Renpho:<\/strong><\/p>\n\n\n\nTaking a measurement: 9 seconds<\/p>\n\n\n\n
Syncing data: Bluetooth. <\/p>\n\n\n\n
How to sync: Can only be done by standing on the weight with the app open. But the data is there instantaneously.<\/p>\n\n\n\n
Storage: It can store 10 measurements without syncing.<\/p>\n\n\n\n
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Withings:<\/strong><\/p>\n\n\n\nTaking a measurement: 35 seconds<\/p>\n\n\n\n
Syncing data: Bluetooth or wifi. <\/p>\n\n\n\n
How to sync: Syncs automatically over wifi. Almost instantaneous.<\/p>\n\n\n\n
Storage: Can store up to 16 measurements without syncing.<\/p>\n\n\n\n
<\/p>\n\n\n\n
Winner: Withings<\/strong><\/p>\n\n\n\nWithings does take almost 4 times more time, but in those 35 seconds it shows me all my measurements and a trend line for my weight, so I don’t mind waiting (the basic version of the Renpho doesn’t do this, but maybe the premium version does?). The reason Withings wins is that for syncing I don’t have to do anything else than standing on the weight, while with the Renpho I need to bring my phone, turn on Bluetooth, open the app and keep it open while taking the measurement. <\/p>\n\n\n\n
<\/span>Accuracy of the scale<\/span><\/h2>\n\n\n\nBioelectrical impedance scales are not accurate, and should mostly be used to track changes over time. <\/p>\n\n\n\n
Weight<\/strong>:<\/p>\n\n\n\nTheir weight measurements are ALMOST the same!<\/p>\n\n\n\nMuscle mass:<\/strong><\/p>\n\n\n\nMuscle mass measurements show almost the EXACT same trend.<\/p>\n\n\n\nFat mass:<\/strong><\/p>\n\n\n\nFor some reason the fat mass measurements don’t match up…<\/p>\n\n\n\nThis is the fat mass from Withings compared with the visceral fat measurements from Renpho (the blue line at the bottom).<\/p>\n\n\n\nThis is the fat mass from Withings compared with the subcutaneous fat measurements from Renpho. They also don’t seem to agree…<\/p>\n\n\n\nWinner: Not sure…<\/strong><\/p>\n\n\n\nThey show the same trends in weight and muscle mass, but differ in fat mass. The problem is that I don’t know which one is more correct…<\/p>\n\n\n\n
<\/span>App<\/span><\/h2>\n\n\n\nWinner: both<\/strong><\/p>\n\n\n\nBoth apps are intuitive to use and can show trendlines (for week\/month\/year) for all measurements, which is all I care about.<\/p>\n\n\n\n
<\/span>Available metrics<\/span><\/h2>\n\n\n\nRenpho:<\/strong><\/p>\n\n\n\nBelow you can see the available metrics from Renpho. <\/strong><\/p>\n\n\n\nIt can seem overwhelming, but the only ones I care about for bodybuilding: Weight, body fat & muscle mass.<\/strong> <\/p>\n\n\n\nWithings<\/strong><\/p>\n\n\n\nBelow the metrics from the Withings scale can be seen.<\/p>\n\n\n\n
The only ones I care about are: Weight, fat mass, muscle mass & Pulse wave velocity.<\/strong><\/p>\n\n\n\n<\/p>\n\n\n\n
The pulse wave velocity <\/strong>measurements from Withings is the main thing that would make me choose Withings over Renpho. Pulse wave velocity is the gold standard for non-invase measurement of arterial stiffness