Someone spotted a China-bound version of the alleged Samsung Galaxy S4 with its back laid bare, revealing two juicy secrets along the way: Dual SIM functionality as well as a 2,600mAh battery that has built-in NFC support.

Well, this could imply that the international or global version of the Galaxy S4 could or could not carry a similar NFC-enabled battery, although by all means and purposes, we should see the Galaxy S4, regardless of region, run on a 2,600mAh battery. As you can see in the image above, the battery within the GT-I9502 would be one of 9.88Wh (watt-hour), and after some mathematical calculation, it is rated at 2,600mAh. This is definitely an “upgrade” compared to the 2,100mAh battery that sees action on the current Samsung flagship, the Galaxy S3, but that is to be expected since the Galaxy S4 will come with more features and functionality than its predecessor. 

We do wonder what kind of Galaxy S4 does Jeremy carry around in his box, but all will be revealed in a couple of days’ time when we are on the ground covering the Galaxy S4’s announcement, so stay tuned! Too bad the teaser pic of the Galaxy S4 failed to show its back.