Sirius
STREETBOOSTER

Sirius

899 € View full specs →
VS
EGRET X SERIES 🏆 Winner
EGRET

X SERIES

1 297 € View full specs →
Parameter STREETBOOSTER Sirius EGRET X SERIES
Price 899 € 1 297 €
🏎 Top Speed 22 km/h 20 km/h
🔋 Range 40 km 55 km
Weight 20.3 kg 21.0 kg
Power 1350 W
🔌 Voltage 36 V 48 V
🔋 Battery 338 Wh 499 Wh
Wheel Size 10 " 12.5 "
👤 Max Load 120 kg 120 kg
Speed Comparison

Fast Answer for Busy Riders ⚡ (TL;DR)

The Egret X Series edges out the STREETBOOSTER Sirius overall thanks to its far superior comfort, range, and big-wheel stability that makes daily riding feel less like surviving and more like cruising. If you want to glide over cobblestones, forget about range anxiety, and don't mind a heavier, pricier machine, Egret is the better long-term companion. The Sirius still makes sense if you live in an apartment, care a lot about a removable battery, and want a simpler, more compact, strictly-legal commuter without chasing big numbers. Both are sensible, grown-up scooters - but only one really feels like it's built for the rough reality of European streets.

If you want the full story - including where each one quietly annoys you after a few weeks of real commuting - keep reading.

The STREETBOOSTER Sirius and the Egret X Series come from the same country and broadly the same mindset: "enough with the toy scooters, let's build something that actually works every day". I've put plenty of kilometres on both, from shiny city bike lanes to the usual European mix of broken asphalt, tram tracks and wet cobbles. On paper they're both respectable commuters; on the road, their differences show up very quickly.

The Sirius aims to be the grown-up, office-friendly all-rounder with a removable battery and clean design - think: practical urban professional who still takes the stairs. The Egret X Series plays the SUV card: big wheels, big battery options, big stability, and a price tag that politely suggests you should be serious about using it.

They're close enough in purpose that many buyers will cross-shop them - and different enough that choosing the wrong one will get annoying fast. Let's break down where each one quietly shines and where the compromises start to bite.

Who Are These For, and Why Compare Them?

STREETBOOSTER SiriusEGRET X SERIES

Both scooters live in the premium-commuter bracket: not cheap supermarket toys, not insane hyper-scooters, but "I replace several car or train trips a week with this" territory. They target riders who want reliable transport, not weekend-thrill machines.

The Sirius is pitched as the sensible German commuter with a removable battery, mid-range weight and road-legal top speed that's hard-limited for compliance. It's the scooter for people who live in flats, charge upstairs, and mostly ride on tarmac with the occasional bad pavement thrown in.

The Egret X Series (Core / Prime / Ultra) is the "city SUV": same basic legal top speed, much bigger wheels, more torque, and battery options that stretch into "charge once a week" territory. It suits riders with longer routes, worse roads, and slightly deeper pockets.

They're natural competitors if:
- You're in Europe and want a high-quality, legal commuter
- You care more about reliability and comfort than wild top speed
- You're choosing between "swappable battery and portability" (Sirius) and "big wheels and big range" (Egret)

Design & Build Quality

Specs Comparison

In the hand, the two scooters immediately tell different design stories.

The Sirius goes for a monolithic, minimalist look. The "no visible screws" philosophy works: the frame looks like a single solid piece, cables are well tucked away, and the deck with its rubber mat feels tidy and office-friendly. It's the sort of scooter you can roll into a co-working space without looking like you're about to do stunts in the reception.

The Egret X, on the other hand, is proudly industrial. Fat tubular frame, exposed but neatly internal-routed cabling, big fork, metal fenders - it looks like something designed to survive careless municipal infrastructure. Where the Sirius looks like consumer electronics, the Egret looks like a small vehicle.

