Not for frequent travelers

- Does the device (eg cross-country trips) for some time no reception, it establishes the connection can not be reliably restored as soon as a network is available. Whoever does not plan pays is then before half a day unnoticed unattainable.
- When the Navi S2 is an absolute disaster. The battery discharges faster than it is recharged via USB. When the battery is fully charged before each ride to get four to five hours of it. But one must look at the goal immediately after the next socket then.
- GPS reception is significantly worse compared to HTC Desire. One use, for example by means of suction cup on the windshield is definitely hip (and works fine). My old Desire I could use in my car without any problems near the bottom in the cup holder on the center console for navigation. The S2 acknowledges this application form with regular interruptions.