To be honest, I have never heard of Genma. I only know that Emma electric cars are very famous and very good. But Jie Ma is endorsed by Yao Ming, so it won't be any worse. Within the same brand, the one with higher price is definitely better. It's up to you.

The company owns two well-known brands, "GAMMA" electric vehicle and bicycle brand; and "GAMMAX" professional sports bicycle brand. The company has passed ISO9001-2008 quality management system certification and Japanese SG certification. Its products comply with Japanese JIS standards and meet the more stringent Japanese Bicycle Association BAA quality requirements. The Jiema brand has successively won honors such as "Tianjin Famous Trademark", "Tianjin Famous Brand", "China Quality Integrity Enterprise", National Export Enterprise "3A Credit Unit" and nationally recognized "High-tech Enterprise". In 2007, Jiema Bicycle Won the title of "China's Famous Trademark". The entire series of products is sold to most areas in mainland China through the company's sales organization, business partners and many foreign merchants. In addition to GAMMA's own brand "GAMMA", it also OEMs and processes world-renowned brands such as ELLE, Jeep, Wimbledon, Daimler Chrysler, FILA, and Dunlop. Its products are sold in Japan, the United States, Germany, Russia, Denmark, South Korea and other places.