<P> On March 31, 2017, the iPhone 6S and 6S Plus were released in Indonesia alongside the iPhone 7 and 7 Plus, following Apple's research and development investment in the country . </P> <P> The iPhone 6S is nearly identical in design to the iPhone 6 . In response to the "bendgate" design flaws of the previous model, changes were made to improve the durability of the chassis: the 6S was constructed from a stronger, 7000 series aluminum alloy, "key points" in the rear casing were strengthened, and touchscreen Integrated circuits were re-located to the display assembly . Alongside the existing gold, silver, and space gray options, a new rose gold color option was also introduced . </P> <P> The iPhone 6S is powered by the Apple A9 system - on - chip, which the company stated is up to 70% faster than Apple A8, and has up to 90% better graphics performance . The iPhone 6S has 2 GB of RAM, more than any previous iPhone, and also supports LTE Advanced . The Touch ID sensor on the 6S was also updated, with the new version having improved fingerprint scanning performance over the previous version . </P> <P> While the capacities of their batteries are slightly smaller, Apple rates iPhone 6S and 6S Plus as having the same average battery life as their respective predecessors . The A9 system - on - chip was dual - sourced from TSMC and Samsung . Although it was speculated that the Samsung version had worse battery performance than the TSMC version, multiple independent tests have shown there is no appreciable difference between the two chips . Although the device is not promoted as such, the iPhone 6S has a degree of water resistance because of a change to its internal design, which places a silicone seal around components of the logic board to prevent them from being shorted by accidental exposure to water . </P>

How many gb ram does iphone 6s have