The 6820 was the most popular phone in the series and was often stocked in shops when it was released in early 2004. This phone was smaller than the previous models; as a result, the keys were much smaller and had practically no space between them. A variant known as the 6820b was marketed in North America with support for the 850MHz GSM band instead of the 900MHz band used by the regular 6820. The 6820 was functionally identical to the 6810 except it had a 352x288 camera instead of the built-in radio.
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