Jetson Relay vs Razor Black Label E90 - Which Kid's E-Scooter Actually Deserves Your Money?

Fast Answer for Busy Riders ⚡ (TL;DR)

The Razor Black Label E90 is the better overall package for most kids: it feels tougher, runs longer on a charge, and has a proven track record of surviving years of abuse with minimal fuss. The Jetson Relay counters with a lighter chassis, a modern lithium battery, a headlight, and a hand e-brake, but its short range and weak hill performance make it feel more like an electric toy than a small vehicle.

Pick the Razor if you want maximum "ride time per euro" and something that can be handed down to siblings. Choose the Jetson if your priority is ultra-low weight, adjustable bars and a more modern-looking, foldable scooter that's easy to stash and carry. Both have compromises; the question is whether you care more about rugged runtime (Razor) or portability and kid-friendly ergonomics (Jetson).

If you want the full story - including where each one quietly trips over its own marketing - keep reading.

There's a whole ecosystem of kids' electric scooters that all promise the same thing: "perfect first e-scooter, super safe, loads of fun". The Jetson Relay and Razor Black Label E90 sit right in that sweet spot between toy aisle junk and serious commuter gear, hunting for the same parents' wallets and the same 8-12 year olds' attention.

I've put real kilometres on both of these: cul-de-sacs, cracked suburban pavements, gentle park paths, and the occasional "let's see what happens on this tiny hill" moment. On paper they aim for the same brief; in practice, they deliver very different experiences - and very different annoyances.

If you're torn between the sleek, foldable Jetson and the "built like a crowbar" Razor, this comparison will walk you through exactly what you gain - and what you give up - with each choice.

Who Are These For, and Why Compare Them?

Both scooters are squarely aimed at kids roughly in the 8-12 age bracket, both top out at roughly jogging speed, and both are happiest under riders lighter than a school backpack full of textbooks. They're not commuter vehicles; they're neighbourhood fun machines.

The Jetson Relay plays the "mini adult scooter" card: lithium battery, aluminium frame, foldable stem, LED headlight, display, and a very light overall package. It's the one that looks like mum and dad's scooter shrunk in the wash.

The Razor Black Label E90 goes the other way: steel frame, non-folding, solid hub motor at the rear, and old-school lead-acid battery. Less gadget, more blunt instrument. Kids see the "Black Label" styling and think "cool"; parents see "Razor" and think "this might actually survive my child."

They're direct competitors because a lot of parents will be deciding between "modern lithium & foldable" versus "old battery tech but famously indestructible". Same use case, very different approaches.

Design & Build Quality

In the hand, the contrast is immediate. The Jetson Relay feels like a scaled-down adult e-scooter: aluminium chassis, clean-ish cable routing, integrated display in the throttle pod and a folding stem. It's impressively light, which is both a blessing and a quiet reminder that there isn't a lot of metal there. The finishing is decent for its price, but you can see and feel the budget: external cabling that can snag, plasticky controls, and a very toy-like deck size.

The Razor Black Label E90, by comparison, feels agricultural - in a mostly good way. The steel frame has that "you'll dent the pavement before you damage the scooter" vibe. The non-folding stem is welded in place, eliminating the wobbly hinge that plagues cheap folders. The components are simple and chunky: urethane front wheel, big slab of steel deck, foam grips, and a fender brake.

Design philosophy-wise: Jetson aims for sophistication and portability, Razor aims for blunt durability. If you pick them up blindfolded, you'd guess the Razor costs more simply because it feels more substantial. The Jetson looks more advanced, but it's also clearly built to a tight cost ceiling - and you feel that in the finer details.

Ride Comfort & Handling

Both scooters share one major "comfort feature": none. No suspension, fully solid tyres, small wheels. So the question isn't "which is plush?" but "which hurts less, and where?"

On the Jetson Relay, the tiny solid wheels and light aluminium frame transmit every crack, pebble and pavement seam straight into the rider. On fresh tarmac, it's smooth and even a bit refined; on old sidewalks after a few kilometres, little hands start to buzz and knees get vocal. The adjustable handlebar helps: you can tune the bar height to the child so at least they're not hunched or reaching, which does reduce fatigue.

The Razor E90 is also firm, but it's a different texture of firm. The steel frame actually soaks up some of the high-frequency chatter that aluminium tends to amplify. The larger urethane front wheel rolls a bit better over imperfections than the Jetson's smaller solids, so at the same speed, the Razor's shake feels slightly more "dull thump" than "electric toothbrush". Still, on rough concrete, both will rattle a kid's fillings if you let them run too long.

