Briefly: Fitbit Charge Details, Google Inbox Hacks, Cheap Nexus 5

Brief news items of note for Lifehacker readers, including: Introducing the new Fitbit Charge range, seven tips to unlock the potential of Google Inbox, get the Nexus 5 smartphone for $409.

Find Battery-Saving Tips For Almost Any Phone Model With This Index

Smartphone battery life is getting better with each generation, but there’s still plenty of things you can do to help keep your pocket-dwelling life assistant alive. This comprehensive index includes a wide range of battery-saving tips for models from Apple, Samsung, Blackberry, HTC, Huawei, LG, Motorola, Sony, Nokia, and even Amazon.

Briefly: Samsung Galaxy Note 4 Review, Free Online Courses, How To Lose Belly Fat

Brief news items of note for Lifehacker readers, including: Get $250 worth or Udemy online courses for free, Samsung Galaxy Note 4 reviewed, the science of losing belly fat.

Optus Is Now Selling The BlackBerry Passport In Australia

BlackBerry’s unconventional new smartphone — the keyboard-equipped, square-screened Passport — has just launched on the Optus network in Australia. The device is available on a range of 24-month plans and can also be purchased outright. Here’s a look at the pricing and specifications.

Dealhacker: Make Free International Calls On Vodafone This Weekend

Do you have a few far-flung relatives around the globe that you haven’t been in touch with for a while? If you’re a Vodafone customer, you can make free international calls this weekend in a bid to lessen your guilt. (The catch is that only 10 overseas locations are covered.)

Smartphone Assistants Go Head To Head, Google Now Comes Out On Top

With three major smartphone AIs giving out answers, it’s hard to say which one is the best. In a study that asked all three major AIs over 3000 different queries, Google Now came out on top.

How Predictive Keyboards Work (And How You Can Train Yours Better)

Many people now have a predictive keyboard on their smartphones that suggests upcoming words for super-fast typing. But they’re not perfect, and they sometimes turn up hilarious results. Luckily, it’s not hard to train your keyboard to understand you.

Grab A Refurbished 32GB HTC One M7 For $US244 (With A Few Provisos)

Good smartphones don’t come cheap, with high-end models easily setting you back $600 or more. If you don’t mind having a slightly older device, bargains can be found on the likes of eBay for superseded models. Take this deal for a refurbished HTC One M7, complete with 32GB of storage, 1080p screen, 1.7GHz processor and 2GB RAM for $280.

Hands-On With Globalgig's Roaming SIM Card

Over the past two years, Globalgig has swiftly become the go-to MVNO for cheap mobile broadband while travelling abroad. Originally only offering Wi-Fi hotspots, the service now provides SIM-only packages that are compatible with a wide range of tablets and smartphones in 40 countries (and counting). We recently tested Globalgig’s Home & Abroad pack during a sight-seeing tour of London. Read on for our hands-on verdict.

Remote Play Stress-Test: We Play Destiny On A Smartphone

Remote Play is a mobile app compatible with the PlayStation 4 that lets you play your games on a mobile device instead of your television. We tried the feature out on a Sony Xperia Z3 smartphone while playing the first-person shooter Destiny. Can a 3D video game designed for consoles possibly work on a five-inch screen? Let’s find out…