Fast Answer for Busy Riders ⚡ (TL;DR)
If you want the more complete, future-proof commuter, the Unagi Model One Voyager is the better all-rounder: stronger motors, better hill performance, smarter electronics, and a genuinely premium feel - all while staying extremely portable. The Razor E Prime III fights back with a significantly lower price and slightly lighter weight, making it attractive if your budget is tight and your rides are short, flat, and gentle.
Choose the Unagi if you care about power, polish and long-term daily usability. Choose the Razor if you just need a light, affordable hop-on scooter for modest distances and forgiving terrain, and you're willing to accept compromises in torque, range, and features.
If you want to know which one still feels like a good idea after a month of real commuting rather than on paper, read on - that's where things get interesting.
Electric scooters have grown up. What used to be a toy in the boot of your parents' car is now a serious alternative to short city car trips and overcrowded trams. In that grown-up world, the Unagi Model One Voyager and the Razor E Prime III play in the same league: ultra-portable, slimline commuters that promise to be easy to carry, easy to live with, and easy on your hallway space.
On one side you've got the Unagi - the design-school poster child that looks like it should come in an Apple box and live on your Instagram feed. On the other, a very different sort of nostalgia: Razor, the brand many of us first met as kids, now asking to be taken seriously as a commuter tool with the E Prime III.
Both claim to be the answer to the "last few kilometres" problem. Both say they're light, practical and fast enough. But only one of them really feels like it was built for modern daily commuting rather than as a powered upgrade to a kick scooter. Let's dig in.
Who Are These For, and Why Compare Them?
These two belong to the same broad class: lightweight, compact city commuters sitting well below the burly performance monsters in weight, price and sheer madness. Neither is built for off-road antics or 30 km daily marathons; think office workers, students, and multi-modal commuters hopping between train, tram and scooter.
The Razor E Prime III is the cheaper entry ticket - a minimalist package aimed at people who want something better than a toy, but who flinch at the idea of spending four figures on a scooter. It's very light, easy to carry, and clearly tuned for short, flat city hops.
The Unagi Model One Voyager costs more than double but hits back with dual motors, a much more advanced chassis and electronics, and an overall "premium product" vibe. It's still compact and light enough to sling over your shoulder, but clearly aspires to be your daily driver, not just your nice-weather toy.
They compete because, if you're shopping for a genuinely portable scooter and not ready to drag 20+ kg up stairs, these are the kinds of machines that end up in the same comparison shortlist: similar weight, similar intended use - but very different takes on what "good commuting" means.
Design & Build Quality
Picking these up back-to-back tells you immediately: one brand thought like a consumer-electronics company, the other like a traditional scooter maker.
The Unagi Voyager is all carbon fibre stem, magnesium bar, machined aluminium deck. No loose cables, no ugly brackets, no "bolt-on afterthought" bits. It feels like it was carved, not assembled. Every edge is smooth, the display melts into the handlebar, and the folding button has that reassuring "luxury car door" clunk. It's the sort of scooter that actually looks at home leaning against a glass office wall rather than in a bike shed.
The Razor E Prime III goes for industrial, functional aluminium. The frame feels decent, the gunmetal finish looks grown-up, and the anti-rattle joint does its job - the stem stays reassuringly quiet. It just doesn't give the same impression of refinement. You see screws, functional welds, and a more old-school layout. Solid enough for its price, but clearly built to a cost, not to win design awards.
Ergonomically, Unagi's handlebar shape and integrated display feel more sorted. Everything is exactly where your thumbs expect it to be, and the scooter looks as good close up as it does from across the street. Razor's rubber grips are comfy, and the locking point on the frame is genuinely clever, but the non-folding handlebar and basic LED indicators remind you this is, fundamentally, a thoughtful upgrade to a budget platform.
If you want something that feels like a polished product from every angle, the Unagi walks away with this one. Razor holds its own on basic solidity - but that's about it.
Ride Comfort & Handling
This is where spec sheets lie most, and road surfaces tell the truth.
The Razor E Prime III does one important thing right: it has a pneumatic front tyre. That single decision saves your wrists and shoulders from a lot of micro-vibrations. Paired with its low deck and rear-drive layout, it tracks nicely in a straight line and feels fairly planted at city speeds on half-decent asphalt. Over expansion joints and rougher slabs, that front tyre takes the sting out, even though the solid rear will still happily transmit sharp bumps straight into your heels.
