The KingSong S9 is a electric unicycle listed at $449. Manufacturer specs put it at 350W of rated motor power, a 115Wh battery, a claimed 7 mile range, and a 9 mph top speed, at 17 lbs.
Next to the 5 other electric unicycles in its price band, its strongest numbers are charge time (2 h vs 4.4 h avg), weight (17 lbs vs 31 lbs avg), and speed for its weight (0.55 mph/lb vs 0.49 mph/lb avg). The tradeoffs are claimed range (7 mi vs 24 mi avg) and battery capacity (115Wh vs 350Wh avg).
Spec-based analysis, computed from manufacturer-published numbers and compared against 5 similar electric unicycles by price. No hands-on testing yet.
2 h vs 4.4 h avg
17 lbs vs 31 lbs avg
0.55 mph/lb vs 0.49 mph/lb avg
7 mi vs 24 mi avg
115Wh vs 350Wh avg
3 features vs 6 features avg
350W vs 640W avg
Compared with 5 similarly priced models, from manufacturer specs.
Category scores out of 100 from manufacturer specs, with the median of the 5 e-unicycles in our database for context
Scores out of 100. The gray tick marks the median of similarly priced e-unicycles.
How to read this: each spoke is a category score out of 100, computed from manufacturer specs on fixed scales. Every vehicle is measured on the same scales, so scores don't shift as our database grows. Further from the center is better. The gray line shows the median score of similarly priced e-unicycles for context.
KingSong S9
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