In terms of build, both are miles ahead of generic no-name imports. Welding on the Egret is cleaner, the paint slightly tougher, and the overall impression just that bit more "this will still feel tight after a few thousand kilometres". The Sirius is solid, but you're more aware it's a commuter scooter rather than a mini-tank.

Ergonomically, the Sirius has a sensible deck width and a comfortable bar height for average-height riders. The Egret gives more deck space and a broader cockpit, which heavy or tall riders will appreciate on longer stretches. It feels "roomier", especially when you start shifting your weight around on bad surfaces.

Design philosophy in one sentence: the Sirius wants to disappear into your daily routine, the Egret wants to look like it was overbuilt for it.

Ride Comfort & Handling

This is where the gap between them really opens.

The Sirius runs without mechanical suspension and relies entirely on its relatively large, tubeless air tyres to take the sting out of the road. On decent asphalt and mildly broken city streets, it does an acceptable job. You'll feel the texture of the surface, but your knees won't file official complaints. Hit a run of old cobblestones or a long section of broken pavement and you'll quickly remember there are no springs helping you here. After several kilometres of that, it gets tiring rather than brutal - but still, tiring.

The Egret X combines much larger tyres with a front suspension fork. That changes the game. On the same cobbled sections where the Sirius chatters and nudges your joints, the Egret simply rolls through with a dull thump and carries on. Tram tracks that you consciously line up for on the Sirius become a non-event on the Egret. It tracks straighter at speed, and in gusty crosswinds it feels less twitchy thanks to the extra mass and wheel size.

Cornering-wise, the Sirius is nimble and easy to place. It feels lighter under you and flicks side to side readily in traffic, which is nice for weaving around pedestrians and parked cars. The Egret is more planted than playful: it prefers smooth, sweeping lines to tight, reactive slalom moves. It will do them, but you always feel you're manoeuvring more scooter.

If your daily route is mostly smooth cycle lanes with only occasional rough patches, the Sirius is perfectly serviceable. If your city serves the usual European cocktail of cracks, cobbles and "temporary" patches that have been there since 2017, the Egret's comfort advantage is hard to overstate.

Performance

Both scooters are legally capped on speed in their home markets, so don't expect either to turn into a rocket ship. The way they get you to that legal limit, though, feels different.

The Sirius has enough punch to feel lively off the line. For its class, the initial shove is respectable; pulling away from traffic lights and joining bike lanes feels easy, not stressful. Once you're at its capped speed, it just sits there, humming along. On moderate inclines, it holds its own; on steeper hills, you'll feel it working, but it doesn't completely give up unless you're really trying to torture it with high rider weight and long gradients.

The Egret X - especially in Prime and Ultra guise - simply pulls harder. The extra torque is immediately obvious when you load it up or hit a proper hill. Where the Sirius starts to sound like it's writing a polite letter to the laws of physics, the Egret just trudges upwards in a more confident, diesel-like way. Acceleration is strong but smooth - there's no violent jerk, just a firm push that stays consistent even when the battery isn't fresh off the charger.

Braking also splits them. The Sirius uses a front drum paired with regenerative rear braking. It's quiet, progressive and low-maintenance, very commuter-friendly. Emergency stops are acceptable, but you do feel the limitations of a single mechanical contact patch plus motor braking.

The Egret's dual mechanical discs with large rotors provide more absolute stopping power and better modulation when you're carrying speed down a hill or riding wet. You need a bit more finger effort than with hydraulics, but you also get very predictable, repeatable braking. On longer, faster descents or with a heavy rider, the Egret inspires more confidence when you need to shed speed quickly.

If your riding is mostly flat city runs with only gentle gradients, the Sirius performs fine and feels adequately brisk. If you're heavier, live in a hilly area, or just want the scooter that shrugs at climbs, the Egret is the clearly stronger performer.

Battery & Range

Range is one of the most practical differences between them.