The Unagi Voyager chooses a different religion: solid honeycomb tyres and no suspension at all. On fresh tarmac or smooth cycle paths, it actually feels sublime - precise, agile, almost "skate-like". The stem is rock solid, there's zero wobble, and its low weight makes quick direction changes effortless. But start stacking cobblestones, patched asphalt and tram tracks, and the romance fades quickly. The honeycomb pattern cuts down high-frequency buzz, but it can't magic away the laws of physics: small solid wheels plus big holes equals your knees doing unpaid suspension work.
Handling-wise, the Unagi feels more eager and responsive, especially weaving through tight gaps or around pedestrians. The Razor feels more relaxed, a bit more "traditional scooter", helped by that slightly softer front end. On perfect roads, Unagi is the more fun, connected ride. On mixed or rough surfaces, Razor's front tyre gives it a noticeable comfort edge - even if the rear tries its best to even the score again.
Performance
Line them up at a traffic light and the difference is immediate.
The Unagi Model One Voyager runs dual hub motors, one in each wheel. On paper they're modest, but because the scooter is so light, the shove off the line is surprisingly punchy. Throttle response is essentially instant: twist your thumb and it surges forward with a smooth, quiet eagerness that most single-motor featherweights can't match. On steep city ramps where many small scooters lose the will to live, the Unagi will still pull you up at respectable speed instead of asking you to walk.
The Razor E Prime III, with its single rear motor, is more modest. It's quick enough to feel lively on flat ground, and that slightly higher regulated top-speed ceiling actually makes it feel brisk once you're rolling. But the torque isn't in the same league. On inclines it quickly runs out of enthusiasm; you'll be assisting with your foot sooner than you might like if you live somewhere even mildly hilly. Acceleration is fine for gentle commutes, but it doesn't have that "oh, nice" shove Unagi delivers in its higher power mode.
Braking tells a similar story of philosophy differences. Unagi relies on dual electronic braking with a fender stomp as mechanical backup. Once you've adjusted to the feel, it's smooth and predictable, though some people miss the psychological reassurance of a full mechanical lever. Razor gives you an electronic thumb brake plus classic rear fender. It works, and having two clearly separate systems is comforting, but the modulation feels less refined, especially for new riders getting used to that thumb paddle.
If your routes are flat and you mainly care about cruising at bike-lane pace, Razor will do the job. If you want something that can actually tackle real hills, accelerate decisively out of junctions, and still feel composed doing it, Unagi is on another level.
Battery & Range
This is where the underlying engineering work really shows.
The Razor E Prime III has a relatively modest battery tucked into the deck. On a gentle urban loop, ridden sensibly, it will squeak through a medium-length commute. Push it harder - heavier rider, lots of full-throttle, some headwind - and you start to see the limits quickly. Towards the last chunk of the charge, you'll feel speed and punch fade; it's that classic "I'm not stuck yet, but I'm definitely limping home" sensation.
The Unagi Voyager packs significantly more energy into a similarly slim footprint. Real-world rides with an average adult, mixed speeds, and some hills tend to land in the "proper daily commute plus a bit" territory. You can leave home, do your to-work route, add a lunch detour, and head back without constantly eyeing the battery indicator. It also holds its performance curve better as the battery drains, so the last third of the charge doesn't feel like you've switched to an eco toy mode.
Charging time leans in Unagi's favour too: it refuels notably faster, making lunchtime top-ups genuinely practical. Razor's charger is small and portable, but a full refill takes a good workday's worth of time. For occasional use, that's fine. For daily commuting where you might want a quick hit before heading back out, Unagi's faster turnaround genuinely changes how relaxed you feel.
In short: Razor's battery is "fine, if you stay inside its comfort zone". Unagi's is "actually built for commuting, not just marketing numbers".
Portability & Practicality
Both scooters are wonderfully light by modern standards - that's the main reason they exist. But they don't feel the same in day-to-day life.
The Razor E Prime III wins on raw scale reading: a couple of kilos lighter, and you do feel that when you're carrying it up a long staircase or holding it in one hand while juggling a bag and a coffee. The folding is quick, the frame is slim, and the built-in locking eyelet is an underrated practical touch for quick errands.
