Fast web page loading on a $20 feature phone

Tip: Building a fast, core foundation for your site gives everyone a good experience; whether they're on a low-cost feature phone or the latest high-end smart phone.

Introduction

Feature phones are affordable (under $20-25), low-end devices enabling 100s of millions of users in developing countries to leverage the web. Think of them as a light version of a smart phone.

Being low-cost, feature phones tend to have slower CPUs (think 6x slower than a high-end smart phone), low RAM (e.g 256MB-512MB, typically under 4GB), low storage (4G) and often don't have a touchscreen. Instead they use a keypad or D-Pad for navigation. Something like this: