Product comparison · Electric Scooters
Isinwheel S9 Pro vs Hiboy S2 SE
The Isinwheel S9 Pro scores 5.2 and ranks 59th of 78 in Electric Scooters; the Hiboy S2 SE scores 5.0 and ranks 66th of 78 in Electric Scooters. The S9 Pro leads on weight, the S2 SE on ride hardware.
All 10 Isinwheel products 
Isinwheel S9 Pro
$280 · 59th of 78 in Electric Scooters
Buy Now- Weight — 10 against 7
- Features — 7 against 4
All 17 Hiboy products 
Hiboy S2 SE
$310 · 66th of 78 in Electric Scooters
Buy Now- Ride Hardware — 3 against 2
- Battery — 2 against 1
Across everything we scored, Isinwheel S9 Pro sits 0.21 ahead — led by weight.
Verdict
S9 Pro ahead · +0.21 (5.2 vs 5.0)Pick the Isinwheel S9 Pro when
Weight matters10vs7
Features matters7vs4
Pick the Hiboy S2 SE when
Warranty & support matters3vs1
Ride hardware matters3vs2
Battery matters2vs1
Scored 20 October 2026 from published specs and owner reviews. We don't buy or test units. How we score
Usability Isinwheel S9 Pro and Hiboy S2 SE, scored 0 to 10
WeightIsinwheel S9 Pro: 10 (higher)Hiboy S2 SE: 7
Isinwheel S9 Pro
- 27 lb (manual)
Hiboy S2 SE
- 37.8 lb
FeaturesIsinwheel S9 Pro: 7 (higher)Hiboy S2 SE: 4
Isinwheel S9 Pro
- front and rear lights, turn signals, app lock, display, cruise control
Hiboy S2 SE
- one-step fold, lights, display
- Water: IPX4 stated, below the IPX5 point
BatteryIsinwheel S9 Pro: 1Hiboy S2 SE: 2 (higher)
Isinwheel S9 Pro
- 270 Wh (36 V, 7.5 Ah) on the commuter ladder
- Conflict: the store spec says 36 V 7.8 Ah
Hiboy S2 SE
- 281 Wh (36 V, 7.8 Ah) on the commuter scooter ladder
Ride HardwareIsinwheel S9 Pro: 2Hiboy S2 SE: 3 (higher)
Isinwheel S9 Pro
- rear mechanical disc plus electronic front brake, no suspension, 8.5-inch tires
Hiboy S2 SE
- drum brake, no suspension, 10-inch solid front and air rear tires
Warranty & SupportIsinwheel S9 Pro: 1Hiboy S2 SE: 3 (higher)
Isinwheel S9 Pro: 6 Months · Hiboy S2 SE: 1 Year.
Isinwheel S9 Pro
- six months on battery, motor and controller
- Promotion: page offers a free two-year warranty for a limited time
Hiboy S2 SE
- one year on battery and motor
Same score
MotorIsinwheel S9 Pro: 4Hiboy S2 SE: 4
Isinwheel S9 Pro
- 350 W rear hub
Hiboy S2 SE
- 350 W nominal hub
- Peak: 430 W claimed, not scored
VerificationIsinwheel S9 Pro: 6Hiboy S2 SE: 6
Isinwheel S9 Pro
- cTUVus certificate CU 72502272 names the S9 Pro to UL 2272; no second record found
- Searched: Certipedia SGS Intertek UL TÜV SÜD CPSC Health Canada
- Record: TÜV Rheinland Certipedia, ANSI/CAN/UL 2272:2024, i8, i9, i9 Pro, S9, S9 Pro (page 1; page 2 adds i8M EC6 i9M), Shenzhen Xincheng Times Technology Co.,Ltd
Hiboy S2 SE
- UL certificate UL-US-26135634-0 names S2 SE; listed under Freeman IT FKIS.E535405
- Searched: UL Solutions certificate (brand-hosted) UL Certipedia Intertek SGS TÜV SÜD CPSC Health Canada
- Record: UL Solutions certificate (brand-hosted), ANSI/CAN/UL 2272, S2 Neo, S2 2.0, S2 Nova, S2 SE, S2 SE NEW, S2 XE, S3, Freeman IT Limited
- Record: UL Product iQ, ANSI/CAN/UL 2272, S2 SE, Shenzhen Freeman IT Limited
Not scored for either
- ValueIsinwheel S9 Pro: not scoredHiboy S2 SE: not scored
Social score about the Isinwheel S9 Pro and the Hiboy S2 SE
RedditIsinwheel S9 Pro: 6 (higher)Hiboy S2 SE: 4
The Isinwheel S9 Pro reading covers its product line; the Hiboy S2 SE reading covers the whole brand.
