Fast Answer for Busy Riders ⚡ (TL;DR)
The Cecotec Bongo D20E Connected is the stronger overall choice: it rides safer, feels more grown-up, and offers a noticeably smoother, more confidence-inspiring commute thanks to its pneumatic tyres, better brakes and smart features.
The DENVER SEL-80135O only really makes sense if you're laser-focused on ultra-low price and the lightest possible scooter to drag up stairs, and your trips are genuinely very short and very flat.
For most urban riders who want something they won't outgrow in a month, the Cecotec is the more sensible daily partner.
If you want to know where each one shines - and where the compromises start to bite - keep reading; the devil is in the details here.
Urban lightweight scooters are a weird little niche: they promise freedom without sweat, but often ship with expectations far larger than their batteries. I've spent many kilometres hopping between the bright-orange DENVER SEL-80135O and the understated Cecotec Bongo D20E Connected, treating them as they're meant to be used: train-to-office hops, campus dashes, and late-for-coffee sprints across town.
On paper they look similar: both capped at regulation-friendly speeds, both marketed as "last-mile" tools, both light enough that you don't need a gym membership to carry them. In practice, one behaves like a serious little commuter, the other more like an inexpensive gadget that happens to have wheels.
If you're wondering which one deserves your hallway space - and which one is likely to be collecting dust (or warranty emails) first - let's dig in.
Who Are These For, and Why Compare Them?
Both scooters live in the budget, lightweight commuter segment: think students, office workers, and anyone whose ride is measured in a handful of kilometres rather than cross-country odysseys.
The DENVER SEL-80135O is very much an entry ticket to e-scooters: featherlight, very affordable, and clearly aimed at teens, students and "scooter curious" adults who don't want to invest much. It's best described as a micro-mobility shortcut for short, flat connections.
The Cecotec Bongo D20E Connected sits a notch higher in ambition. It still keeps weight low, but adds real brakes, app connectivity and better road manners. It's for riders who actually plan to use their scooter daily rather than occasionally pulling it out "for fun".
They compete because, in many European shops and websites, you'll see them side by side: similar legal top speed, similar claimed ranges, similar target riders... but very different ideas of what "commuter-ready" really means.
Design & Build Quality
Pick up the DENVER and the first reaction is usually: "Is that it?" The frame is light aluminium, welds are acceptable for the price, and the orange accents do their best to distract from the fact that this is built to a budget. You feel that budget in the details: slightly rattly joints after a few bumpy rides, a rear fender that doubles as a brake and feels as flimsy as it sounds, and grips that are more "plastic tool handle" than "ergonomic cockpit".
Cecotec's Bongo D20E goes for a more grown-up aesthetic. Matte dark finish, cleaner cable routing, and a folding joint that feels properly locked when you snap it in. In the hand it feels denser, more solid, like something intended for adult commuting rather than a toy aisle upgrade. The deck rubber is grippier, the finishing more consistent, and there's generally less of that "I hope this survives another semester" vibe.
Side by side, the Denver looks fun and loud, but also cheaper - because it is. The Cecotec doesn't scream for attention, it just quietly looks like it'll still be rolling once exam season is over.
Ride Comfort & Handling
Here the design choices come back to haunt - or help - you.
The DENVER rides on small honeycomb solid tyres with a basic front spring. On smooth tarmac at modest speeds, it's fine. Push it onto rougher pavement or those charmingly uneven old-town tiles and the story changes: the front spring softens the sharpest hits, but most of the chatter still travels straight into your hands, knees and fillings. After five or six kilometres of mixed city surfaces, my knees were drafting a formal complaint.
Handling is nimble but also a bit nervous. The small wheels and light frame mean it darts where you point it, but it also gets unsettled easily by cracks, potholes or tram tracks. You quickly learn to scan the road like a hawk and keep a generous safety margin.
The Cecotec, despite lacking any mechanical suspension, is simply easier to live with. The larger pneumatic tyres swallow the high-frequency buzz that the Denver transmits, and they round off sharper impacts better than that little front spring ever could. On decent asphalt, the D20E feels composed and planted; on rougher ground it's still not luxurious, but your wrists and ankles aren't begging for a union rep quite as fast.
