Categories:
JB Series,
【JB】Pre-purchase Check
The signal strength is mainly affected by the telecommunications company’s network infrastructure. The factors that influence the signal strength are as follows:
The distance to the base station
Presence of obstacles
Presence of signal interference
Antenna performance
Frequency band Since our company’s eSIM and SIM cards are products from Japan’s local docomo telecom company, using the same signal, the speed of our eSIM and SIM cards are the same. As for other international roaming eSIMs, there may be cases where roaming is done through smaller telecom companies, leading to significant differences in speed and coverage.