Isinwheel S9 Pro
Read the full summary
- Product-line. r/ElectricScooters owners of the S9 Pro call it a good first scooter that works well for its price (Apr-Sep 2025)
Hiboy S2 SE
Read the full summary
- r/ElectricScooters: a MAX Pro owner notes the sub's dislike of Hiboy while praising its build and support (Apr 2024)
- a post titled 'Avoid Hiboy, Total Scam Experience' reports a scooter not delivered after three weeks (Aug 2025)
GoogleIsinwheel S9 Pro: 6Hiboy S2 SE: 6
The Isinwheel S9 Pro reading covers its product line; the Hiboy S2 SE reading covers its product line.
Isinwheel S9 Pro
Read the full summary
- Product-line.
- TechNuovo rode an earlier UK S9 Pro (25 km/h, tubed tires): bright lights and indicators, plug-and-play setup; the video is featured on the brand page, unit source not stated (Mar 2025)
Hiboy S2 SE
Read the full summary
- Product-line.
- TechGearLab (bought unit) measured the sibling S2 Pro at 17.1 mi of range and 17.3 mph and found its rear suspension stiff under braking (Sep 2026)
AmazonIsinwheel S9 Pro: 5Hiboy S2 SE: 7 (higher)
The Isinwheel S9 Pro reading covers its product line.
Isinwheel S9 Pro
Read the full summary
- Product-line.
- Amazon US listing B0HF7ZHPMR shared by the S9 and S9 Pro, sold by the brand seller isinwheel-Shop: 4.1 stars from 16 ratings (Oct 2026)
Hiboy S2 SE
Read the full summary
- Product.
- Amazon US listing for the S2 SE (from Hiboy) averages 4.3 stars from 120 ratings (Sep 2026)
Isinwheel S9 Pro vs Hiboy S2 SE: pros and cons
Isinwheel S9 Pro
Overall score 5.2Strengths
- Very light to carry
- Turn signals built in
- App lock and cruise control
- Folds small for storage
Drawbacks
- No suspension
- Short range
- Tire type stated two ways
- Single rear disc brake
- Six-month warranty on battery and motor
Hiboy S2 SE
Overall score 5.0Strengths
- Folds in one step for trains and offices
- Light enough to carry upstairs
- Simple controls with no app needed
- Air-filled rear tire softens the ride
Drawbacks
- Small battery limits range
- No suspension on rough roads
- Only one friction brake
- Only one year of warranty
- No app lock or cruise control
Isinwheel S9 Pro vs Hiboy S2 SE: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
- BrakesIsinwheelMechanical discHiboyDrum
- WarrantyIsinwheel6 MonthsHiboy More1 Year
Same on both
- CommuterType
- Not listedE-bike class
- Up to 400 WhBattery
- Single motorMotor
- Up to 20 mphTop speed (claimed)
- Up to 25 miRange (claimed)
- Up to 40 lbWeight
- Up to 250 lbMax rider load
- NoneSuspension
- FoldsFolding
- UL 2272 listedSafety listings
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Not sold on either one?
The top-scored and the cheapest other pick from each brand.
More from Isinwheel 8 scored in Electric Scooters
- Battery: 801-1,000 Wh vs up to 400 Wh
- Brakes: Hydraulic disc vs mechanical disc
- Suspension: Full vs none
- Safety listings: none listed
More from Hiboy 11 scored in Electric Scooters
- Battery: 601-800 Wh vs up to 400 Wh
- Suspension: Full vs none
- Suspension: Rear vs none
Isinwheel S9 Pro vs Hiboy S2 SE: common questions
Is the Isinwheel S9 Pro better than the Hiboy S2 SE?
On our scores, the Isinwheel S9 Pro is ahead, 5.2 against 5.0. The Isinwheel S9 Pro leads on weight (10 against 7) and features (7 against 4). The Hiboy S2 SE leads on ride hardware (3 against 2), battery (2 against 1) and warranty & support (3 against 1).
Which is cheaper, the Isinwheel S9 Pro or the Hiboy S2 SE?
The Isinwheel S9 Pro, at $280 against $310: $30 less.
Which has the longer warranty, the Isinwheel S9 Pro or the Hiboy S2 SE?
The Hiboy S2 SE: 1 Year, against 6 Months.
What do owners say about the Isinwheel S9 Pro and the Hiboy S2 SE?
Across 3 independent sources scored for both, the Isinwheel S9 Pro is ahead on Reddit; the Hiboy S2 SE is ahead on Amazon; Google is level.
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Scores calculated 20 October 2026 · Products excluded where fewer than two independent sources cover them · · How we score