New unlimited plans for Sprint now part of T-Mobile. Plan PricingSprint EssentialsSprint Essentials 55Line 1$65 ($60 after Auto Pay)$45 ($40 after Auto Pay)Line 2$35 ($30 after Auto Pay)$20 ($15 after Auto Pay)Lines 3–6$20/line ($15 after Auto Pay)Not AvailableSprint Unlimited Plans on T-Mobile – Best Buy www.bestbuy.com › Cell Phones › Sprint