The Sirius has a relatively modest fixed battery size, but it makes up for that with its removable pack. In real-world conditions and riding at full legal pace, you're realistically looking at a commute that comfortably covers typical inner-city needs, with some reserve. The important bit is this: if you buy a second battery, your range effectively doubles without having to lug an even heavier scooter. Pop the battery out, take it upstairs, charge in the office, done.

The Egret X goes the other way: non-removable, but significantly larger batteries, especially in the Ultra model. Here we're talking about ranges where a normal commuter can ride all week and charge once on Sunday evening. Even the mid-tier Prime has a very comfortable cushion. Range anxiety pretty much disappears unless you're doing truly long-distance touring or you're extremely heavy and constantly in hills.

Efficiency-wise, the Sirius does decently for its class, helped by the smaller pack and lower weight. The Egret, despite having more mass and bigger tyres, is more efficient than you'd expect once you're up to speed - those big wheels just roll. But physics is physics: you're still moving more weight, so per kilometre you will usually consume more energy than on the Sirius.

Charging times track the battery sizes. Sirius: quick-ish to a high percentage, especially convenient if you bring the pack inside to a wall socket. Egret: fine for overnight charges, but the biggest pack will need a full night if you run it low.

So: if you love the idea of swapping batteries like camera packs and hate being tied to where the scooter is parked, the Sirius has a real advantage. If you just want to forget about the battery entirely for days at a time and don't care that it's fixed in the deck, Egret wins by brute capacity.

Portability & Practicality

Neither of these scooters is what I'd call "lift-with-two-fingers" light, but there are shades of pain.

The Sirius sits in that awkward middle ground: light enough that you can haul it up a few stairs or into a car trunk without wrecking your back, heavy enough that doing so every day will get old quickly. The folding mechanism is simple, reasonably fast, and the folded package is still fairly compact. On a train at rush hour, it's manageable if not exactly invisible.

The Egret is another story. Even the lightest Core version is firmly into "think before you lift" territory, and the Ultra is heavier still. The fold is solid and reassuring, but the big wheels and broad handlebar mean the folded shape is bulky. Carrying it up several flights of stairs daily is a good way to learn exactly which muscles you haven't trained.

In practical urban life, the Sirius is better for regular multi-modal commuting: short carry into the flat, up a small staircase, on and off trains. The removable battery also means you don't need to drag the whole, slightly dirty scooter through your living room just to charge.

The Egret is more of a "roll from garage to street, maybe into a lift, but please don't make me carry this" scooter. If your use case is mostly door-to-door riding with minimal lifting, the practicality downside is tolerable. If you're in a fourth-floor walk-up, it's a daily workout disguised as micromobility.

Safety

Both brands take safety more seriously than the average import, which is refreshing.

On the Sirius, the hybrid braking plus regenerative system works well in urban traffic and is pleasantly low-maintenance. The integrated headlamp is decently bright and mounted at a sensible height. The real win is the bar-end indicators: you never have to take a hand off the grips to signal, and cars notice them. Tyres are a good compromise between grip and robustness, and the scooter feels stable enough at its limited top speed, though sharper hits can unsettle the chassis since there's no suspension to help.

The Egret leans into safety with bigger contact patches, stronger braking, and better water protection. Those big tyres grip confidently in wet conditions where smaller wheels start to feel nervous. The front light is genuinely useful for seeing, not just being seen. A proper rear brake light and turn signals (depending on trim) add to the feeling that you're a legitimate road user, not an afterthought. The higher water-protection rating also means fewer nerves when you're caught in a downpour.

Stability at speed clearly favours the Egret: the long wheelbase and large wheels give you a calmer platform if you have to brake or swerve unexpectedly. The Sirius is fine within its limits, but you always know you're on a lighter, smaller scooter.

