I had a Galaxy Tablet about a year ago, and I had the Logos app on it. But I switched to iOS bc I thought it was better for biblical studies.
While everything Helen said is true, except perhaps that you would love an iPhone, I would recommend an iOS device if you are also interested in any of the following:
Custom fonts: you can load any font in iOS, including any Unicode one.
Hebrew: I wasn't able to work with Hebrew like I can on my iPad. I use custom Hebrew fonts and even have a custom Hebrew keyboard.
Unicode: you can use any Unicode font in almost every productivity app – Pages, Mellel, Scrivener, Unicode Pad, Keyman, etc.
Productivity: all deriving from the above.
So, for e.g. I can read in Acc and copy and paste original language texts into say Pages or Mellel, then into Scrivener, then copy to Dropbox, iCloud, etc., and continue on my desktop.
For Christ's love compels us (2 Cor 5:14)
Accordance 12.1.1 & 2.5:
Mac mini, Sierra, 10.12.5
iPad mini 2, 10.3.3
ASUS VivoBook, Ubuntu 17, experimental, and rd