Screenshot of a typical Nokia S60 user interface.
The S60 Platform (formerly Series 60 User Interface) is a software platform for mobile phones that runs on Symbian OS. S60 was among the most- advanced smartphone platforms in the world but was outdated by the proliferation of the touch screen user interface, particularly the success of
iPhone (later named iOS) and Android systems. It was created by Nokia, who made the platform open source and contributed it to the Symbian Foundation. S60 has been used by mobile device manufacturers including Siemens mobile, Lenovo, LG Electronics, Panasonic and Samsung. Sony co- created the software with Nokia. Symbian (all Symbian products) is the most
popular smartphone OS on the market by 37.6% of the sector’s total sales, with 111.6m handsets sold in year 2010. In addition to the manufacturers the community includes: Software integration companies such as Sasken, Elektrobit, Teleca, Digia, Mobica, Atelier.tm Semiconductor companies Texas Instruments, STMicroelectronics, Broadcom, Sony, Freescale Semiconductor, Samsung Electronics Operators such as Vodafone and Orange who develop and provide S60- based mobile applications and services Software developers and independent software vendors (ISVs). S60 consists of a suite of libraries and standard applications, such as
telephony, personal information manager (PIM) tools, and Helix-based multimedia players. It is intended to power fully featured modern phones with large colour screens, which are commonly known as smartphones. The S60 software is a multivendor standard for smartphones that supports application development in Java MIDP, C++, Python and Adobe Flash. Originally, the most distinguishing feature of S60 phones was that they
allowed users to install new applications after purchase. Unlike a standard
desktop platform, however, the built-in apps are rarely upgraded by the
vendor beyond bug fixes. New features are only added to phones while
they are being developed rather than after public release. Certain buttons
are standardized, such as a menu key, a four way joystick or d-pad, left and right soft keys and a clear key. S60 editions S60 5th edition idle screen. Bottom left “button” brings up a virtual number pad, to compensate for removal of actual numerical keys. There have been four major releases of S60: “Series 60” (2001), “Series 60
Second Edition” (2003), “S60 3rd Edition” (2005) and “S60 5th Edition” (2008). S60 1st Edition In Series 60 1st Edition, the devices’ display resolution was fixed to 176×208. S60 2nd Edition Since 2nd Edition Feature Pack 3, Series 60 supports multiple resolutions, i.e.
Basic (176×208), and Double (352×416). Nokia N90 was the first S60 device to support a higher resolution (352×416). Some devices, however, have non-
standard resolutions, like the Siemens SX1, with 176×220. Nokia 5500 Sport has a 208×208 screen resolution, and the Nokia E90 with its wide 800×352 inner display. S60 3rd Edition (S60v3) uses a hardened version of Symbian OS (v9.1), which has mandatory code signing. In S60v3, a user may install only programs that have a certificate from a registered developer, unless the user disables that feature
or modify the phone’s firmware through third-party hacks that circumvent
the mandatory signing restrictions. This makes software written for S60 1st
Edition or 2nd Edition not binary-compatible with S60v3.
In 2006, a “Designed for S60 Devices” logo program for developers was
launched. The logotype can be used with conforming programs (Symbian or Java) S60 5th Edition In October 2008, S60 5th Edition was launched. (Nokia decided to move from 3rd Edition directly to 5th Edition “as a polite gesture to Asian customers”, because the number four means bad luck in some Asian cultures). S60 5th Edition runs on Symbian OS version 9.4. The major feature of 5th Edition is support for high-resolution 640×360 touchscreens; before 5th Edition, all S60
devices had a button-based user interface. S60 5th Edition also integrates
standard C/C++ APIs and includes Adobe Flash Lite 3.0 with S60-specific
ActionScript extensions that give Flash Lite developers access to phone
features like contacts, text messaging, sensors and device location
information (GPS). The S60 5th Edition is the last edition of S60. Its assets along with Symbian OS, UIQ and MOAP(S) have been used as a base for Symbian, an open source operating system being developed by the Symbian Foundation. The first edition of Symbian, Symbian^1, uses S60 5th Edition on top of Symbian OS 9.4 as its base. S60 versions and supported devices Many devices are capable of running the S60 software platform with the Symbian OS. Devices ranging from the early Nokia 7650 running S60 v0.9 on Symbian OS v6.1, to the latest Samsung i8910 Omnia HD running S60 v5.0 on Symbian OS v9.4.  In Symbian^3 the version of the revised platform is v5.2. The table lists devices carrying each version of S60 as well as the Symbian OS version it is based on.