Mobile phone owners have been told to keep their personal security in mind when they are out and about.
According to the Metropolitan Police, people living in London can take various steps to reduce the likelihood of being targeted by street robbers.
For instance, it suggested that consumers be conscious of where and when they use their mobile phones in public.
The force noted that the majority of robberies occur at places such as train stations, as people check their handset in a crowded environment and are not paying attention to their surroundings.
In addition, it said people who have been drinking alcohol are also especially vulnerable to thieves.
Simon Pountain, a commander at the Metropolitan Police, commented: "When you are out, where possible try to keep any valuables hidden.
"Smartphones and media players are becoming must-have items for many people - that includes criminals."
Mr Pountain insisted that the police takes street robbery very seriously, but said members of the public can help themselves to avoid falling victim to this crime.
The force has launched a campaign to remind consumers to be vigilant when they are out in London, partly because many will have received new smartphones and other electronic gadgets as Christmas presents.
Mr Pountain added that the Met is determined to do all it can to tackle street robbery and bring those responsible to justice.
This comes after research by Lloyds TSB found that nearly 90 per cent of mobile phone owners do not have their handset insured.
The firm described this statistic as alarming, as one in three people have either damaged or lost their phone, or had it taken by thieves.
Figures from Lloyds TSB also indicate that three-quarters of Britons do far more than make calls on their handset, as many make use of functions such as the alarm clock, internet browser and camera.