Image links below take you to individual retailers' websites:

It's difficult these days to distinguish between mobile phones, PDAs and smartphones, as all the latest gadgets do so much.

Like 'em or loathe 'em, they have their uses, whether a basic model that only does phone calls, or one that accesses the Internet (handy for rail enquiries) and handles emails. Good for taking snaps too if you haven't got your camera along. In fact some are pretty good cameras themselves.

Music phones, camera phones, business phones, fashion phones, rugged phones - contract and pre-pay - brands include:

• LG
• Motorola
• Nokia
• Samsung
• Sharp
• Siemens
• Sony Ericsson

were originally a personal digital assistant i.e. a little computer to fit in your pocket and synchronised with your desk computer. They mean you are always equipped with the info you need to carry around with you.

The first ones were used with a stylus and touchscreen but now they've grown up into smartphones complete with a keypad for dialling and texting.

Brands include:

• Apple iPhone
• Blackberry
• HTC
• i-Mate
• Gigabyte
• Nokia
• O2 XDA IQ
• Samsung
• Wildcharge Blackberry - wireless charging technology

Essential items for calling at home or abroad, with pre-pay cards from all the big names (T-mobile, O2, Virgin, Vodafone, Orange) plus a few more, and Lebara and others designed for international calls.

Antennae, skins, shells, guards, cases, cards, cables, earbuds, headphones, speakerphones, speakers, cradles, replacement screens, bluetooth adaptors, solar chargers...it's all available.