CNET Australia has yet to test the S150, but we have reviewed the top-of-the-range model, the S300t.
The cheaper S150 misses out on that unit's traffic messaging, FM transmitter and video playback. Standard features on the S150 include red and speed light camera alerts, Bluetooth hands-free, 3D landmarks, school zone warnings, junction view and lane guidance. There's also the hit-and-miss Glide Touch interface that mimics the iPhone's swipe to scroll feature, but with much less success.
Read the full review of the S300t here.