The Unagi Voyager counters with a superb folding experience. The one-click mechanism is ridiculously easy, the stem shape fits your hand like it was designed by a luggage company, and the compact deck tucks neatly under desks and between train seats. It's a shade heavier, yes, but still firmly in the "normal person can carry this without inventing new swear words" category. The solid tyres and minimal exposed hardware also make it less grubby to handle after rain or dusty rides.
Day to day, the difference is this: Razor is slightly easier to carry; Unagi is much nicer to live with. It demands less babying, folds and unfolds more elegantly, and feels like something you can bring into a meeting room without apologising.
Safety
Both manufacturers have clearly thought about the basics - they just prioritised different things.
Lighting: Unagi's integrated front and rear LEDs are bright, sharply mounted and impossible to knock out of alignment. The rear brake-light behaviour is well executed. Razor also brings a decent headlight and a brake-activated tail, plus reflective flashes on the sides. On pitch-black roads I'd want an extra helmet light with either, but for typical lit urban riding both are serviceable - Unagi just feels a bit more "finished" in how the system is integrated.
Brakes: Unagi's dual e-brakes with regen and a stomp-fender backup give strong, smooth deceleration once you've dialled in your thumb pressure. Razor's electronic brake is effective but can feel slightly abrupt until you learn its character, and the rear fender is there for panic stops or old-school comfort. Neither gives you the mechanical disc confidence of higher-class commuters, but for their speeds and weights, they're acceptable.
Stability and traction: Here the trade-offs bite. Unagi's small, solid tyres give razor-sharp steering on dry, clean tarmac, but they're less forgiving over wet paint lines and rough surfaces. Razor's air front tyre gives more compliance and bite when things get sketchy, while the rear solid tyre remains the weak link on slick manhole covers. At speed, both frames feel stable; Unagi's stem rigidity is exceptional, while Razor's anti-rattle joint keeps the wobble at bay.
Electronics & protections: Both use kick-to-start to prevent accidental launch. Razor proudly carries UL certification on the electrical side, which is reassuring if you charge indoors. Unagi's safe-start logic and BMS tuning give it a more modern, EV-like safety feel, especially as battery voltage drops.
Overall, I'd say Unagi feels safer to use fast, Razor feels slightly more forgiving to learn on. Neither is unsafe - they just express their compromises differently.
Community Feedback
| UNAGI Model One Voyager | RAZOR E Prime III |
|---|---|
What riders love
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What riders love
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What riders complain about
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What riders complain about
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Price & Value
On sticker price alone, the Razor E Prime III looks very tempting: a capable, recognisable brand scooter for well under the four-digit mark. For occasional commuting on forgiving terrain it offers decent speed and excellent portability for the money. You are, however, paying for exactly what you get: a small motor, a small battery, and a very lean feature set. Stretch it beyond that envelope and its value proposition fades quickly.
The Unagi Voyager asks for a serious chunk more cash. Judged purely as "euros per watt-hour" it looks expensive - and it is. But you're not just buying battery capacity. You're buying dual motors, substantially better performance headroom, much faster charging, premium materials, and the confidence that it will actually cope with daily commuting rather than just Sunday coffee runs. If you genuinely use it most days, the extra spend starts to feel less like a luxury tax and more like paying to avoid frustration.
If budget is absolutely king and your demands are modest, Razor makes sense. If you're looking at years of regular use, the cost difference starts to look more like the gap between an entry-level gadget and a proper tool.
Service & Parts Availability
Razor has a clear advantage in global brand presence and basic parts availability. Need a charger or a replacement wheel in a few years? The odds of finding Razor-branded spares, or at least compatible third-party options, are fairly good, especially via big retail channels.
Unagi operates more like a modern tech brand: decent direct support, app integration, and, in some regions, subscription schemes that bundle maintenance. For owners in supported markets, turnaround on issues tends to be reasonable and communication modern and digital-first. However, you are more dependent on Unagi themselves for model-specific components - you won't find their carbon stems hanging in every local bike shop.
For European riders, both are serviceable choices; neither is an obscure no-name where parts vanish in a year. But Razor plays the long-tail retail game better, while Unagi leans on a tighter, more premium support ecosystem.
