Some of the new handsets have a lot bigger batteries but the most interesting change we noted lately was how we connect to the networks.
EE is to begin switching some of its customers to wi-fi enabled calls to help combat mobile signal dead spots.
The UK network suggests the move will particularly benefit people who fail to get a connection or experience dropped calls in their homes and offices.
Other firms already offer a similar service via apps, but EE says its scheme is "seamless" as users are not required to do anything to switch between 3G/4G and wi-fi.
Potential pitfalls. - EE said its Wi-fi Calling facility would initially be limited to pay monthly subscribers using Samsung's Galaxy S6 and S5 phones and Microsoft's new Lumia 640, and the iPhone 5S and newer Apple handsets will also be supported.
Since it requires specific mobile data components to be built into the devices, it cannot be extended to other older models. However, EE said it would soon offer a compatible own-brand budget smartphone.
To join the service, users send the firm a single text message.