Digital radios can hold on to a signal longer, so often offer better coverage. Their channel capacity if double that of analogue radios and they have better voice clarity and noise reduction capabilities and the battery life can also be extended up to 30%. Digital provides many advanced features as standard, such as one to many, one to one, text messaging, emergency caller and remote interrogation.
Analogue radios are made by a wider variety of manufacturers, and there are a lot more accessories available. Analogue provides a more natural voice sound and can also be engineered to provide most of the features available as standard in digital radios.