Table 2.

Average deviation (m) by device type and the type of environment.

Device Type	Site	Date	Start Time (GTM+1)	N (GPS Points)	Est. Mean Error	95% CI	SD	Median
Garmin	Historic center	30/11/2018	11:27	7036	23.59	[21.98, 25.20]	9.21	22.10
	Residential (family houses)	04/12/2018	15:36	7372	3.56	[1.95, 5.18]	1.92	3.63
	Open space	05/12/2018	14:40	7335	5.33	[3.71, 6.94]	1.36	5.10
	Residential (periphery)	09/12/2018	12:38	7382	5.73	[4.11, 7.34]	2.01	6.05
	Housing estate	09/12/2018	14:28	7386	11.59	[9.98, 13.21]	6.82	10.30
	Park	10/12/2018	16:29	7174	23.63	[22.02, 25.24]	9.40	23.80
Holux	Historic center	30/11/2018	11:27	7366	31.44	[29.82, 33.05]	12.90	27.70
	Residential (family houses)	04/12/2018	15:36	7329	1.87	[0.25, 3.48]	1.09	1.55
	Open space	05/12/2018	14:40	7390	3.36	[1.75, 4.98]	1.37	3.11
	Residential (periphery)	09/12/2018	12:38	7339	4.99	[3.38, 6.61]	0.76	4.99
	Housing estate	09/12/2018	14:28	7400	7.80	[6.18, 9.41]	5.47	5.83
	Park	10/12/2018	16:29	7200	19.30	[17.69, 20.92]	9.59	18.40
Qstarz	Historic center	30/11/2018	11:27	7252	35.55	[33.93, 37.16]	13.5	34.00
	Residential (family houses)	04/12/2018	15:36	7348	3.00	[1.38, 4.61]	0.85	2.90
	Open space	05/12/2018	14:40	7358	2.09	[0.48, 3.71]	0.83	2.12
	Residential (periphery)	09/12/2018	12:38	7345	5.59	[3.98, 7.21]	1.19	5.68
	Housing estate	09/12/2018	14:28	7345	12.42	[10.81, 14.04]	3.24	12.50
	Park	10/12/2018	16:29	7186	22.75	[21.13, 24.36]	7.59	22.10

Note: Estimated mean error (and 95% CI) obtained from linear mixed model.