Why don't smartphones have a built-in solar charger? There is plenty of surface area on the back of the phone and even the screen itself could be used. - Quora
![Apple and Samsung plan solar panels for smartphones, tablets - Discovery | siliconrepublic.com - Ireland's Technology News Service Apple and Samsung plan solar panels for smartphones, tablets - Discovery | siliconrepublic.com - Ireland's Technology News Service](https://www.siliconrepublic.com/wp-content/uploads/2014/12/201107/blue-earth2.jpg)
Apple and Samsung plan solar panels for smartphones, tablets - Discovery | siliconrepublic.com - Ireland's Technology News Service
![20W Outdoor Foldable Solar Panels Cell 5V USB Portable Solar Smartphone Battery Charger for Tourism Camping Hiking Phone Charger - AliExpress 20W Outdoor Foldable Solar Panels Cell 5V USB Portable Solar Smartphone Battery Charger for Tourism Camping Hiking Phone Charger - AliExpress](https://ae01.alicdn.com/kf/S6e3cc6a9137f4122a9cfaa8eacb694ac9/20W-Outdoor-Foldable-Solar-Panels-Cell-5V-USB-Portable-Solar-Smartphone-Battery-Charger-for-Tourism-Camping.jpg)
20W Outdoor Foldable Solar Panels Cell 5V USB Portable Solar Smartphone Battery Charger for Tourism Camping Hiking Phone Charger - AliExpress
![Solar Phone Charger 10.000mAh Power Bank - Portable Smartphone & iPhoneBattery + Emergency Flashlight – (2) USB Ports + (4) Foldable Solar Panels - FastCharging Smart IC Technology - Camping, Hiking - Walmart.com Solar Phone Charger 10.000mAh Power Bank - Portable Smartphone & iPhoneBattery + Emergency Flashlight – (2) USB Ports + (4) Foldable Solar Panels - FastCharging Smart IC Technology - Camping, Hiking - Walmart.com](https://i5.walmartimages.com/asr/908cbdc9-bbc2-4a60-9b77-25d82cfd5f5a_1.3a8f183f057bc5e5233bee14c92d05ca.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Solar Phone Charger 10.000mAh Power Bank - Portable Smartphone & iPhoneBattery + Emergency Flashlight – (2) USB Ports + (4) Foldable Solar Panels - FastCharging Smart IC Technology - Camping, Hiking - Walmart.com
![Nature Power Solar Powered Smartphone Charger with 5-Watt LED Light - 735396, Solar Panels & Accessories at Sportsman's Guide Nature Power Solar Powered Smartphone Charger with 5-Watt LED Light - 735396, Solar Panels & Accessories at Sportsman's Guide](https://image.sportsmansguide.com/adimgs/l/7/735396m4_ts.jpg)
Nature Power Solar Powered Smartphone Charger with 5-Watt LED Light - 735396, Solar Panels & Accessories at Sportsman's Guide
![Amazon.com : VOLTSET 21W Solar Charger QC and DC 2USB Ports, IP68 Waterproof Solar Panel for Smartphone Headphone Tablets, Compatible with iPhone 12/11/Xs/X/8, iPad, Samsung Galaxy, Huawei P/Mate, Google Pixel : Patio, Amazon.com : VOLTSET 21W Solar Charger QC and DC 2USB Ports, IP68 Waterproof Solar Panel for Smartphone Headphone Tablets, Compatible with iPhone 12/11/Xs/X/8, iPad, Samsung Galaxy, Huawei P/Mate, Google Pixel : Patio,](https://m.media-amazon.com/images/I/91xMraJS2gL._AC_UF894,1000_QL80_.jpg)
Amazon.com : VOLTSET 21W Solar Charger QC and DC 2USB Ports, IP68 Waterproof Solar Panel for Smartphone Headphone Tablets, Compatible with iPhone 12/11/Xs/X/8, iPad, Samsung Galaxy, Huawei P/Mate, Google Pixel : Patio,
![Amazon.com: 40W Portable Solar Charger, Solar Panel Chargers with USB-C PD2.0 USB-A QC 3.0, IP67 Waterproof and dustproof,Emergency ETFE Monocrystalline Solar Panels for Iphone, Smartphone, Power Banks and Tablet : Cell Phones Amazon.com: 40W Portable Solar Charger, Solar Panel Chargers with USB-C PD2.0 USB-A QC 3.0, IP67 Waterproof and dustproof,Emergency ETFE Monocrystalline Solar Panels for Iphone, Smartphone, Power Banks and Tablet : Cell Phones](https://m.media-amazon.com/images/I/71ODEQccT1L._AC_UF894,1000_QL80_.jpg)
Amazon.com: 40W Portable Solar Charger, Solar Panel Chargers with USB-C PD2.0 USB-A QC 3.0, IP67 Waterproof and dustproof,Emergency ETFE Monocrystalline Solar Panels for Iphone, Smartphone, Power Banks and Tablet : Cell Phones
![Man Charging Smartphone With Solar Panel In A City In A Sunny Summer Day Sustainable Lifestyle Solar Energy Ecological Alternative Energy And Ecology Concepts High-Res Stock Photo - Getty Images Man Charging Smartphone With Solar Panel In A City In A Sunny Summer Day Sustainable Lifestyle Solar Energy Ecological Alternative Energy And Ecology Concepts High-Res Stock Photo - Getty Images](https://media.gettyimages.com/id/1644063930/photo/man-charging-smartphone-with-solar-panel-in-a-city-in-a-sunny-summer-day-sustainable.jpg?s=1024x1024&w=gi&k=20&c=oPkoWjoNL9WKV6-S6sntCgXv1zeS67qkuCHhrc34agk=)
Man Charging Smartphone With Solar Panel In A City In A Sunny Summer Day Sustainable Lifestyle Solar Energy Ecological Alternative Energy And Ecology Concepts High-Res Stock Photo - Getty Images
![50W Foldable Solar Panel 18V Black Portable Solar Charger Outdoor Quick Charge Solar Panels for Smartphone Power Bank - AliExpress 50W Foldable Solar Panel 18V Black Portable Solar Charger Outdoor Quick Charge Solar Panels for Smartphone Power Bank - AliExpress](https://ae01.alicdn.com/kf/S736d223004de44a593dc49b7641cd2694/50W-Foldable-Solar-Panel-18V-Black-Portable-Solar-Charger-Outdoor-Quick-Charge-Solar-Panels-for-Smartphone.jpg)