From google searches, it seems the GT-P5100 codes relate to the 3G version of the tablet, whereas the GT-P5110 codes relate to the WiFi version.
GT-P5110TSABTU WiFi, 16Gb, Black/Silver
GT-P5110TSEBTU WiFi, 32Gb, Black/Silver
GT-P5110ZWABTU WiFi, 16Gb, White
GT-P5110ZWEBTU WiFi, 32Gb, White
answered 1 year ago
Jarrow, Tyne & Wear
18out of 21found this answer helpful.