An insider speaking to The Investor says that Samsung kicked off mass production of the Galaxy S10 flagship last week - January 25. These are the three 4G models, which will primarily be manufactured overseas, work on the 5G model will start later on. The source says that all three Galaxy S10 models will feature in-display fingerprint readers. The 6.1" and 6.4" phones will go with a Qualcomm-developed ultrasonic reader (with better accuracy and reliability) while the 5.8" one will use an optical reader. The mid-sized and large Galaxy S10 will have curved screens and Samsung will ship...