From the website:
Equipped with TMM torque sensor and professional electric boosting system, the Xiaomi Mi QiCycle Electric Folding Bicycle can automatically sense your tread power and output the appropriate electrical power to assist cycling.
Dimensions
Weight 14.5kg
Wheel Diameter 16"
Display
Screen Size 1.8"
Screen Type 160 x 128 TFT Screen
General
Material Aluminum
Maximum Load Capacity 100kg
Maximum Speed 20km/H
Hardware
Crankset 52T x 170mm Aluminum Cranks
Materials
Frame Aluminum Folding Frame
Performance
Torque 7.3N.m
Power
Battery Capacity 5800mAh
Battery Type 18650 Lithium-ion Battery
Charging Time About 3 Hours
Rated Power250W high-speed motor
3-speed gear hub
4 assistant modes
Torque sensor helps magnify your strength
Cheapest so far I guess.
20 km/h is pretty pathetic
250 watts is pretty pathetic.
Ideal electric bike would be 25 km/h and 1,000 Watt.