Striver (Fen-Dou-Zhe; Chinese: 奋斗者) bathyscaphe is a type of deep-submergence vehicle built in the People's Republic of China (PRC).

Striver is equipped with two mechanical arms, seven underwater cameras, seven sonars, hydraulic drills, and other scientific devices.

On 10 November 2020, the bottom of the Challenger Deep was reached by Striver with three Chinese scientists (Zhang Wei, Zhao Yang, and Wang Zhiqiang) onboard whilst livestreaming the descent to a reported depth of 10,909 m (35,791 ft).

[clarification needed] In comparison to the ten-hour endurance of Deep Sea Warrior, Striver lasts for six hours.

[8][5]The mechanical arms of Striver were developed by Shenyang Institute of Automation, and each is capable of handling 60 kg of weight.