Steering feel on the Cecotec is calmer and more predictable. The bar doesn't flutter as much over imperfections, and the slightly higher mass actually helps stability. In tight city weaving they're both agile, but only one of them lets you relax your grip a little and enjoy the ride rather than constantly bracing.
Performance
Neither of these scooters is going to rip your arms off - they're built to sit safely inside European rules - but the way they deliver their modest power is very different.
The DENVER's front hub motor chugs up to its limited speed in an unhurried, linear way. For absolute beginners that's reassuring; there's no sudden surge, no "oh, that was more than I expected" moment. But once you're used to scooters, it quickly feels flat. Any mild incline or heavier rider and you're in "kick along to help it" territory. On genuine hills, you're essentially doing assisted walking with decoration.
The Cecotec uses a similar rated power but with notably stronger peak punch. Off the line, especially in its more spirited mode, it feels sharper - not wild, just more eager. You get to cruise speed sooner, and it holds that speed better with a bit of headwind or a medium incline. Hills still aren't its speciality - this is no mountain goat - but you're less likely to become moving street furniture the moment the road tilts up.
Braking is where the two really part ways. Denver gives you an electronic front brake and a rear foot fender. The electronic brake is okay for gentle slowing, but it lacks feel, and the foot brake is... well, it's a foot brake. You have to move weight back, aim your shoe, and hope there's enough friction left on that tiny tyre. It works, but it's not exactly confidence-inspiring in panic stops or wet conditions.
The Cecotec counters with a proper rear disc and electronic assistance up front. One finger on the lever and you feel the disc bite with much more predictability, while the motor helps scrub speed without locking. Emergency stops feel controlled rather than improvised. On crowded bike paths and city streets, that difference is not subtle.
Battery & Range
If you believe manufacturer range numbers, I've got a bridge in Brooklyn to sell you. In the real world, with a reasonably sized adult, a bit of wind, and normal stop-and-go traffic, both scooters land well below their glossy brochure promises - but one has more breathing room.
The DENVER's battery is tiny. Think "power bank for your phone" rather than "serious transport pack". On short, flat hops it's enough; stretch into longer commutes and the gauge drops embarrassingly fast. Around town, I could treat it as a "there and back from the station" tool, but anything beyond a handful of kilometres one way started to feel like gambling. And as the charge dwindles, the already modest motor gets noticeably more lethargic.
The Cecotec's pack is still small by big-scooter standards, but it offers a tangible step up. Typical urban pace over mixed surfaces gave me an extra few kilometres of real use compared to the Denver, and crucially, it held decent performance until the battery was fairly low. You still shouldn't plan cross-city marathons, but most short commutes - a few kilometres each way - are covered with some margin, especially if you're light on the throttle.
Both charge in a lunchtime-sized window thanks to their modest capacities. Denver's small pack tops up quickly, which is handy if you're always close to a socket. The Cecotec takes a bit longer but still fits comfortably into a half-day at the office. Range anxiety is present on both if you misjudge your route; it just arrives much earlier on the DENVER.
Portability & Practicality
This is the one category where the DENVER can still pull rank - at least partly.
The SEL-80135O is genuinely featherlight. Carrying it up stairs or onto a bus is closer to hauling a bulky laptop bag than an e-scooter. The fold is quick, and once latched to the rear fender you can carry it briefcase-style without feeling like you're lifting weights. If you're small, young, or just very, very tired of heavy rental scooters, that difference is appealing.
But that lightness comes with caveats. The folding joint and cockpit develop more play over time, and the rear fender - which doubles as a brake latch point - doesn't inspire long-term confidence. It's portable, yes, but it also feels more like something you baby rather than throw into the daily chaos of public transport.
The Cecotec is still properly light by scooter standards, just not "almost toy-light". Carrying it up a flight or two is no drama, and the fold process is similarly swift. What you gain is robustness: the latch locks in with a more reassuring clunk, and the folded package feels like a single piece rather than a collection of parts politely agreeing to travel in the same direction.
