Actualités W500 vs W300 Signal Booster UK 2026: £265 Band 1 3G All Networks 500m² 75dB 50 Users 8dBi Panel 27dBm Dual Cable vs £183.82 300m² 72dB 30 Users 6dBi Panel 20dBm — Which W Series 3G Flagship Is Right for Your Property Size?