yes, all Chinese bikes let you do that.
If you have arthritis in your leg joints, you should go for a bike with a throttle.
if you have also arthritis in your wrists, get a bike with a thumb throttle. Bikes with throttle still need to be pedaled a little bit when you start to comply with the law. The motor will start about half a turn after you start pedaling but the throttle needs about 2 seconds to activate after to start pedaling.
You can pedal as little or as much as you like with Chinese bikes, you don't have to push much on the pedals, just increase the assist level if you want to go fast.