In practical daily use, the Denver wins if your absolute top priority is the lowest possible weight, and your rides are short enough that durability stresses stay low. For everyone else, the Cecotec hits a much more comfortable balance between lightness and feeling like proper transport equipment.
Safety
Safety on tiny wheels is all about three things: stopping, sticking to the ground, and being seen.
We've already covered braking: Cecotec's disc plus electronic assist is simply in a different league from Denver's electronic-plus-foot arrangement. With the Bongo, you squeeze a lever and decelerate in a straight, predictable line. With the Denver, hard stops require technique and composure - not ideal when a car door suddenly opens ahead.
Tyres matter more than most new riders realise. Denver's solid honeycomb wheels eliminate punctures (and that's nice), but they also offer less grip and no real give. Hit a wet manhole cover at speed and you feel that "skatey" uncertainty more quickly. The Cecotec's air tyres deform around imperfections, offer better traction in the damp, and maintain a more secure contact patch when you're cornering or braking hard.
Lighting on both scooters is "good enough to be noticed, not great for seeing". The Denver's front light is particularly weak for unlit areas; the Cecotec does a touch better, but if you ride at night away from street lamps, you'll want an additional bar or helmet light with either scooter. Reflectors are present on both; Denver is very clearly built to satisfy entry-level European requirements, while Cecotec adds a bit of polish.
Stability at speed? Neither goes especially fast, but the Cecotec's chassis and tyres give a calmer, less twitchy ride near the limiter. On the Denver, I found myself backing off on rougher sections purely out of mechanical sympathy - and self-preservation.
Community Feedback
| DENVER SEL-80135O | CECOTEC BONGO D20E CONNECTED |
|---|---|
|
What riders love Ultra-low weight, super easy to carry; no punctures thanks to solid tyres; very low entry price; compact fold that disappears under desks; fun orange styling; simple controls; quick top-ups due to small battery. |
What riders love Light but still "serious" feeling; strong, confidence-inspiring brakes; smoother ride from air tyres; handy app with stats and settings; clean design; sturdy fold; good feature set for the money. |
|
What riders complain about Real-world range far below claims; very weak hill performance; harsh, rattly ride on rough surfaces; units arriving with battery/charger issues; awkward foot brake; dim front light; noticeable vibration and looseness over time; performance nosedives with heavier riders. |
What riders complain about Range still shorter than many hoped; struggles on steeper hills; no mechanical suspension; flimsy charging port cover; modest headlight; mixed experiences with Cecotec support; tricky valve access; performance drop when battery gets low. |
Price & Value
On sticker price alone, the DENVER plays the "I'm cheap, love me" card hard. It often undercuts the Cecotec noticeably. If your budget is tight and your expectations are as short as your commute, that matters.
But value isn't just the price tag; it's what you get per kilometre of safe, comfortable use. And here, the picture blurs. The DENVER demands you accept a tiny usable range, limited braking, harsher ride and more variable quality control. It's the sort of scooter you buy knowing it's a stepping stone, not a long-term solution.
The Cecotec asks for more up front but gives back in all the places that actually matter day to day: braking that doesn't make you nervous, tyres that don't beat you up, connectivity that makes battery management easier, and a general sense of "this is a transport tool, not a toy". Over a year of regular use, that gap in quality tends to pay for itself in fewer frustrations.
Service & Parts Availability
Denver, as a mass-market electronics brand in Europe, is everywhere. That means the scooters are easy to buy and basic spares are reasonably findable. However, this is still a budget product line; you're unlikely to find deep support from specialist scooter shops beyond standard generic parts, and warranty experience can vary with the retailer.
Cecotec is also well-established, with broad distribution and official support channels. The flip side of being a big appliance brand is bureaucracy: community stories mention slower responses and some hassle getting warranty cases processed. On the plus side, the Bongo's generic components - disc brakes, standard tyres - mean any competent bike or scooter shop can handle most wear-and-tear fixes.
Between the two, neither is a shining benchmark for boutique, personalised service, but Cecotec at least offers a platform that third-party shops are happier to work on. The Denver's solid tyres and foot brake rear setup are more of a "you're on your own, kid" situation in many workshops.
