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Apple promised improved battery life for its new iPhone 5s and 5c, but other than endurance times for a few use cases, the company gave little info on the battery itself. Luckily, it's FCC's job to certify such aspects of a mobile device so now we have the actual battery capacity.

The iPhone 5, 5s and 5c batteries all work at 3.8V, but differ in battery size. The iPhone 5 had a 5.45Wh battery which works out to 1,440mAh. The iPhone 5c has a bigger, 5.73Wh battery or 1,507mAh and the iPhone 5s has the biggest battery of the three at 5.96Wh or 1,570mAh.

Apple unveiled the new iPhone 5s and iPhone 5c at a special event held at its headquarters in Cupertino. While the iPhone 5c did not live up to its promise of being a 'low-cost iPhone', the iPhone 5s showed off some promising innovations, like the new Apple A7 chip and, perhaps the highlight of the event, a built-in fingerprint scanner called Touch ID.

Touch ID can be used to unlock the phone, by simply placing a finger on the Home button. It can also be used to confirm purchases made on the App Store, iBookstore or the iTunes Store.

You can scan and add multiple fingerprints (e.g. left and right thumbs, as well as index fingers), including those from multiple people (e.g. your wife or kids), and Touch ID will authenticate based on any of stored prints.

In case you are worried about privacy, Apple assures that fingerprints are encrypted and stored in a secure area inside the new A7 chip. Fingerprints are not accessible to any third-party apps, and nor are they sent to Apple's servers or backed onto iCloud.

So what's the technology behind Apple's latest innovation? The Touch ID capacitive sensor embedded in the Home button scans your finger at 500ppi resolution to get a high resolution image of your finger. The sensor embedded in the Home button is just 170 microns thin.

The new Home button is made out of sapphire crystal, one of the "clearest, hardest" materials out there. The Home button protects the fingerprint sensor and also acts as a lens to precisely beam your fingerprint to the scanner. The Home button is surrounded by a steel ring, that can detect touches and tell Touch ID to start scanning when a finger is placed.

The sensor uses advanced capacitive touch to take high-resolution image of the sub-epidermal layers of your skin. The resultant image is then analysed, and grouped into one of three fingerprint types: Arch, Loop or Whorl. It then analyses ridges and other details too small for the human eye to see, to come up with a match for one of the stored fingerprints.

Update: Apple has reiterated that it stores only encrypted 'fingerprint data' obtained from the process detailed above and not the actual fingerprint image downplaying concerns of the iPhone 5s storing biometric data.

Apple also told WSJ that "customers who wish the use Touch ID also have to create a passcode as a backup. Only that passcode (not a finger) can unlock the phone if the phone is rebooted or hasn't been unlocked for 48 hours. This feature is meant to block hackers from stalling for time as they try to find a way to circumvent the fingerprint scanner."

It was just a few days back when Sony announced the Sony Xperia Z1 Honami device at the IFA 2013 event in Berlin, and there are already a lot of leaked details and specifications of the Sony Xperia Z2 device, which is codenamed Avatar and the model number C770X is said to be leaked through one of the sources close to the Sony team and the first detail that we had got to know was that the Xperia Z2 would have the 5.2 inch IGZO Triluminuous Display with a 500ppi pixel density, which could easily beat the 468PPI of the HTC One which is the current best in the market.

The Xperia Z2 is said to be having a Qualcomm Snapdragon 800 MSM8974 processor which would be bundled up with the 3GB of RAM, which only the Galaxy Note 3 has got as of now. The device would have the same camera which was introduced with the Xperia Z1, i.e. the 20.7 megapixel camera with the Sony G Lens and the 4K video recording, which should be again a feature inspired from the Note 3.

The Android 4.4 KitKat which was just announced by Google, is what would be coming in the Xperia Z2, and finally, a battery of 3200 mAh is coming in. There’s a lot of features that we have seen in the Note 3, but we cannot say that Sony is just taking the inspiration from there, because that’s the minimum a user would expect from the high-end smartphone if it has to stay in the race in the market.

According to some of the sources, Sony has already started working on the successor of the Z1, and it would take a couple months for them to get things done, so we can expect something from the company during the CES 2014 event, that is to happen in Las Vegas.

Keep checking for any updates, as once the leaks are out, things keep happening in a hurry and thus, there should be some more details available very soon.

Samsung has done dual-SIM versions of all its recent flagships and it appears the Galaxy Note 3 won't be an exception. In fact we just got a bunch of leaked photos of N9002 model which will be hitting China shortly.

The leaked photos reveal that the dual-SIM Samsung Galaxy Note 3 will be powered by the Snapdragon 800 chipset, featuring four 2.3GHz Krat 400 cores and the Adreno 330 GPU. The beast was even subjected to an AnTuTu benchmark and the score came at the pretty impressive 31,276. That's still a bit short of the score of the regular Galaxy Note 3, but since neither version has its firmware finalized just yet, it's too early to draw any conclusions.