Buy if You Want a Small Screen
While it is not an iPhone and there is no cellular component. the 2019 iPod Touch is the most powerful iOS device with a 4-inch display that you can buy.
If you want a device with a small screen for working out or carrying around with you while you listen to music, use apps, make FaceTime calls and send iMessages on WiFi, this is the device for you.
It features a 4-inch 1,136 x 640 resolution display at 326 pixels per inch. This small package also packs in a headphone jack that you won't find on a modern iPhone and it's reasonably priced.
Since there is no telling what is happening with the iPhone SE 2 at this point, the iPod Touch may be the best bet if you want a small screen iOS device for yourself or a family member.
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