The Snapdragon 820 was announced at the Mobile World Congress in March 2015, with the first phones featuring the SoC released in early 2016. The Snapdragon 821 was announced in July 2016. The 821 provides a 10% improvement in performance over the 820 due to a faster clocked CPU, but otherwise has similar features, with Qualcomm stating that the 821 is designed to complement rather than replace the 820.

Notable features over the Snapdragon 808 and 810:

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