Table 3.

Accuracy of date and time for Android mobile phones used for data collection (N=number of households where data were collected).

Device identity	Frequency (N=601)
	Accurate timing (N=528), n (%)	Errors in date/time (N=73), n (%)
3523xxxxxxxxxxx (N=107)	106 (99.1)	1 (0.9)
3538xxxxxxxxxxx (N=120)	110 (91.7)	10 (8.3)
3538xxxxxxxxxxx (N=122)	102 (83.6)	20 (16.4)
3538xxxxxxxxxxx (N=109)	83 (76.1)	26 (23.9)
3538xxxxxxxxxxx (N=10)	6 (60)	4 (40)
3560xxxxxxxxxxx (N=26)	24 (92)	2 (8)
8628xxxxxxxxxxx (N=9)	9 (100)	0 (0)
8636xxxxxxxxxxx (N=98)	88 (90)	10 (10)