Cellular-Z can help you check wireless signal strength quality, network info, frequency channel, speed of telecom cell, base station, WiFi, GPS around you. Main functions: 1. Dual-SIM phone network (SIM, operator, service cell, base station, signal strength quality, neighboring cell list). 2. WiFi (connected hotspot, nearby WiFi, 2.5G and 5GHz, WiFi channel, WiFi standard, IP, DNS, etc.). 3. Current location, latitude and longitude, altitude, speed, GPS satellite, NMEA log. 4. Device information (battery, screen, memory/storage, hardware, system, etc.). 5. Network speed test, speed measurement, network speed. 6. Test signal trajectory, indoor signal coverage.