Pros & Cons Summary
| UNAGI Model One Voyager | RAZOR E Prime III |
|---|---|
Pros
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Pros
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Cons
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Cons
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Parameters Comparison
| Parameter | UNAGI Model One Voyager | RAZOR E Prime III |
|---|---|---|
| Motor power (rated) | 2 x 250 W (500 W total) | 250 W (rear) |
| Top speed | Up to 32 km/h (unlockable) | Approx. 29 km/h |
| Battery capacity | 360 Wh (36 V, 10 Ah) | 185 Wh (36 V, 5,2 Ah) |
| Claimed range | 20 - 40 km | Up to 24 km |
| Realistic range (avg rider) | Approx. 20 - 25 km | Approx. 15 - 18 km |
| Weight | 13,4 kg | 11 kg |
| Brakes | Dual electronic + rear fender | Electronic thumb + rear fender |
| Suspension | None | None (relies on tyres) |
| Tyres | 7,5" solid honeycomb (front & rear) | 8" pneumatic front, 8" solid rear |
| Max load | 100 kg | 100 kg |
| IP rating | IPX4 | Not specified / standard consumer |
| Price (approx.) | 1.095 € | 461 € |
Final Verdict - Which Should You Choose?
If you strip away brand nostalgia, marketing gloss and spec-sheet bingo, the story is fairly clear: the Unagi Model One Voyager is simply closer to a modern, well-thought-out commuter vehicle, while the Razor E Prime III feels more like a competent powered evolution of a classic kick scooter.
Pick the Unagi Voyager if your rides are genuinely part of your daily life - commuting to work, regular cross-town hops, mixed terrain including hills and some wind, maybe a bit of evening fun on the way home. You'll appreciate the stronger performance, more robust battery, faster charging, and overall polish every single day. You do sacrifice comfort on bad surfaces and pay a premium for the design and engineering, but you gain a scooter that feels purpose-built for grown-up commuting.
Pick the Razor E Prime III if you're on a stricter budget, your routes are short and mostly flat, and you care more about absolute lightness than about torque or range headroom. It's a fine tool for short hops and campus-style use, and that front air tyre does make it more forgiving over typical city texture. Just go in with realistic expectations: it's not a hill-climber, not a long-range machine, and not a feature monster.
In the end, the Unagi is the one that feels more "future commuter" than "grown-up toy". The Razor makes sense if you need cheap, light and simple - but it's the Unagi that is more likely to keep you happy once the novelty wears off and the daily grind begins.
Numbers Freaks Corner
| Metric | UNAGI Model One Voyager | RAZOR E Prime III |
|---|---|---|
| Price per Wh (€/Wh) | ❌ 3,04 €/Wh | ✅ 2,49 €/Wh |
| Price per km/h of top speed (€/km/h) | ❌ 34,22 €/km/h | ✅ 15,90 €/km/h |
| Weight per Wh (g/Wh) | ✅ 37,22 g/Wh | ❌ 59,46 g/Wh |
| Weight per km/h (kg/km/h) | ❌ 0,42 kg/km/h | ✅ 0,38 kg/km/h |
| Price per km of real-world range (€/km) | ❌ 48,67 €/km | ✅ 27,94 €/km |
| Weight per km of real-world range (kg/km) | ✅ 0,60 kg/km | ❌ 0,67 kg/km |
| Wh per km efficiency (Wh/km) | ❌ 16,00 Wh/km | ✅ 11,21 Wh/km |
| Power to max speed ratio (W/km/h) | ✅ 15,63 W/km/h | ❌ 8,62 W/km/h |
| Weight to power ratio (kg/W) | ✅ 0,0268 kg/W | ❌ 0,0440 kg/W |
| Average charging speed (W) | ✅ 90 W | ❌ 37,00 W |
These metrics look purely at maths. Price per Wh and per km/h show how much you pay for raw battery capacity and speed. Weight-related metrics reveal how effectively each scooter turns mass into usable performance or range. Wh per km highlights energy efficiency. Power-to-speed and weight-to-power ratios show how "over-motored" (in a good way) a scooter is for its top speed. Finally, average charging speed tells you how quickly each machine drinks from the wall socket, which matters a surprising amount if you actually commute daily.
