uploading to icloud
Can you upload pictures to icloud without wifi just using data
iPhone 6 Plus, iOS 12
Question marked as
See the following from Set up and use iCloud Photos - Apple Support
Your collection uploads to iCloud each time your device connects to Wi-Fi and your battery is charged. When you have iOS 11 or later, your library updates over cellular too. Depending on your Internet speed, the time it takes for you to see your photos and videos on all of your devices and iCloud.com might vary.