Apple iPhone

Launched by none other than the late Steve Jobs in 2007, the Apple iPhone ushered in a new era in the realm of mobile phones.
.

The all-touch device vowed the world with its futuristic (for that time) features like on-screen keyboard, quad-band GSM support and a gamut of sensors like accelerometer, proximity sensor and ambient light sensor. And even though it lacked the App Store when it launched, the iPhone paved the way for modern-day smartphones. The rest, is history.