Pros & Cons Summary
| DENVER SEL-80135O | CECOTEC BONGO D20E CONNECTED |
|---|---|
Pros
|
Pros
|
Cons
|
Cons
|
Parameters Comparison
| Parameter | DENVER SEL-80135O | CECOTEC BONGO D20E CONNECTED |
|---|---|---|
| Motor power (rated) | 250 W | 250 W (500 W peak) |
| Top speed | 20 km/h | 20 km/h |
| Claimed range | 12 km | 20 km |
| Realistic range (approx.) | 7 km | 12 km |
| Battery capacity | 144 Wh (36 V, 4,0 Ah) | 187,2 Wh (36 V, 5,2 Ah) |
| Weight | 10,7 kg | 12,2 kg |
| Brakes | Front electronic + rear foot | Rear disc + front E-ABS |
| Suspension | Front spring | None (relies on tyres) |
| Tyres | 8" solid honeycomb | 8,5" pneumatic |
| Max load | 100 kg | 100 kg |
| Water resistance | IPX4 | Not specified (typical light splash) |
| Connectivity | No | Bluetooth app |
| Approx. price | 225 € | 329 € |
Final Verdict - Which Should You Choose?
If you strip away the marketing and just look at how these scooters behave under real riders in real cities, the Cecotec Bongo D20E Connected comes out as the more complete machine. It rides more comfortably, stops more convincingly, stretches each charge further, and feels like it was designed as a transport solution rather than a colourful impulse buy.
The DENVER SEL-80135O has its place: you're on a tight budget, you need the lightest thing you can reasonably stand on, and your riding profile is basically flat, short hops that would otherwise be annoying walks. As a first taste of e-scooters for a lightweight teen or student, used with realistic expectations, it can be fine.
For most adults who plan to commute regularly, though, the compromises pile up quickly: range that vanishes sooner than you'd like, braking that never quite feels modern, and a ride that reminds you, at every crack in the pavement, exactly how little you paid. The Cecotec isn't perfect, but it crosses the line from "gadget" into "tool" much more convincingly - and in daily life, that difference matters far more than saving that last hundred euros.
Numbers Freaks Corner
| Metric | DENVER SEL-80135O | CECOTEC BONGO D20E CONNECTED |
|---|---|---|
| Price per Wh (€/Wh) | ✅ 1,56 €/Wh | ❌ 1,76 €/Wh |
| Price per km/h of top speed (€/km/h) | ✅ 11,25 €/km/h | ❌ 16,45 €/km/h |
| Weight per Wh (g/Wh) | ❌ 74,31 g/Wh | ✅ 65,17 g/Wh |
| Weight per km/h (kg/km/h) | ✅ 0,535 kg/km/h | ❌ 0,61 kg/km/h |
| Price per km of real-world range (€/km) | ❌ 32,14 €/km | ✅ 27,42 €/km |
| Weight per km of real-world range (kg/km) | ❌ 1,53 kg/km | ✅ 1,02 kg/km |
| Wh per km efficiency (Wh/km) | ❌ 20,57 Wh/km | ✅ 15,60 Wh/km |
| Power to max speed ratio (W/km/h) | ✅ 12,5 W/km/h | ✅ 12,5 W/km/h |
| Weight to power ratio (kg/W) | ✅ 0,0428 kg/W | ❌ 0,0488 kg/W |
| Average charging speed (W) | ❌ 48,00 W | ✅ 53,49 W |
These metrics put some numbers on the trade-offs: Denver is cheaper per unit of battery and slightly lighter relative to speed and power, but Cecotec does far better at converting each euro and each kilogram into real, usable kilometres, and it uses its battery more efficiently. The charging speed and range-related ratios underline why the Bongo feels like the more capable commuter despite its higher price.
