Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

When you tire of social media, you can flip your phone and dive into a good book using this distraction-free e-reader. When you tire of social media, you can flip your phone and dive into a good book ...

Xteink has launched the X4, a tiny e-reader that magnetically attaches to your phone. It skips premium features like a touchscreen and front light, but delivers true pocketability. The X4 is available ...

You can always tell when a tech company pays attention to what people want. The Insta360 X4 Air is that rare camera that feels like it was built by listening first, engineering second. After years of ...

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