Vodafone 5G network opens new front in Britain’s wireless wars

Vodafone Group Plc switched on the U.K.’s second 5G wireless network on Wednesday, kicking off a commercial battle with dominant rival EE that could shape a decade of sales.

The technology’s faster download speeds and more reliable connections give the first movers an opportunity to snatch a bigger share of a saturated market. Back in 2012, EE — now owned by BT Group Plc — launched 4G services almost a year ahead of the pack, an edge that cemented its position as the U.K.’s largest mobile carrier.