Handling-wise, the Jetson's lightness makes it flickable; kids can hop it off small curbs and weave around obstacles without much effort. The folding joint does add a hint of flex if you push it, but for the target weight range it's acceptable. The Razor's fixed stem and rear-hub motor give it a more planted, go-straight feel. It's less nimble, more stable - very confidence-inspiring for a newer rider, if slightly less playful at low speed.

Performance

Let's set expectations: neither of these will rip your arm off. They are firmly in the "safe for kids, mildly boring for adults" performance class. Top speeds are essentially the same on flat ground.

The Jetson Relay uses a small front hub motor and a low-voltage lithium pack. For a light child on flat pavement, it gathers speed smoothly and quietly, feeling pleasantly zippy for its category. Once you hit anything more than a gentle incline, though, the little motor runs out of breath fast. You hit that familiar "I'm helping the scooter by kicking so it doesn't die" moment on driveways and neighbourhood slopes, especially as rider weight approaches the upper limit.

The Razor E90's rear hub motor is rated slightly lower on paper, but the torque delivery feels more muscular in the real world. With no chain losses and that rear-drive layout, it pulls with a bit more conviction off the kick-to-start. On flat ground, it cruises at its top speed with less drama and maintains that speed more consistently as the battery discharges. Hills still humble it - no miracles here - but it holds on a touch longer before giving up and asking for a kick.

Throttle feel is basic on both. The Jetson's thumb throttle and three speed modes are effectively stepped on/off presets; kids quickly graduate to the top mode and leave it there. The Razor's thumb button is pure on/off: kick, press, go. Subtle speed modulation is wishful thinking. For small kids, that simplicity is actually fine - they're focusing on steering and balance, not carving apexes - but it does mean riding slowly alongside a walking adult is awkward on either scooter.

Battery & Range

This is where the philosophies really clash - and where you feel the biggest difference in day-to-day use.

The Jetson Relay runs a tiny lithium-ion pack. The upside: modern chemistry, low weight, no lead brick under the deck. The downside: there simply isn't much energy there. In friendly conditions with a light rider, you can squeeze a short neighbourhood loop and a bit of park time out of it. Add a heavier child, colder weather, or a few stops and starts, and your fun window shrinks to something that can be over before parents have finished their coffee. Kids absolutely notice when the scooter starts sagging halfway through the ride.

The Razor E90 uses a single lead-acid block - ancient tech by e-scooter standards, but robust and predictable. Despite the chemistry, real-world ride time is significantly better. You're looking at roughly "after-school session" length: enough charge to play around the neighbourhood or park until everyone's bored rather than until the battery gives up. That kick-to-start setup helps, because you're not wasting energy on hard launches from zero.

The price you pay is charging. The Jetson's small lithium pack takes a few hours from empty, which is already slow considering how little energy you're filling. The Razor, on the other hand, wants basically an overnight stay on the charger. Forget to plug it in after a ride, and tomorrow's disappointment is guaranteed.

There's another catch with the Jetson: small lithium packs plus seasonal, kid-toy usage is a classic recipe for "left all winter, now it's dead and won't charge". Deep-discharged cells simply don't bounce back. Lead-acid is also sensitive to neglect, but in this class, the Razor batteries seem to survive "real family life" better and are cheap and easy to replace when they eventually fade.

Portability & Practicality

If you care about carrying and storing the scooter, the Jetson Relay wins by a country mile. It weighs noticeably less than the Razor, and with the folding stem it becomes a slim, compact bundle. A 10-year-old can pick it up and lug it upstairs, stash it under a desk, or load it into a car boot without turning it into a family weightlifting event. For families with limited storage or lots of travel, that matters.

The Razor E90 doesn't fold. At all. You get a fixed L-shaped object of steel that's short enough to fit in most car boots or behind a front seat, but it's bulkier and awkward in tight spaces. At its weight, most kids can still drag or carry it for short distances, but when the battery dies at the far end of the park, some parents will end up doing the "Razor portage" back to the car.

In day-to-day practicality, both are "charge, ride, park in the hallway" simple. The Jetson's folding joint is one more thing that can develop play or rattles over time; the Razor avoids that entirely by not folding in the first place. For families who never plan to take it on public transport or into small flats, that simplicity is a plus. For everyone else, that fold on the Jetson is the difference between "out of the way" and "trip hazard".

Safety

Both scooters get the key idea right: kick-to-start. No child is going to accidentally bump the throttle and send the scooter shooting off from a standstill; they have to be moving already before the motor will help. That single feature quietly prevents a lot of fence-and-shin incidents.

The Jetson Relay leans harder into the "little vehicle" side of safety equipment. You get an electronic front brake on the bar, plus the classic rear fender foot brake as backup, and an LED headlight that actually makes some sense for those early winter evenings. The triple speed-mode system also lets parents cap the fun initially, then unlock more speed as confidence grows.

