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    2019-04-07 10:38:43

    😎 👍

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    2019-05-31 23:04:02

    Erittäin hyvä ja monipuolinen. Erittäin siisti ulkokuori. Viiden tähden kello.

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    2019-03-26 23:20:29

    OK

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    BY21

    2019-03-12 01:41:35

    Gostei muito. Funciona perfeitamente.Recomendo

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    lopezramon682@gmail.com

    2019-01-17 10:55:03

    Muy bueno

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    javier

    2018-10-20 11:34:47

    en buen estado practico y rapido en llegar

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    BY21 Smart band monitor

    2018-08-31 13:57:38

    The BY21 looks very nice and working O.K. but it is not so accurate and can not be depended on the readings specially the blood oxygen and blood pressure.

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    HMMMMM

    2018-05-09 02:00:43

    Works well but it is not visible in the sun!

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