Author's Category Battle
| Category | UNAGI Model One Voyager | RAZOR E Prime III |
|---|---|---|
| Weight | ❌ Heavier to carry | ✅ Noticeably lighter |
| Range | ✅ More real-world distance | ❌ Runs out sooner |
| Max Speed | ✅ Higher unlockable ceiling | ❌ Slightly slower overall |
| Power | ✅ Dual motors, strong torque | ❌ Modest single motor |
| Battery Size | ✅ Substantially larger pack | ❌ Much smaller capacity |
| Suspension | ❌ No suspension, solid tyres | ✅ Air front helps a lot |
| Design | ✅ Sleek, premium, cableless | ❌ Functional, less refined |
| Safety | ✅ Stronger performance headroom | ❌ Limited torque, basic feel |
| Practicality | ✅ Better all-round commuter | ❌ More limited use cases |
| Comfort | ❌ Harsh on bad surfaces | ✅ Softer front, calmer ride |
| Features | ✅ Display, app, unlock modes | ❌ Barebones, no speed readout |
| Serviceability | ❌ More proprietary parts | ✅ Easier generic servicing |
| Customer Support | ✅ Modern, responsive overall | ✅ Established global network |
| Fun Factor | ✅ Zippy, playful dual motors | ❌ Fine, but not exciting |
| Build Quality | ✅ Premium materials, tight feel | ❌ Good, but more basic |
| Component Quality | ✅ Higher-spec electronics | ❌ More budget-level parts |
| Brand Name | ❌ Younger, lifestyle focused | ✅ Legacy, widely recognised |
| Community | ✅ Active, engaged, techy | ✅ Large, long-standing base |
| Lights (visibility) | ✅ Clean, well integrated | ❌ Slightly more basic |
| Lights (illumination) | ✅ Strong enough for city | ✅ Comparable city visibility |
| Acceleration | ✅ Punchy, instant response | ❌ Adequate, not thrilling |
| Arrive with smile factor | ✅ Feels special each ride | ❌ More "tool" than "toy" |
| Arrive relaxed factor | ❌ Vibes on rough streets | ✅ Softer, calmer cruising |
| Charging speed | ✅ Refills noticeably faster | ❌ Slower to top up |
| Reliability | ✅ Solid tyres, fewer flats | ✅ Simple, proven architecture |
| Folded practicality | ✅ Superb one-click fold | ❌ Bars don't fold down |
| Ease of transport | ❌ Slightly heavier to lug | ✅ Lightest, easiest carry |
| Handling | ✅ Sharp, agile steering | ❌ Less precise, more basic |
| Braking performance | ✅ Strong dual e-brake feel | ❌ Abrupt, less refined |
| Riding position | ❌ Smaller deck, tighter fit | ✅ Longer, roomier deck |
| Handlebar quality | ✅ Magnesium, integrated display | ❌ Standard alloy bar |
| Throttle response | ✅ Immediate, well tuned | ❌ Less refined feel |
| Dashboard / Display | ✅ Bright, informative screen | ❌ Simple LEDs only |
| Security (locking) | ❌ No dedicated lock point | ✅ Built-in lock eyelet |
| Weather protection | ✅ Defined IPX4 rating | ❌ Less clearly specified |
| Resale value | ✅ Premium, recognisable model | ❌ Budget segment depreciation |
| Tuning potential | ❌ Closed, app-limited tweaks | ❌ Basic controller, few mods |
| Ease of maintenance | ✅ No flats, fewer adjustments | ✅ Simple mechanics overall |
| Value for Money | ✅ Higher value if used daily | ❌ Cheap, but clearly compromised |
Overall Winner Declaration
In the Numbers Freaks Corner, the UNAGI Model One Voyager scores 5 points against the RAZOR E Prime III's 5. In the Author's Category Battle, the UNAGI Model One Voyager gets 29 ✅ versus 14 ✅ for RAZOR E Prime III (with a few ties sprinkled in).
Totals: UNAGI Model One Voyager scores 34, RAZOR E Prime III scores 19.
Based on the scoring, the UNAGI Model One Voyager is our overall winner. Between these two, the Unagi Model One Voyager is the scooter I'd actually want to live with: it feels more grown-up, more capable, and more satisfying every time you press the throttle. The Razor E Prime III does a decent job of being light and affordable, but too often feels like it's just about keeping up rather than truly leading the commute. If you can stretch your budget and your expectations beyond "just enough", the Unagi rewards you with a ride that feels intentional rather than improvised - and that's the difference between something you tolerate and something you're genuinely happy to grab every morning.
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.

