After hinting about it for months, Google on Wednesday finally unveiled its Project Fi low-price wireless service. The service debuted two months after an announcement from Google saying that it would begin providing wireless connections to smartphones. The cost of the service is $20 per month, which covers talk, text, Wi-Fi tethering, and international coverage in more than 120 countries.

Project Fi will also only charge users for the actual data  they use instead rather than a flat rate. The rate for that data will be $10 per gigabyte. If a customer signs up for a 3-gigabyte plan but uses only 1 gigabyte during a month, the user will get a refund of $20 at the end of the month. That contrasts with the policies of most wireless phone service providers that allow users to carry forward their unused data but don't offer refunds.

Nexus Only

At first, Project Fi will be available only to owners of the Nexus 6 device that Google developed in partnership with Motorola Mobility. Users can buy Nexus 6 smartphones to use with Project Fi directly from Google when they sign up for the service. The midnight blue Nexus 6 is available in two storage  sizes: 32 GB for $649 and 64 GB for $699.

The Nexus 6 purchase comes with a payment plan for those who would rather not pay the full cost up front. Users can pay over 24 months at $27.04 per month for the 32 GB option or $29.12 per month for the 64 GB option, with no interest or fees. However, a credit check is required to be eligible for this pricing.

"Similar to our Nexus hardware program, Project Fi enables us to work in close partnership with leading carriers, hardware makers, and all of you to push the boundaries of what's possible," said Nick Fox, Google VP of communications products, on the company’s blog. "By designing across hardware, software  and connectivity, we can more fully explore new ways for people to connect and communicate."

Besides lowering prices for data, Google also said its Nexus devices will connect to the fastest network  available. Rather than building its own network, Google is leasing out tower space from companies like Sprint and T-Mobile, and it says Project Fi will automatically switch over to a Wi-Fi network if it is running at a higher speed than what’s available on cellular networks.

Early Access

Google said that with Project Fi, users’ phone numbers live in thecloud , so they can talk and text with those numbers on virtually any phone, tablet or laptop -- meaning that if a user’s phone gets misplaced, the connection can be maintained via another screen.

Google has initiated a Project Fi Early Access Program to invite people to sign up for the service. Customers who live where the program has coverage in the United States can request an invite at fi.google.com.

Less Apps Less Battery Consumption:

The lower number of apps installed on your Android device the more battery you can dig out from it. This is probably the best way to save a lot of battery. Dump all unnecessary apps that you had installed once but never used them again – remove them immediately.
Installing Battery Saving Apps:

These battery saving apps have profiles or modes in which that they can toggle Wi-Fi, GPS, Mobile data, Sync etc. They automatically turns on and off such things that drains battery. You can easily find these battery saving apps on Play Store.

Use task killing apps on your android:

There are some automatic task killers and some are manual. You can even set regular task kills. The more memory you have the more fast and responsive your device would be and would save battery life.

Select 2G in Network Mode:

Go in to settings/Wireless and networks/Mobile networks/Network mode and choose GSM only in Network mode. Because in Pakistan we only have GSM  — though we are desperately waiting for 3G but until then — changing such settings would also increase battery life.

Enable Sync or Uploading Only Through Wi-Fi:

Sync files or download large files through Wi-Fi only because this way such operations will take lesser time and hence lesser battery consumption.

Here are other parts that you should keep in mind to save the battery.

Disable Wi-Fi when not needed, Disable GPS when not needed, Disable Mobile data when not needed, Delete Unnecessary Widgets, Use Lower Brightness and Screen Timeout,  and the most important thing is Keep Your Device Cool.

Despite rumours of a metal build, LG has gone for genuine leather instead which is unusual as a main option (you can choose it for the Moto X but it's a premium extra). The leather feels nice with the stitching so it's preferable to faux leather as found on some Samsung devices but some colours aren't great such as yellow and sky blue. Although the leather is vegetable tanned and LG says the colour will change over time.

If the idea of leather puts you off the LG G4 straight away then don't worry because there is a ceramic option too which has a smooth diamond texture and comes in three colours: Metallic Gray, Ceramic White and Shiny Gold. However, this feels pretty plasticky especially the white model with LG confirming the polycarbonate is only 5 percent ceramic. You'll need to pay around £25 extra for the leather.

That cover is still removable giving you access to the battery and microSD card slot which is good to see. What we don't know is how the leather will wear over time so we hope we can have a sample long enough to see what happens.

