Is the Himiway B3 good for daily commuting?

Yes, if your ride is mostly paved and under about 15 miles each way. The torque sensor and 7-speed gearing make stop-and-go city riding comfortable, and it folds for storage at work.

How far can it really go on a charge?

Himiway claims up to 70 miles, but that figure assumes low assist and flat terrain. Expect roughly half that with liberal pedal assist, and less again on throttle alone.

Can I carry it up stairs or onto a bus?

It folds, but it is a heavy bike with a 20-inch frame and battery. Most owners can lift it short distances; carrying it up several flights or onto crowded transit is a chore.

Does it have a torque sensor or a cadence sensor?

It uses a torque sensor, which measures how hard you pedal and responds proportionally. That gives a more natural feel than the cadence sensors found on many budget folding e-bikes.

What kind of riding are the 2.4-inch tires suited to?

They are wide enough for rough pavement, gravel paths and light trails, but this is a hybrid folder, not a mountain bike. Keep it off technical singletrack.

How does it compare with other folding e-bikes?

Its main edge over budget folders is the torque sensor and the LG-branded battery. Rivals tend to be lighter or cheaper, but often use cadence sensors and less proven cells.