This study compared the 4G/LTE performance of Libyana and Almadar Aljadid at five selected locations in Zawiya City using five quality-of-service and three signal-quality indicators. Across four daily periods on three days, 360 readings were summarized as 120 session means and 60 matched visits. Within-visit operator differences were summarized at the location level to account for repeated measurements; a mixed-effects model assessed sensitivity, and Holm adjustment covered eight indicators. Mean download speed was 3.63 Mbps for Almadar Aljadid versus 3.50 Mbps for Libyana, which recorded higher mean upload speed and lower mean latency and jitter. The latency difference (Libyana minus Almadar Aljadid) was −2.750 ms (95% CI: −3.999 to −1.501 ms; Holm-adjusted p = 0.029); no other indicator reached significance after adjustment. Descriptively, the evening period showed the poorest performance across the five service indicators, some operator differences changed direction across locations, and SINR–service associations weakened after adjustment for measurement factors. The findings are limited to the measured locations, dates, and conditions and do not estimate citywide performance. Future campaigns should sample more locations and dates and record cell configuration and the test server........................ Keywords:...........4G/LTE networks, quality of service, signal quality, field measurements, spatial and temporal variation, Zawiya City.