I guess for some 15-20 minutes yesterday. That’s more than what the average usage of mine will be I guess. I use my mobile phone number to be reachable in case of emergency, call in emergencies and call people who only have a mobile number. I will use the Fairphone just as I did my mp3-player to listen to music on the road (when walking or in public transport, listening to music is too dangerous on a bike). Now that I have a smarthphone, I can look up information like the bus travel times when I’m walking or consult an offline map (Maps.me), search for information and I can now make use of the QR codes in museums that give extra information on the exhibits. I don’t see any other use for it. 15-20 minutes a day is more than the average that will be I guess, once I don’t spend time trying things out.
I don’t usually check for email on my phone, I do that at ease behind my desktop. And for my ease of mind, I don’t use any social media (well, then call YouTube a social medium in panel tests, but I only use that account to bookmark favourite video’s). So I don’t know why people spend so many time looking at their phones, but I can’t imagine myself doing it much.
*edit: 530 euro is a lot of money for so little use, I realize. It’s spend by me mostly to make a statement we as a consumer are willing to buy fair and sustainable electronics, if only they will be produced. My main dream is when in the future I can buy a motherboard, graphics card, SDD’s etc. for my desktop that are mined and produced sustainably and fairly (screen active for my desktop is nearly 50 times the time my phone’s screen is active I guess, some 10 hours a day).
update: 4% of the battery got used the last 8 hours. Wifi and mobile connection off, 2 short phone calls, no other usage (3% power got added by plugging in my phone to upload the screenshot, bringing it back to 67% ()):
(*): which of course begs the question: how do I avoid cheating? As soon as I connect my phone to my desktop to upload a screenshot image, the battery gets a boost, bam, rising from 64 to 67% full. Sorry (If you look closely at the image, you can spot the 2 tiny bumps at the time I uploaded an image to create a post in this topic )