Both the scooters, Hero Electric Optima and Kinetic Green Zoom, have their own unique features. The LX variant of Optima is a slow-speed scooter with a top speed of 25kmph, while the Optima CX has a top speed of 45kmph. The Optima CX is packed with several features such as a digital instrument cluster, cruise control, reverse mode, and LED headlights. It is powered by a 550W BLDC hub motor and a 52.2V, 30Ah lithium ferro phosphate battery pack that takes 4-5 hours to charge. 

With a claimed range of 82km for the standard CX and 140km for the CX ER variant, the Optima CX offers a top speed of 45kmph. Kinetic Green Zoom, on the other hand, has a price tag ranging from Rs. 77,500 to Rs. 77,500 and is available in 2 variants and 3 colors. It is powered by a 250 W Motor and has Disc front and rear brakes. 

The charging time is 3 hours and it returns a range of 85-95 km/charge. If you're looking to make a decision, I would suggest taking a test ride.