I fly on vacation and do not want to take my laptop with me, so I take my camera with me to take beautiful photos.
Now I wanted to ask if you know something where I can't only save the photos from the SD card, but also look at the cell phone in the hotel or maybe send someone? (If possible without Wi-Fi, simply with a cable?)
By transferring them to the cell phone. And / or to the cloud. And / or on a mobile HD with SD card reader + WLAN.
But somehow it does not work with my camera over Wi-Fi to the cell phone.
Which camera? Which cell phone? Under certain circumstances, you can use a USB OTG adapter to drag and drop the pictures onto your cell phone when you take them, edit them with a DSLR dashboard or Snapseed. Otherwise there's perhaps a card reader for your cell phone with such a USB OTG adapter? Just browse the Amazon or Google.
If both can use WLAN, it can be done somehow without a cable or adapter. But you would have to know the devices…
The simplest and fastest way is probably simply a card reader with a micro USB or USB-C connection (depending on the cell phone). I assume that you take pictures in jpeg and not RAW?
I have a Samsung Galaxy S8 and a Sony alpha 7ii
Yes I prefer to take pictures in jpeg. I also do Raw, depending on what kind of photos.
Mobile wireless hard drive with card reader.