Community Feedback

STREETBOOSTER Sirius EGRET X SERIES
What riders love
  • Removable battery and easy charging
  • Solid, rattle-free build for the price
  • Good customer service and parts support
  • Stable feel for a compact commuter
  • Legal out of the box in strict markets
What riders love
  • Big-wheel comfort on bad roads
  • Strong hill-climbing torque (Prime/Ultra)
  • High perceived build quality
  • Confident braking and lighting
  • All-weather capability and good support
What riders complain about
  • Heavier than it looks for carrying
  • No suspension on very rough surfaces
  • Price compared with budget commuters
  • Strict speed limit feels conservative
  • Display visibility in bright sun
What riders complain about
  • Very heavy and bulky when folded
  • High purchase price for the specs
  • Mechanical (not hydraulic) brakes at this level
  • Still capped to legal speeds
  • Occasional app/Bluetooth quirks

Price & Value

Let's be blunt: neither of these is a bargain-bin special, and neither feels like one.

The Sirius sits in the lower part of the "premium commuter" bracket. For what you pay, you get a well-built, feature-complete scooter with a removable battery, decent lighting, turn signals and strong after-sales support. There are cheaper scooters with similar paper specs, but they often cut corners on parts quality, support, or long-term spares. The Sirius gives you a "this should last me a good few years" vibe without breaking into truly painful price territory.

The Egret X is clearly more expensive. If you purely compare watts and claimed range per euro, it can look slightly underwhelming next to some aggressive-value competitors. But the value argument here is more about long-term comfort, durability and the fact that it makes bad roads tolerable day after day. If you're actually going to rack up real kilometres and your back and wrists are worth something, the higher sticker price starts to make more sense.

Objectively, the Egret gives you more scooter but at a distinctly steeper cost. The Sirius offers a more approachable entry into the "serious commuter" world, without the sticker shock of the X Ultra in particular. Whether Egret's extra comfort and range are worth the extra outlay depends strongly on how far and how often you ride.

Service & Parts Availability

Both brands are German and take the non-glamorous side of ownership - spares, service, warranty - more seriously than most.

STREETBOOSTER makes a big deal of long-term parts availability, and in practice they do a solid job. Riders report quick responses, reasonably priced components, and helpful troubleshooting. For a commuter, that matters more than one flashy feature on the handlebar.

Egret (Walberg Urban Electrics) has been in the game for a long time and has a similarly strong reputation for honouring warranties and supplying parts. You're unlikely to end up with an unrepairable doorstop after two years. Their dealer and service network is generally broader, which helps if you prefer handing things to a shop rather than wrenching yourself.

Verdict here: both are good; Egret probably has the more mature network, Sirius leans more on direct, brand-level support. Neither is a horror story - which is rarer than it should be in this industry.

Pros & Cons Summary

STREETBOOSTER Sirius EGRET X SERIES
Pros
  • Removable battery, easy indoor charging
  • Clean, office-friendly design
  • Solid, rattle-free build for its class
  • Legal, compliant setup out of the box
  • Reasonable weight for a "serious" commuter
  • Low-maintenance drum plus regen braking
Pros
  • Superb comfort on rough roads
  • Strong torque, especially in hills
  • Long real-world range options
  • Confident dual-disc braking and lighting
  • Premium build and all-weather robustness
  • Good brand support and ecosystem
Cons
  • No suspension for truly rough surfaces
  • Still fairly heavy to carry upstairs
  • Top speed feels conservative even for legal use
  • Display could be brighter in harsh sun
  • Less comfortable on long, bumpy rides
Cons
  • Very heavy and bulky when folded
  • High purchase price
  • Mechanical, not hydraulic brakes at this level
  • Fixed battery - no quick swapping
  • Overkill if you ride only short, smooth trips

