The latest research on mobile performance from Opensignal studied the period between September and December 2022 on US cellular networks. Looking at the top three networks by subscribers (AT&T, T-Mobile, and Verizon), service was measured in categories such as consistency, download speed, and coverage using billions of measurements.
Making sure an iPhone is unlocked when buying or selling a used device can make or break the sale. It's important that the iPhone is unlocked, so that any compatible SIM card can be used. When an iPhone is locked to one cellular carrier, it cannot be used on another network. Once a device is out-of-contract carriers must unlock it when requested to do so. Many iPhones are sold unlocked, and thanks to iOS 14 there's an easy way to verify if a device is unlocked.
Most of the time iPhone owners forget there's a SIM card inside their devices. But when it becomes necessary to switch SIM cards, such as while traveling, Apple has made it simple to access. Older devices, namely the original iPhone, iPhone 3G and iPhone 3GS have SIM cards located on the top. Every other iPhone's SIM card is placed on the right hand side of the device.
iPhone users looking to sign up for an unlimited cellular data plan have two more options this week. AT&T Mobility plans to start two additional new plans on Thursday, dubbed Unlimited Plus and Unlimited Choice. The announcement comes just days after AT&T first joined the other major US carriers in offering unlimited data to smartphone customers.
After years of moving away from unlimited data plans, the wireless industry has done an about-face. iPhone owners now have several unlimited options from major carriers including AT&T Mobility, Verizon Wireless, T-Mobile and Sprint. Data plans with no hard limit have proliferated over the past year, as carriers fight tooth and nail for data-hungry smartphone subscribers. Here are some highlights of the latest and greatest unlimited data plans for iPhone.