I'm in a Lions club and dabble in IT for the visually impaired.
If you want your smart phone to make a difference in the world, put some apps on the phone, connect to a TV, set it up and help a visually impaired child or adult who struggles to read their mail or a book. Best of all, it's free. Visually impaired people are the most financially strapped people you will meet.
A smart phone with a camera that can be attached to a television works much better than magnifying glasses. Besides zooming in and out, smart phones have accessibility options that can change contrast, colors, and other useful functions that work very well for the visually impaired.
Without cell or wireless you can sometimes manually install apps that are helpful. Unfortunately some apps I really like will not function without service.
My experience is droid (hdmi capable). Not sure about discarded iPhones but somebody else probably has experience with that.
You can do this in any community, anywhere in the world. You are guaranteed an endless supply of old smart phones and a lot of appreciative people.
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