Verizon's low-band "nationwide 5G" network delivers slower speeds on an iPhone 12 than the carrier's 4G LTE network, according to new testing. Credit: Andrew O'Hara, AppleInsider The carrier launched its "nationwide" 5G network in October. But the system is based on dynamic spectrum sharing (DSS), which reuses 4G channels for 5G and may actually be slower than straight 4G LTE. PC Mag, Verizon's DSS 5G is "frequently slower than 4G, and rarely faster." That's in stark contrast to Verizon's other offerings. Its 4G LTE network often delivers faster speeds than the low-band 5G networks from either T-Mobile and AT&T. The carrier's UltraWideband 5G network is top-tier, but has extremely limited coverage.