How fast does it charge a phone?

The maker claims 0% to 50% in 30 minutes over the PD output. That figure assumes one device and a compatible phone; splitting the 28.5W across several devices slows each one.

Can it charge a laptop?

No. Total output is 28.5W, well below what most laptops need, and the built-in cables are phone connectors. It is meant for phones, earbuds and small accessories.

Do I need to bring a cable?

No. Lightning-compatible, Micro USB and USB-C cables are built in, and the wall plug folds out to recharge the bank itself. You only need a cable for a device those connectors don't fit.

Which phones charge wirelessly on it?

Any Qi-enabled phone or earbuds case. Place it on the pad on top; it charges slower than the wired outputs, so use a cable when you need speed.

How many charges does 10,000 mAh give?

Roughly two full charges for a typical phone, less if you charge several devices or use wireless. Capacity is rated at the cell, so some energy is lost in conversion.