Umetrix Data 对比 XCAL-Smart 的使用情况和统计数据

Wireless experts around the world use Datum for the most accurate and reliable measure of mobile data network performance. Now you can too. The simple and elegant user interface allows you to perform quick and convenient speed tests, track and map your test history online, and compare your results against the cumulative experience of all users. Unlike other speed tests, Datum’s method for measuring data performance delivers more accurate results, especially because it’s not downloading ads to your device! Tests performed include: HTTP PING Web Browsing