Reddit mentions of SOKOO 22W 5V 2-Port USB Portable Foldable Solar Charger with High Efficiency Solar Panel, Reinforced and Waterproof, for Cell Phone, iPhone, Backpack and Outdoors (Black)

With current PV efficiency and the solar irradiance at Earth, it would take days to charge a kindle if not closer to a week. You'd need a panel 5-10 times larger than the kindle to get decent charge times, which you can buy for 30-50$ like this one https://www.amazon.com/SOKOO-Portable-Efficiency-Reinforced-Waterproof/dp/B01HJKJVG2 (first that came up, not endorsing it).

I have one identical to the linked one but from another company, they're decent for backpacking.

I mentioned what I would recommend, i was just vague with 2 of them.

it's more expensive, but it actually works, and can be used for other things.
(i have an all-in-one unit like you listed, its better with a lithium battery, but useless for anything but a low powered radio).

https://www.amazon.com/SOKOO-Portable-Efficiency-Reinforced-Waterproof/dp/B01HJKJVG2/ref=sr_1_2_sspa?ie=UTF8&qid=1505954608&sr=8-2-spons&keywords=solar+charger+usb&psc=1

this charges anything usb....

its better to charge a battery so you're not tethered to it.
any powerbank will work; https://www.amazon.com/Bonai-Portable-External-Flashlight-Smartphones/dp/B06Y58CXFZ/ref=sr_1_9?s=electronics&ie=UTF8&qid=1505954885&sr=1-9&keywords=usb+battery

This is the only one I specifically recommend, the rest "any" will do.
https://www.amazon.com/Motorola-Solutions-T480-Rechargeable-Preparedness/dp/B00W75BLTU/ref=sr_1_fkmr0_1?s=electronics&ie=UTF8&qid=1505954944&sr=1-1-fkmr0&keywords=moto+480+talkabout

this is a bit pricey.. buts its a 2 way radio, plus FM, weatherband, flashlight, water-resistant. lacks AM though.

but these are very nice, and can use rechargable batteries,, which could be charged with a USB AA battery charger. https://www.amazon.com/Sony-ICFP26-Portable-Radio-Black/dp/B012F0DGYE/ref=sr_1_3?s=electronics&ie=UTF8&qid=1505955010&sr=1-3&keywords=sony+am%2Ffm+radio

if you want to argue price... actually charge your phone with that Eton product, and then if you still want to depend upon it, ill concede.

If all you want is a hand crank radio, there are much cheaper models.

If you want a way to charge your phone when the power goes out, this won't do that very well with the cranking or the solar. Both produce such a small amount of power that you would be cranking for hours for a few percent of charge. The only way this charges a cell phone is if you pre charge it, and then it's just acting as a battery bank, but even then it doesn't hold much energy compared to other battery banks that are much cheaper and hold much more power. This thing holds about 2600mah, which is about enough to charge one cellphone once.

There are many battery banks out there that hold 10 times that (close to 30k mAh) for about $50, so if all you want is reserve power, thats your best bet.

Here is one for $50, decent brand, holds 26,800 mAh, enough to charge most smartphones several times over. There are lots of different sizes and prices, many which can power other things too like a laptop.

https://www.amazon.com/dp/B012NIQG5E

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If you want to be able to recharge a battery bank, you don't want to crank it, you want decent solar power. There are lots of larger panels that will charge your phone at full speed. (the one on the red cross one looks like half the size of a smartphone, just enough to run the radio probably).

Here is a 16w panel that folds up, can charge 2 devices at once, and pretty quickly with good sun. The review says it charges their iphone6 plus in 2 hours near noon, and similar time even in a window (still full sun though). Here it is: https://www.amazon.com/dp/B01HJKJVG2

Keep in mind again, there are tons of different models and brands. You can probably find a cheaper one with less wattage if you don't want to charge so quick, or more wattage if you want to fill up your power banks.

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I recommend buying a power bank, and a separate solar panel. You could hook up your solar panel to the power bank and fill it up for most of the day as long as there is light, and then you have a (mostly) full power bank to use to charge the various devices when it's dark or raining out.

If you think you could survive overnight with just one phone full of juice, maybe you could skip the battery, but when you have no power you get bored and probably would want to spend more time than normal on the phone, and probably want to charge other devices and family members devices too, so the battery bank makes sense.

If you want a radio, most phones probably do am/fm, if you want a weather radio, get one separate for a few bucks, it will probably include a flashlight and maybe even a crank for emergencies, but shouldn't cost anywhere near what this red cross one does.

Solar charger. Check this out: SOKOO 22W 5V 2-Port USB Portable Foldable Solar Charger with High E... https://www.amazon.com/dp/B01HJKJVG2/ref=cm_sw_r_sms_awdo_b0MYzb1Z477FW

Done & you're welcome.

www.amazon.com/gp/aw/d/B01HJKJVG2/ref=mp_s_a_1_1?ie=UTF8&qid=1523294201&sr=8-1&refinements=p_97%3A11292772011&dd=NahiFZLQ0RXKv4mfoisNqQ,,&pi=AC_SX236_SY340_FMwebp_QL65&keywords=solar+phone+charger&dpPl=1&dpID=51sYbfv4xUL&ref=plSrch

This is the solar panel

You can look around on Amazon for similar ones to the one I linked in my previous reply, for example this one:

https://www.amazon.com/SOKOO-Portable-Efficiency-Reinforced-Waterproof/dp/B01HJKJVG2/

There's some questionable reviews but, seems to have 4/5 stars so hopefully it'll be fine. Most of the bad reviews I saw were people complaining that it didn't work in the shade. (lol)

Found another slightly cheaper, but less reviews so it's more of a gamble:

https://www.amazon.com/GIARIDE-Portable-Foldable-Charger-Sunpower/dp/B0727X1ZPW/