![Mi Band 4 Review: 20 Days Battery Life with a Full Colour AMOLED DisplayWritten by Cheryl Tan The Xiaomi Mi Bands have always represented a great value proposition; S$48 for a smart Mi Band 4 Review: 20 Days Battery Life with a Full Colour AMOLED DisplayWritten by Cheryl Tan The Xiaomi Mi Bands have always represented a great value proposition; S$48 for a smart](https://static.wixstatic.com/media/592b9f_abb9ff1de68f4a078c4b8c8f57b8a90a~mv2.jpg/v1/fill/w_630,h_1296,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/592b9f_abb9ff1de68f4a078c4b8c8f57b8a90a~mv2.jpg)
Mi Band 4 Review: 20 Days Battery Life with a Full Colour AMOLED DisplayWritten by Cheryl Tan The Xiaomi Mi Bands have always represented a great value proposition; S$48 for a smart
![Mi Band 4: Why is it that Sleep As Android showing sleep as 5h21m where as MiFit/Notify&Fitness shows it to be 7h19m which is accurate? Just bought the band last week. Can Mi Band 4: Why is it that Sleep As Android showing sleep as 5h21m where as MiFit/Notify&Fitness shows it to be 7h19m which is accurate? Just bought the band last week. Can](https://i.redd.it/xwp9i6l7wgz31.jpg)
Mi Band 4: Why is it that Sleep As Android showing sleep as 5h21m where as MiFit/Notify&Fitness shows it to be 7h19m which is accurate? Just bought the band last week. Can
![So I just got the mi band 4 yesterday. And tried sleep analysis . I have those 3 apps (mi fit,notify,sleep as Android) and they all put out different data . So So I just got the mi band 4 yesterday. And tried sleep analysis . I have those 3 apps (mi fit,notify,sleep as Android) and they all put out different data . So](https://preview.redd.it/g8u9lt9oemf31.jpg?auto=webp&s=4b6a8688803300c61668cb3991ac5a523ce3b34f)
So I just got the mi band 4 yesterday. And tried sleep analysis . I have those 3 apps (mi fit,notify,sleep as Android) and they all put out different data . So
![IJERPH | Free Full-Text | Is the Xiaomi Mi Band 4 an Accuracy Tool for Measuring Health-Related Parameters in Adults and Older People? An Original Validation Study IJERPH | Free Full-Text | Is the Xiaomi Mi Band 4 an Accuracy Tool for Measuring Health-Related Parameters in Adults and Older People? An Original Validation Study](https://www.mdpi.com/ijerph/ijerph-19-01593/article_deploy/html/images/ijerph-19-01593-g001.png)