The touchscreen technology has revolutionized the way we use mobile phones and electronic devices. The invention of the first touchscreen phone has paved the way for modern smartphones, tablets, and other smart devices that have become an indispensable part of our daily lives.

Touchscreen technology is a method of interacting with electronic devices and computers by tapping, swiping or touching their screens instead of using physical buttons or keyboards. This allows users to interact with their devices intuitively while also simplifying user interfaces.

The concept of touchscreens has been around since the 1960s when E.A Johnson developed his first touch sensor at Royal Radar Establishment in England. However, it was not until much later that this technology found its way into consumer electronics like mobile phones.

The history of the touchscreen phone can be traced back to IBM’s Simon Personal Communicator, which is widely considered to be one of the first smartphones ever produced. The device was launched on November 23rd, 1993. Developed jointly by IBM and BellSouth Cellular Corporation (now known as AT&T), this device featured a monochrome LCD screen measuring 4.5 inches diagonally but only displayed graphics in black-and-white.

However, even though it had some advanced features for its time such as note-taking functionality and fax capability, what made Simon truly remarkable was its ability to recognize handwriting via a stylus-operated interface rather than relying solely on hardware buttons.

Simon incorporated two touchscreen technologies – capacitive touch sensing (for finger input) and resistive touch sensing (for stylus input). Capacitive sensors were used because they could detect electrical properties present on human skin whereas resistive sensors needed pressure sensitive surfaces upon which multiple layers required precise alignment that led to increased production costs; coupled with poorer response time relatively low resolution; making them less ideal for your average consumer platform despite being preferred for industrial applications requiring durability over sensitivity

Despite these capabilities shown by Simon’s Hybrid Resistive/Capacitive Touch System, it had a number of shortcomings that limited its commercial viability. Some of them included the device’s bulky size and high cost which made it unaffordable for most consumers, as well as the lack of wireless data connectivity.

Simon was discontinued in 1995 with only around 50,000 units being sold thanks to its hefty price tag of $899 plus an additional monthly service fee. It would take another decade before mobile phone manufacturers would successfully integrate this technology into their devices.

The first commercially successful touchscreen phone came from Japanese electronics giant Fujitsu in June 2001. The FOMA F801i was a flip-phone equipped with a resistive touchscreen display measuring just two inches across diagonally – noticeably smaller than Simon’s screen. This significant decrease in size contributed significantly to bringing down the production costs and making these phones more affordable.

But while it may have been slightly more accessible than Simon, FOMA still suffered from some critical limitations which hindered its widespread adoption by consumers. First on the list is limited durability and relatively low sensitivity; both affecting response time images’ resolution (it could display only grayscale photos). Secondarily compromised usability due to user skeuomorphisms such bezels covering portion screens or sliding parts obscuring swiping areas often causing frustration on everyday use

Apple Inc launched iPhone On June 28th 2007 featuring a large capacitive glass-touchscreen that responded to finger touch alone making it effortless to interact with applications like never before without stylus or keyboard buttons limiting innovation possibilities even further coupled with built-in Wi-Fi capability transforming once-a-cell-phone into life companion capable sharing real-time information web content multimedia social media integration etcetera amongst many others yet unseen at Sony Ericsson W950i Sonoma XPERIA .What followed next were years upon years worth competition-driven creativity shaping how we use cell phones today breaking all known handheld barriers ever erected let you surf the Internet, make video calls play games listen to music write emails share photos and do much more that was previously thought impossible.

In conclusion, Simon by IBM was the first phone incorporating resistance and capacitive touch-screen technology but due to high production costs only a few people bought it. So Fujitsu’s FOMA may have been the first affordable touchscreen phone though its tiny size limited appeal; Apple Inc.’s iPhone which was introduced in 2007, remains the most groundbreaking commercial smartphone yet creating a genuine revolution on handheld devices’ computing potential which has set standards for smartphones industry-wise since then.