Two of the three Swiss network operators compared head-to-head. Swisscom with the broadest coverage and full service, Salt with its own network and more aggressive pricing. Here you are comparing not just tariffs but two different networks.
Swisscom has the strongest coverage in rural and alpine areas and the broadest roaming and bundle offering. Salt is clearly more aggressive on price and is also strong in cities and agglomerations. One thing to watch at Salt: many tariffs are sold through promo prices whose regular base price is considerably higher, so compare the permanent price rather than the promotion. If you are often away from the centres, Swisscom is the safer choice. If you are mainly in the city and watching the price, Salt gives you more for your money.