Table 6.

Summary of device study objectives (intermittent recording devices).

Device, study, heart disorder or ECGa abnormality					Comparators		Participants, n		Sensitivity, %		Specificity, %		Accuracy, %
Handheld
	Beurer ME 80
		Nigolian et al [23]
			AFb	12-lead device		16		100		94		96
			AVBc	12-lead device		13		85		97		94
			LBBBd	12-lead device		7		71		100		96
			RBBBe	12-lead device		10		90		100		98
			LVHf	12-lead device		5		80		100		98
			ST-segment elevation	12-lead device		11		64		93		87
			ST-segment depression	12-lead device		13		54		95		85
			Prolonged QTc	12-lead device		4		50		91		88
	Coala Heart Monitor
		Insulander et al [24]
			AF	—g		1000		95.1		97.6		97.3
	ECG Check
		Aljuaid et al [25]
			AF	Holter		90		100		97		—
	Eko DUO
		Bokma et al [26]
			CHDh	12-lead device, Move ECG, KardiaMobile		176		100		99		—
		Bachtiger et al [27]
			LVEFi of ≤40%	12-lead device		1050		91.9		80.2		—
	Istel HR-2000
		Krzowski et al [28]
			Sinus rhythm	12-lead device and KardiaMobile		98		91.5		84.6		—
			AF	12-lead device and KardiaMobile		98		77.3		98.7		—
	KardiaMobile
		Krzowski et al [28]
			Sinus rhythm	12-lead device and Istel HR-2000		98		88.1		89.7		—
			AF	12-lead device and Istel HR-2000		98		86.4		97.4		—
		Palà et al [29]
			AF	WatchBP, MyDiagnostick, and FibriCheck		359		80		95.5		—
		Lau et al [30]
			AF	12-lead device		109		97.5		92		94.5
		Desteghe et al [31]
			AF (cardiology ward)	12-lead device and MyDiagnostick		445		54.5		97.5		—
			AF (geriatric ward)	12-lead device and MyDiagnostick		445		78.9		97.9		—
		Bokma et al [26]
			CHD	12-lead device, Move ECG, and Eko DUO		176		100		99		—
		Scholten et al [32]
			AF	12-lead device, Apple Watch, and Move ECG		220		99		97		—
		Bumgarner et al [33]
			AF	12-lead device		100		99		83		—
		Ford et al [34]
			AF	Apple Watch		125		94		90		91
		Wasserlauf et al [35]
			AF	Implantable Cardiac Monitor		24		83.3		83.3		—
		Himmelreich et al [36]
			AF and AFLj	12-lead device		23		100		100		—
			AF	12-lead device		44		90.9		93.5		—
			AF	12-lead device		28		46.4		100		—
	MyDiagnostick
		Tieleman et al [37]
			AF	12-lead device		192		100		95.9		—
		Palà et al [29]
			AF	WatchBP, KardiaMobile, and FibriCheck		359		76.9		97.1		—
		Verbiest-van Gurp et al [38]
			AF	12-lead device and WatchBP		4339		90.1		97.9		—
		Vaes et al [39]
			AF	12-lead device		191		94		93		—
		Yeo et al [40]
			AF	12-lead device		671		100		96.2		—
		Karregat et al [41]
			Paroxysmal AF	12-lead Holter		270		66.7		68.8		—
		Desteghe et al [31]
			AF (cardiology ward)	12-lead device and KardiaMobile		445		81.8		94.2		—
			AF (geriatric ward)	12-lead device and KardiaMobile		445		89.5		95.7		—
	Zenicor-ECG
		Doliwa et al [42]
			AF	12-lead device		49		96		92		—
Wearable
	Apple Watch
		Abu-Alrub et al [43]
			AF	Galaxy Watch Active 3, and Move ECG		100		87		86		—
		Nasarre et al [44]
			Cardiac abnormalities and cardiac arrest	12-lead device		67		100		100		—
			Brugada Syndrome	12-lead device		67		92		100		—
			Long QT	12-lead device		67		80		100		—
			HCMk	12-lead device		67		92		85		—
			ARVC/Dl	12-lead device		67		100		99		—
		Caillol et al [45]
			Bradyarrhythmias	12-lead device		40		96		91		—
			Tachyarrhythmias	12-lead device		40		25		99		—
			Cardiac Ischemia	12-lead device		40		7		100		—
		Spaccarotella et al [46]
			Measurements of the QT interval	12-lead device		—		69		88		—
		Scholten et al [32]
			AF	12-lead device, Move ECG, and KardiaMobile		220		96		94		—
		Ford et al [34]
			AF	KardiaMobile		125		68		93		87
	Move ECG
		Bokma et al [26]
			CHD	12-lead device, KardiaMobile, and Eko DUO		176		100		98		—
		Abu-Alrub et al [43]
			AF	Apple Watch, Galaxy Watch Active 3		100		88		81		—
		Scholten et al [32]
			AF	12-lead device, Apple Watch, and KardiaMobile		220		95		95		—
	Nuubo ECG Vest
		Eysenck et al [16]
			AF	Zio XT, Nuubo ECG Vest, BardyDX CAM, and R.Test Evolution 4		21		—		—		30-second recording: 97; 6-minute recording: 89.7
	Fitbit
		Rajagopalan [47]
			AF	12-lead device		475		98.7		100		—
	Galaxy Active Watch
		Yang [48]
			AF	12-lead device		544		98.1		100		—

^aECG: electrocardiogram.

^bAF: atrial fibrillation.

^cAVB: atrioventricular block.

^dLBBB: left bundle branch block.

^eRBBB: right bundle branch block.

^fLVH: left ventricular hypertrophy.

^gNot available.

^hCHD: congenital heart defect.

ⁱLVEF: low ventricular ejection fraction.

^jAFL: atrial flutter.

^kHCM: hypertrophic cardiomyopathy.

^lARVC/D: arrhythmogenic right ventricular cardiomyopathy/dysplasia.