According to the report released yesterday by the market research firm CyberMedia Research (CMR), 64 percent of Android smartphones shipped in India in 2015 featured the ageing Android KitKat OS, which is nearly three years old.

The study was conducted across 158 different smartphone brands and covered 1,476 device models.

"With increase in commoditisation of hardware features owing to competitive pressures, Smartphone vendors will need to start focusing on creating differentiation through user experience enabled by OS and software features," said Faisal Kawoosa, lead analyst (telecoms) CMR.

"Typically, a consumer nowadays needs to purchase a premium-priced smartphone to access the latest Android OS or software-enabled features," he added.

The key reason for the delay in sending updates to existing Android smartphones is that handset vendors prefer to launch new models, rather than focus on updating existing ones to provide a consistent user experience.