Motor wattage is an important specification, but it is not a complete description of ride quality. A 750W motor and a 1000W motor may differ in continuous output, peak output, controller current, efficiency, torque curve, and cooling design. Some sellers advertise peak power prominently, so ask which number the label actually means.
Compare more than nameplate power
A productive comparison includes torque at the wheel, battery voltage, available current, hill-climb testing, rider load, gearing, and heat management. A lower-power system with good torque control may feel smoother for commuting than a larger motor with aggressive throttle response.
Battery and reliability implications
Higher potential output can require stronger connectors, correctly sized wiring, reliable battery management, and sufficient brake capacity. Frequent use at elevated assistance levels may shorten usable range. Service parts and firmware support should be evaluated alongside speed and power.
Legal limits first
Many countries and local jurisdictions impose assistance power and speed limits; a 750W or 1000W product may not qualify as a bicycle in a given market. Check the local definition, certification obligations, and where the vehicle can legally be used before purchase or import.