Will's Gym, tucked away in the basement of U-Town mall, is a smart set-up with plenty of new-fangled equipment of all kinds. There's also a boxing ring, which can be used for an additional charge. The changing rooms are decent and, to make life that little bit easier, Will's allows you to rent a locker on a permanent basis (for 200RMB a month), which means you can leave your kit there - so you don't have any excuse to miss a session.
Membership at Will's Gym U-Town also allows you to use the Chaowai Soho branch.
For more information on Will's Gym, including pricing, see our gyms feature.