Author's Category Battle
| Category | DENVER SEL-80135O | CECOTEC BONGO D20E CONNECTED |
|---|---|---|
| Weight | ✅ Noticeably lighter to carry | ❌ Heavier, still manageable |
| Range | ❌ Feels very short | ✅ Comfortably longer real range |
| Max Speed | ✅ Matches legal limit | ✅ Matches legal limit |
| Power | ❌ Weak, struggles on inclines | ✅ Stronger punch, holds speed |
| Battery Size | ❌ Tiny, drains quickly | ✅ Bigger, more usable |
| Suspension | ✅ Basic front spring present | ❌ No mechanical suspension |
| Design | ❌ Looks cheap, toyish | ✅ Sleek, grown-up aesthetic |
| Safety | ❌ Foot brake, solid tyres | ✅ Disc brake, better grip |
| Practicality | ❌ Too limited for many | ✅ Better daily usability |
| Comfort | ❌ Harsh, rattly ride | ✅ Smoother on real roads |
| Features | ❌ Very barebones | ✅ App, better display |
| Serviceability | ❌ Odd parts, solid tyres | ✅ Standard parts, easier work |
| Customer Support | ✅ Simple, retailer-driven | ❌ Bigger brand, slower feel |
| Fun Factor | ❌ Wears off quite fast | ✅ Feels more engaging |
| Build Quality | ❌ Feels budget, loosens | ✅ Tighter, more solid |
| Component Quality | ❌ Very entry-level parts | ✅ Better brakes, tyres |
| Brand Name | ❌ Generic mass-market image | ✅ Stronger consumer brand |
| Community | ❌ Smaller, less active | ✅ Wider user base |
| Lights (visibility) | ❌ Dim, basic setup | ✅ Slightly better implementation |
| Lights (illumination) | ❌ Weak for dark paths | ❌ Also weak for darkness |
| Acceleration | ❌ Gentle, often sluggish | ✅ Sharper, more responsive |
| Arrive with smile factor | ❌ Novelty fades quickly | ✅ Still fun after weeks |
| Arrive relaxed factor | ❌ More tense, harsh ride | ✅ Calmer, more composed |
| Charging speed (experience) | ✅ Tiny pack, quick top-ups | ❌ Slightly longer sessions |
| Reliability | ❌ More QC complaints | ✅ Generally more consistent |
| Folded practicality | ✅ Very small and light | ❌ Slightly bulkier folded |
| Ease of transport | ✅ Easiest to lug around | ❌ Light, but not feather |
| Handling | ❌ Twitchy on rough ground | ✅ More stable, predictable |
| Braking performance | ❌ Weak, awkward foot rear | ✅ Strong disc, E-ABS |
| Riding position | ❌ Cramped deck, basic bars | ✅ More natural stance |
| Handlebar quality | ❌ Hard grips, some play | ✅ Better grips, stiffer |
| Throttle response | ❌ Blunted, uninspiring | ✅ Smoother, more precise |
| Dashboard/Display | ❌ Very basic feedback | ✅ Clearer, app-backed data |
| Security (locking) | ❌ No smart options | ✅ App lock helps a bit |
| Weather protection | ✅ IPX4, basic splashes | ❌ Reasonable, but unspecified |
| Resale value | ❌ Low demand, budget image | ✅ Brand helps resale |
| Tuning potential | ❌ Not worth modding | ✅ Some scope via app |
| Ease of maintenance | ❌ Solid tyres complicate work | ✅ Standard tyres, normal brakes |
| Value for Money | ❌ Cheap but compromised | ✅ Better balance overall |
Overall Winner Declaration
In the Numbers Freaks Corner, the DENVER SEL-80135O scores 5 points against the CECOTEC BONGO D20E CONNECTED's 6. In the Author's Category Battle, the DENVER SEL-80135O gets 8 ✅ versus 31 ✅ for CECOTEC BONGO D20E CONNECTED.
Totals: DENVER SEL-80135O scores 13, CECOTEC BONGO D20E CONNECTED scores 37.
Based on the scoring, the CECOTEC BONGO D20E CONNECTED is our overall winner. Between these two, the Cecotec Bongo D20E Connected simply feels more like a real companion and less like a disposable experiment. It's the one that lets you forget about the scooter and just get on with your day, which is exactly what a good commuter should do. The DENVER SEL-80135O has its charm as a super-light, super-cheap doorway into e-scooters, but it runs into its limits quickly once real-world demands show up. If you want something that will still make sense months down the line, the Cecotec is the one that's far more likely to keep you rolling - and smiling - without constant compromises.
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.