Parameters Comparison

Parameter STREETBOOSTER Sirius EGRET X SERIES (Prime/Ultra typical)
Motor power (rated) 500 W rear hub 500 W rear hub
Motor power (peak) 960 W 1.350 W (Prime/Ultra)
Top speed (legal) 20-22 km/h (market-limited) 20-25 km/h (market-limited)
Battery capacity 338 Wh, removable 649-865 Wh, fixed (Prime/Ultra)
Claimed range 40 km 65-90 km (Prime/Ultra)
Real-world range (≈80 kg rider) ≈33 km ≈50-70 km (Prime/Ultra)
Weight 20,3 kg ≈24 kg (Prime/Ultra mid-point)
Brakes Front drum + rear electric (ABS/regen) Dual mechanical disc, 160 mm
Suspension None (tyres only) Front suspension fork
Tyres 10'' tubeless pneumatic 12,5'' pneumatic
Max load 120 kg 120-130 kg
Water protection IP54 IPX5 (scooter), IPX7 (battery)
Approximate price ≈899 € ≈1.297 € (series average)

Final Verdict - Which Should You Choose?

If I strip away the spec sheets and think about how these two feel after a few hundred kilometres, the Egret X Series comes across as the more capable, future-proof tool - provided you can live with its size and price. The big wheels, front suspension and long range simply make real-world commuting less fatiguing, especially on the sort of "creative" road repairs most European cities specialise in. It feels more like a small, serious vehicle than a beefed-up toy.

The STREETBOOSTER Sirius, meanwhile, is the more compact, practical choice for shorter urban routes and apartment dwellers. The removable battery is genuinely useful, the ride is absolutely fine on decent infrastructure, and you get a sensibly specced, well-supported scooter without having to sell a kidney. Where it falls short is precisely where the Egret shines: bad surfaces, long days in the saddle, and higher rider weights on hilly terrain.

If your commute is moderate in length, your roads are decent, and you regularly need to lug the scooter or its battery around buildings, the Sirius remains a rational, if slightly conservative, buy. If your roads are rough, your trips are long, or you just want a scooter that feels unbothered by whatever your city throws at it, the Egret X Series is the one you'll be happier with in the long run.

Numbers Freaks Corner

Metric STREETBOOSTER Sirius EGRET X SERIES
Price per Wh (€/Wh) ❌ 2,66 €/Wh ✅ 1,50 €/Wh
Price per km/h of top speed (€/km/h) ✅ 40,86 €/km/h ❌ 51,88 €/km/h
Weight per Wh (g/Wh) ❌ 60,06 g/Wh ✅ 27,75 g/Wh
Weight per km/h (kg/km/h) ✅ 0,92 kg/km/h ❌ 0,96 kg/km/h
Price per km of real-world range (€/km) ❌ 27,24 €/km ✅ 21,62 €/km
Weight per km of real-world range (kg/km) ❌ 0,61 kg/km ✅ 0,40 kg/km
Wh per km efficiency (Wh/km) ✅ 10,24 Wh/km ❌ 14,42 Wh/km
Power to max speed ratio (W/km/h) ❌ 43,64 W/km/h ✅ 54,00 W/km/h
Weight to power ratio (kg/W) ❌ 0,0211 kg/W ✅ 0,0178 kg/W
Average charging speed (W) ❌ 67,60 W ✅ 96,11 W

These metrics look purely at how efficiently each scooter converts money, weight, power and energy into speed and distance. Lower "per Wh" or "per km" numbers mean you're getting more range or capacity for your euros or kilograms, while higher power-to-speed and charging-speed numbers indicate stronger performance and faster refuelling. Remember, though, that pure maths ignores comfort, handling and how much you enjoy actually riding the thing.