The Razor E90 keeps things very simple: rear fender brake, which cuts the motor when used. No front brake, no electronics in the lever. It's a system kids instantly understand if they've ever ridden a push scooter, but it does rely on them using proper body position to stop quickly. Stopping power is fine at the modest speed it reaches, but there's less redundancy than on the Jetson.

Tyres and wheel size don't do either of them many favours. Small, solid wheels mean any crack or pebble is to be treated with respect. On dry, clean pavement both feel predictable; on wet surfaces, both can get skittish quickly, and neither has meaningful water protection for the electronics. These are dry-day, pavement-only machines, regardless of brand marketing.

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Price & Value

This is where things get uncomfortable for the Jetson Relay. It costs roughly double what the Razor Black Label E90 typically goes for. For that premium, you're getting a lithium battery, a lighter aluminium frame, folding mechanism, headlight, adjustable bar, and a generally more "grown-up" aesthetic. All nice things. But you are not getting more speed or more power, and you are definitely not getting more ride time per charge.

The Razor asks for about the price of a mid-range video game and returns hours upon hours of use over the years, with cheap replacement batteries readily available when the original eventually fades. In pure "fun delivered per euro spent", it's hard not to see it as the better deal, outdated battery chemistry and all.

The Jetson, meanwhile, sits in an awkward middle. It's not expensive by adult scooter standards, but for a kids' toy with limited range and a modest lifespan before kids outgrow it, the value calculus is harsher. If you specifically need its light weight and folding, the price can be justified. If you just want something that kids can ride a lot, for several years, without drama, the Razor makes the stronger value case.

Service & Parts Availability

Razor has been around the block more times than most parents. In practice, that means an established parts catalogue: replacement batteries, chargers, grips, even small hardware are easy to source in Europe through retailers and online. The scooters are simple enough that any moderately handy adult can swap a battery or fix a loose part without a YouTube PhD.

Jetson has decent presence in big-box and online retail, but its support footprint in Europe can feel thinner and more retailer-driven. Spares like proprietary chargers and specific batteries are available, but you're more dependent on stock cycles and regional distributors. Deep-discharged lithium packs are often effectively uneconomical to replace compared to the value of the whole scooter.

In short: both are repairable in theory, but the Razor ecosystem and simple construction make keeping it alive for a second or third child far more realistic.

Pros & Cons Summary

Parameters Comparison

Final Verdict - Which Should You Choose?

If I strip it down to actual riding and ownership, the Razor Black Label E90 comes out as the more convincing choice for most families. It's not glamorous, its battery tech belongs in a museum, and it rattles on old pavements - but it simply gives kids more time riding and less time complaining that the scooter is dead. It survives crashes, neglect and sibling hand-me-downs with a shrug, and the price is low enough that you don't have to pretend it's a long-term "investment vehicle".

The Jetson Relay is easier to live with if you're constantly lifting and storing it, and kids (and grandparents) love that it looks like a "real" e-scooter. For flat, short rides and frequent car trips, it's a neat little package. But the short range, hill weakness and so-so durability make it feel more like an expensive seasonal toy than a go-to neighbourhood machine.

So: if you want your child to ride often and for longer stretches, and you don't mind the non-folding frame and old-school battery, the Razor is the smarter buy. If portability, low weight and looks matter more than marathon play sessions, the Jetson can still make sense - as long as you go in with realistic expectations about how far and how long it will actually go.

Numbers Freaks Corner

These metrics dissect how efficiently each scooter turns money, weight, energy, and time into real-world riding. Price per Wh and per km/h show how much performance you're buying for each euro. Weight-based figures reveal how much bulk you carry around for the battery and speed you get. Range-related values expose which scooter uses its stored energy more effectively, while the power and charging metrics highlight which one has more muscle per unit of speed and which recovers faster between rides.

Author's Category Battle

Overall Winner Declaration

In the Numbers Freaks Corner, the JETSON Relay scores 4 points against the RAZOR Black Label E90's 6. In the Author's Category Battle, the JETSON Relay gets 16 ✅ versus 20 ✅ for RAZOR Black Label E90.

Totals: JETSON Relay scores 20, RAZOR Black Label E90 scores 26.

Based on the scoring, the RAZOR Black Label E90 is our overall winner. Between these two, the Razor Black Label E90 simply feels like the more complete little machine: it keeps kids rolling longer, shrugs off abuse, and doesn't make you wince every time you think about what you paid for it. The Jetson Relay has charm - it's light, clever in places, and looks the part - but it runs out of steam too quickly to really anchor itself as the family favourite. If I were buying one to live in my own hallway and survive my own test kids, I'd take the Razor's extra stamina and toughness over the Jetson's lighter, flashier approach. It's the scooter that's more likely to still be around - and still being fought over - a few summers from now.

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.