Very small and light player that you can clip to your clothes and go for a run. However, the internal memory tops at about 500 songs.
SpecsUpdate
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Pros
Pro Voiceover reads the song information to you
Voiceover function tells you the title of the song or the name of the artist with a push of a button. It is available in 29 languages.
Pro Clip to firmly attach player to your clothes
There is a clip on the back of the player that you can use to securely fasten it to your pocket, shirt, or wristband. This prevents it from falling out during exercise.
Pro Extremely compact design
At 0.3 x 1.2 x 1.1 inches big and 0.44 ounces heavy, this player will be almost unnoticeable in your pocket.
Pro Durable design
It doesn't break when you drop it on the floor and there is no screen to scratch or shatter.
Cons
Con Comparatively short battery life
The 15 hours of audio playback falls short when compared to most other players on the market that provide at least 25 hours of music.
Con Discontinued
Apple has discontinued iPod Nano and Shuffle. Source: https://arstechnica.com/gadgets/2017/07/apple-discontinues-ipod-nano-and-shuffle-updates-ipod-touch-models/
Con Limited storage space
The internal memory tops out at 2 GB of storage, or about 500 songs. As with other Apple products, there is no microSD slot or other expendable memory options.
Con Limited choice of media
You are limited to your iTunes playlists. No Spotify or radio.
Con There are no apps
This device has no other functions than playing music. So if it's important for you to be able to set an alarm or timer, look for a different player.