The Samsung Galaxy Note 3 went on sale in Europe this week, but before you purchase one online and have it shipped to the United States, there’s something you need to know. It appears Samsung is region-locking the new device to prevent it from being used with international SIMs, so handsets sold in Europe will only work with European operators — even if you buy them unlocked.

When it comes to mobile gaming, the upcoming Google Nexus 5 could be one of the most impressive Android-powered smartphones to date. Leaked benchmarks that have surfaced online this week reveal the new device outperforms the Samsung Galaxy S4 and the HTC One in graphics performance, matching the new 64-bit iPhone 5s.

A somewhat concerning bug affecting a large number of Google Hangouts and Google Talk users is causing messages to be delivered to the wrong recipients. The problem, which appears to have started early this morning, is already being investigated by Google — but you may want to avoid using these services for the time being if you can.

Samsung’s Galaxy Gear smartwatch went on sale in Europe this week, but if you want to buy one, you’ll need a Galaxy Note 3 or the latest Galaxy Tab 10.1 to go with it, because they’re the only devices that currently support it. But you may not be surprised to hear that Samsung’s working hard to bring Galaxy Gear support to its latest flagship, too.

One company executive has revealed that the Galaxy S4 will be updated to support Galaxy Gear in October.

If you’ve got a thing for super-sized smartphones and you live in the U.K., you’ll be pleased to know you can now get your hands on the Samsung Galaxy Note 3. The device is now available from a number of carriers and smartphone retailers, as is Galaxy Gear, the companion smartwatch that brings apps and notifications to your wrist.