Author's Category Battle

Category STREETBOOSTER Sirius EGRET X SERIES
Weight ✅ Slightly lighter to haul ❌ Noticeably heavier overall
Range ❌ Fine, but limited ✅ Easily multiple days' riding
Max Speed ✅ Similar, a bit peppier ❌ Legal but feels heavier
Power ❌ Adequate punch only ✅ Stronger, especially on hills
Battery Size ❌ Small but swappable ✅ Big packs, longer legs
Suspension ❌ Tyres doing all work ✅ Front fork smooths hits
Design ✅ Clean, minimalist commuter look ❌ Industrial, a bit bulky
Safety ❌ Good, but basic chassis ✅ More stable, better grip
Practicality ✅ Easier indoors, swappable pack ❌ Bulky, harder to store
Comfort ❌ Acceptable on good roads ✅ Clearly superior on bad
Features ❌ Enough, but nothing fancy ✅ More complete package
Serviceability ✅ Simple, easy to work on ❌ More complex, heavier
Customer Support ✅ Strong, responsive brand ✅ Also strong, established
Fun Factor ❌ Sensible rather than exciting ✅ Torque and comfort grin
Build Quality ❌ Good, but mid-premium ✅ Feels more overbuilt
Component Quality ❌ Decent, nothing exotic ✅ Higher-spec key parts
Brand Name ❌ Respected, smaller presence ✅ Better-known, stronger image
Community ❌ Smaller but positive ✅ Larger, more active
Lights (visibility) ✅ Good headlight, indicators ✅ Strong lights, indicators
Lights (illumination) ❌ Adequate, but modest ✅ Better night-time beam
Acceleration ❌ Zippy but limited ✅ Stronger shove overall
Arrive with smile factor ❌ Satisfactory, not thrilling ✅ Comfort plus torque grin
Arrive relaxed factor ❌ Rough roads get tiring ✅ Big wheels keep you fresh
Charging speed ✅ Quick for its small pack ❌ Long on biggest battery
Reliability ✅ Simple, proven commuter ✅ Robust, designed for abuse
Folded practicality ✅ Compact enough for trains ❌ Bulky, awkward on transport
Ease of transport ✅ Manageable one-person carry ❌ Heavy, unpleasant to lift
Handling ✅ Nimble in tight spaces ❌ Stable, less flickable
Braking performance ❌ Adequate urban stopping ✅ Stronger, more reassuring
Riding position ❌ Fine, slightly compact ✅ Roomy, commanding stance
Handlebar quality ❌ Functional, nothing special ✅ Wider, more ergonomic
Throttle response ✅ Smooth, predictable ✅ Smooth, stronger pull
Dashboard / Display ❌ Can wash out in sun ✅ Brighter, clearer readout
Security (locking) ❌ Basic plus app lock ✅ Integrated lock-friendly frame
Weather protection ❌ Splash-proof, nothing extreme ✅ Better rain and puddle confidence
Resale value ❌ Solid but more niche ✅ Stronger demand used
Tuning potential ✅ Some aftermarket controller mods ❌ More locked, compliance focus
Ease of maintenance ✅ Simpler hardware layout ❌ Heavier, more complex
Value for Money ✅ Fair entry into premium ❌ Costly, comfort-focused spend

Overall Winner Declaration

Winner

In the Numbers Freaks Corner, the STREETBOOSTER Sirius scores 3 points against the EGRET X SERIES's 7. In the Author's Category Battle, the STREETBOOSTER Sirius gets 16 ✅ versus 27 ✅ for EGRET X SERIES (with a few ties sprinkled in).

Totals: STREETBOOSTER Sirius scores 19, EGRET X SERIES scores 34.

Based on the scoring, the EGRET X SERIES is our overall winner. In everyday use, the Egret X Series simply feels like the more complete partner: calmer on rough streets, less needy about charging, and more reassuring when the weather or terrain turns nasty. The STREETBOOSTER Sirius does a lot right for a fairer price, but it never quite escapes the feeling of being a competent commuter rather than something you actively look forward to riding. If you value long-term comfort and that "unbothered" feeling over raw efficiency and upfront savings, the Egret is the one that will keep you happiest in the long run. If your budget and carrying needs are stricter, the Sirius remains a sensible, workmanlike choice - just don't expect it to turn every commute into a small event.

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.