Is Unicom card 4G signal good?

"The advantages of Unicom's 4G network are still obvious, mainly including these aspects:

1. Fast Internet access: the network speed can reach150 Mbps;

2. Stable speed: it has the dual guarantees of 4G network 150Mbps and 42Mbps for 3G network, and the speed is stable;

3. Good coverage: 3G network Unicom has been operating for many years, which is very mature and has good coverage; The 4G network has built more than 10000 base stations, and the main city and street signals are very good;

4. Wide roaming: 80% countries and regions in the world support Unicom network roaming, and only a few underdeveloped countries do not. "