Mobile technologies such as evdo and hspa provide wide area coverage with consistent bandwidth guaran - tees ; while technologies like wifi provide high band - width and low latency .

诸如evdo和hspa这样的移动技术能够利用协调的有保证的带宽提供宽的覆盖范围；而想wifi这样的技术提供高的带宽和低的等待时间。