The iPod touch is officially dead, but which iPod models are

Obsolete Apple products are devices that haven't been sold for seven years.
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Identify your iPod model - Apple Support

iPod - Wikipedia

iPod Nano - Wikipedia

Apple iPod sells out for the last time because it's still awesome

Used iPods Likely Not Worth Keeping as Collectors' Items Despite Uptick in Value After Discontinuation, Data Shows - MacRumors

The complete history of Apple's iPod - CNET

Restored iPod models are selling out at retailers after only a year of being discontinued

The iPod is officially dead - GadgetMatch

Apple confirms iPod nano and iPod shuffle have been discontinued - The Verge