Weekends with Engadget: the Moto E, futuristic Army helmets and more!

Welcome to Weekends with Engadget, a quick peek back at the top headlines from the past seven days -- all handpicked by the editors here at the site. For even more action, subscribe to our Flipboard magazine!

What you need to know about smart guns

Nowadays, guns can shoot around corners, aim themselves and even use an iPhone as a scope. But what classifies such weapons as "smart?" Read on as our own Terrence O'Brien discusses the tech and implications surrounding the world's smartest firearms.

Twitter shuts up your annoying friends with Mute

This week, Twitter announced a new feature that lets you temporarily mute annoying people in your feed, rather than unfollow them. Don't worry, you can unmute them again once they've stopped ranting.

Motorola launches the $129 Moto E, a durable and affordable Android smartphone

If there's one thing Motorola knows how to do, it's how to get the best from mediocre components. The company's new Moto E is durable, water-resistant and has only slightly weaker specs than the Moto G. And the best part is that it costs just $129.

Future Army helmets make for cooler soldiers, terrified enemies

What you're looking at is not a mask from Halo, it's part of the US Army's new "soldier of the future" concept. As of now, the helmet is just a render, but this design could one day protect our forces from heat, humidity and even chemical agents.

Russia threatens to disrupt GPS navigation in fight over sanctions

This week, the Russian government threatened to end cooperation with America on maintaining the GPS network, unless the US promises to house stations supporting the competing GLONASS. Gee, thanks Putin.

How a water bottle gave birth to a whole new world of self-healing products

Sometimes great things happen by accident. Read on and learn how a Dasani water bottle and laboratory error lead an IBM researcher to develop the tech behind a self-healing and flexible polymer.

Wearhaus: If you love your social headphones, set them free

Social headphones you say? A company called Wearhaus wants to empower over-ears with the ability to wirelessly share music with anyone. Our own James Trew loves the idea, but fears it won't catch on.

'Halo 5: Guardians' and live-action Halo TV show set for fall 2015 launch

We knew a Halo 4 successor was coming, but this week, Microsoft and 343 Industries announced that Halo 5: Guardians will arrive fall of 2015. What's more, the live-action Halo TV series may debut around the same time. And now, we wait.

A PC component maker in a post-PC world

Creative Labs has deep roots in the PC market. But as our world becomes increasing mobile, how does such a company adapt? Well, the audio specialist's betting on its new $200 Bluetooth speaker, the Sound Blaster Roar.

What you need to know about online advertisers tracking you

No one enjoys the thought of having their online routines tracked by advertisers, but is there really anything you can do about it? Read on as our own Jose Andrade dives into the Do Not Track (DNT) initiative and how it can protect you.