RF signal · RSRP · RSRQ · SINR · LTE/5G
Want to know how strong your mobile signal really is? SigBench is a free Android signal strength test that reads the radio directly and shows your live RF signal — RSRP, RSRQ and SINR — with serving cell, band and operator. It's the fast way to check your mobile signal at home, at a site, or on the move.
Reference Signal Received Power: how strong the serving LTE/5G cell is where you stand. Higher (closer to 0 dBm) is stronger.
Reference Signal Received Quality: whether that strength is usable, or drowned by interference and load from neighbouring cells.
Signal-to-interference-plus-noise ratio: a practical predictor of whether the link can hold a decent data rate.
1. Install the free app and open it. 2. Tap Start to begin logging. 3. Open the Live tab to read RSRP/RSRQ/SINR, band and serving cell in real time — the Map colours your route by signal strength so you can see dead spots. It works without GPS and collects no personal data.
Comparing operators instead? See MNO benchmarking. Checking Wi‑Fi/broadband? Run the speed test.
Install SigBench, start logging, and open the Live tab — it shows your current LTE/5G RF signal (RSRP, RSRQ, SINR), serving cell, band and operator, and maps signal strength as you move.
Roughly: above −90 dBm is strong, −90 to −105 dBm is fair, below −110 dBm is weak. Check RSRQ and SINR to see if the signal is actually usable.
Yes — SigBench reads the radio directly and uses battery-friendly positioning, so GPS isn't required.