For scales running on firmware v1.73, the Timer-Weighing Mode only displays at an accuracy of 1 gram. However, for scales running on firmware 1.5, the Timer-Weighing Mode displays at an accuracy of 0.1 gram.
If you want to change your firmware, please send us an email: email@example.com and tell us your problem, only running iOS for now.
Alternatively, in firmware v1.73, you can turn on the E.Mode (espresso mode) for the Pearls to switch it to show Seconds+"0.0". However, in the Espresso mode, the timer will become a second time that counts from 0 to 60 and repeat its cycle.