{"id":"W4214543301","doi":"10.2196/33635","title":"Heart Rate Measurement Accuracy of Fitbit Charge 4 and Samsung Galaxy Watch Active2: Device Evaluation Study","year":2022,"lang":"en","type":"article","venue":"JMIR Formative Research","topic":"Non-Invasive Vital Sign Monitoring","field":"Engineering","cited_by":63,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Bundesministerium für Gesundheit; Deutsche Forschungsgemeinschaft","keywords":"Heart rate; Medicine; Activity tracker; Heart rate monitor; Physical therapy; Physical activity; Statistics; Mathematics; Blood pressure; Internal medicine","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.002384915,0.0008692916,0.0006855178,0.0008305229,0.0001440071,0.0007653083,0.0006008152,0.0008718877,0.00108568],"category_scores_gemma":[0.006542072,0.0002249676,0.0005949152,0.0005120275,0.0002737953,0.0006301684,0.0009405212,0.0002618261,0.0004203079],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002104012,"about_ca_system_score_gemma":0.0001211614,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004682671,"about_ca_topic_score_gemma":0.0006866673,"domain_scores_codex":[0.9974685,0.0008249496,0.0003575039,0.0005202894,0.0007316027,0.00009707456],"domain_scores_gemma":[0.9953216,0.001675636,0.0008230453,0.0005141049,0.00145791,0.0002077465],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.01982045,0.001233579,0.7491831,0.001029402,0.001476855,0.0005927333,0.001662203,0.00154853,0.07762299,0.0001854014,0.001160294,0.1444844],"study_design_scores_gemma":[0.0004614243,0.01514556,0.9531707,0.00008173732,0.0008811881,0.002049886,0.0004012678,0.008772172,0.01719301,0.00006639989,0.001692901,0.00008387964],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9955858,0.0004670664,0.003005998,0.0000224493,0.0000296867,0.00008434836,0.0002849716,0.00005558135,0.0004640933],"genre_scores_gemma":[0.9952688,0.0001817692,0.003308167,0.00006347651,0.00003130318,0.0001156851,0.0006003992,0.00001993774,0.0004105221],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002384915,"threshold_uncertainty_score":0.01261282,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1385895742659559,"score_gpt":0.4045060877409611,"score_spread":0.2659165134750051,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}