Q: How long do you think you could go without using your smartphone? Except during working time/working hours, I guess I can't do anything without a smartphone. I use the smartphone instead of a watch to check the time, I use google maps to guide me to my destination, I use the camera to take a photo to record everything, I use a learning app to study English and so on. I rely on many applications on my smartphone in daily life, but I didn't often use social media because I think this makes people obsessed with wasting time.