The LG G4 looks pretty similar to the G3 apart from the switch to leather and ceramic. However, it's a shame that like the HTC One M9, the firm hasn't managed to slim it down. It's heavier at 155g and thicker at 9.8mm which isn't ideal. We were also hoping for the phone to be thinner on the width as the G3 is a tad difficult to use in this sense but the G4 is actually taller and wider at 76 x 149.9mm.

LG uses a Slim Arc curved shape which makes it comfortable to hold and supposedly makes it 20 percent more durable than a flat smartphone in face-down drops.

We knew a lot about the LG G4 prior to the launch, partly thanks to LG and partly the usual leaks online.

The firm has stuck with a 5.5in screen size and a Quad HD resolution (1440 x 2560) so it's the same as the LG G3 and offers a high pixel density of 538ppi. It's not the same panel though as LG has fitted its new IPS Quantum Display which is says has 20 percent greater colour reproduction, 25 percent improvement in brightness and 50 percent greater contrast.

It's not a huge leap from the G3 but that display is hard to follow and was the first Quad HD phone to market. Once again, we think the LG G4's screen is top quality so it's really the size which is more of an issue here as 5.5in will be too large for some users.

Which processor LG would opt for was something we had to wait to find out and it's not the Qualcomm Snapdragon 810 (as used in the LG G Flex 2) or the firm's own Nuclun processor. Instead the LG G4 has a Snapdragon 808 making it the first device we've seen with the chip. The reason is unknown but suspected to be behind the overheating issues of the 810.

The Snapdragon 808 is a six-core processor rather than octa-core offering dual-core ARM Cortex A57 and quad-core A53 with 64-bit support. It also has an Adreno 418 GPU which supports 3D gaming on 4K displays and X10 LTE which has integrated LTE Advanced for download speeds of up to 450Mbps.

LG says it has worked with Qualcomm on the 808 touting is as 'snappy yet energy-thrifty'. It claims the change means an extra 20 percent battery life compared to the G3 despite having the same battery capacity.

The LG G4 seems nippy after some hands-on time but as usual we'll have to spend a lot longer with it and get it into the lab before we can give you a final verdict on performance.

LG has simplified things when it comes to memory and storage with a flat 3GB of RAM and 32GB of storage matching rivals. There is, however, that microSD card slot which many were annoyed to see dropped on the Galaxy S6 so you can bump things up if you need to.

A major feature which LG has been pushing since before the launch event is the camera which is confirmed would have an aperture of f/1.9 – narrowly beating the Galaxy S6 by 0.1. We now know the main camera is 16Mp, up from 13Mp, and has OIS 2.0 (optical image stabilisation).

It is, as usual, very difficult to test the camera out properly at the launch event but it looks promising. We will, of course, put it through its paces when we get a review sample.

What we like already is the addition of the Manual Mode which lets you start controlling the settings yourself –fun to try even if you're not into photography. You can tweak the shutter speed, ISO, exposure compensation, white balance and use manual focus. You can even shoot in RAW if you like and selfie fans can use the new Gesture Interval Shot feature to take a series of four selfies.

The G4 has the kind of wireless you'd expect from a top-end phone with 11ac Wi-Fi, Bluetooth 4.1 LE and NFC. This does mean that LG hasn't added features you can find elsewhere such as a fingerprint scanner and heart rate monitor. The IR blaster remains from the G3 but you'll need to buy the Quick Circle case to use wireless charging which is a shame as it was a standard feature of the G3.

The LG G4 comes pre-loaded with the latest version of Android, 5.1 Lollipop and the firm's new UX 4.0 interface which it teased before the launch. It looks similar to the G3's user interface as you'd expect and still has existing features such as Smart Bulletin and Smart Notice but there are some new features.

We've already mentioned the new Manual Mode and Gesture Interval Shot above while talking about the camera but there's another which is related called Quick Shot. It simply means you can double tap the Rear Key to take photos, even with the screen off – you might need to do some cropping but it should mean you don't miss moments.

There's also an improved Gallery app and a new feature called Event Pocket allows you to create a unified calendar by dragging and dropping appointments and activities from multiple calendars and social media sites.

It's also worth noting that the LG G4 comes pre-installed with Google Office and G4 owners will receive an additional 100GB of Google Drive storage free for two years which is a lot of extra space. LG also said VW owners will be able to "view a car-friendly version of the G4 interface on the in-dash display for full integration with contacts, navigation and music on the smartphone."