T-Mobile pointed out today that most consumers in the states are holding on to their phones for a longer period of time before upgrading (the average is 3 years according to the carrier). As a result, many consumers have older phones unable to take advantage of the latest technological advances in network technology. In other words, these Americans are not enjoying the fastest 4G LTE data speeds available to them. And T-Mobile customers with a new iPhone supporting its 600MHz spectrum will have 792,000 square miles or 52% more LTE coverage than phones that don’t support the wireless provider’s low-band network. T-Mobile also notes that its customers already using a smartphone that supports 600MHz airwaves use 50% more data than customers using a phone without such support.

T-Mobile is teasing an “incredible iPhone offer coming” and promises to announce it soon. Meanwhile, T-Mobile customers can pre-order one of the new iPhone models or the Apple Watch Series 5 starting at 5 am PDT (8 am EDT) on Friday, September 13th. The devices will be available in T-Mobile and Metro by T-Mobile stores starting on September 20th. The seventh-generation iPad is expected in the stores on September 30th. Pricing will be announced shortly.