HUAWEI Band 9, Comfortable All-Day Wearing，Sleep Tracking，Vital Sign Tracking，Fast Charging & Durable Battery，Intelligent Brightness Adjustments，100 workout modes，Compatible with iOS&Android, Black

As described on the site.

I LOVE this band. I was looking for something I could wear and did not know it was on my wrist. Well, I found it in this band. I charge it once a week when I am in the shower and usually when I get out the band is fully charged. I did switch out the band to the Nylon Straps Compatible Super-Lightweight Sport Loop Replacement Soft Textile Breathable Braided Woven Fabric Nylon Bands. It gives me all the data I need to maintain my workouts and busy day.

Fast shipping very light and comfortable to wear all day

Llevo unas semanas con esta banda puesta y es excelente. Antes de comprarla hice varias comparaciones con otras marcar reconocidas, priorizando la precisión antes que la estética. No se que tan precisa es con relación a equipos médicos profesionales, ya que no he tenido la oportunidad de comprarlos, pero segungun la tecnología y lo que leí, es bastante precisa y en algunos puntos varia muy poco.- La calidas es muy buena.- Es super ligera.- Fácil de poner y quitar.- Fácil de emparejar con el móvil (en mi caso Android).- Me gusta mucho su interfaz y la app.- Puedes cambiarle la correa.Para resumir, la recomiendo al 100%.

Me agradó bastante en lo personal, es muy cómodo y fácil de manejar.Lo utilice para mi, es de uso personal.

Simple operation, powerful functions, competitive price, better than other brands.

Excelente producto, se recibe de acuerdo a lo esperado.

I choose this tracker for the superior accuracy in the HR tracker for the price. From that perspective it did not disappoint. The screen is nice to view and the touchscreen is responsive. The low rating is for the incredibly poor software. Even with the limitations on upgradeability in the US, it still just is not good. Sleep tracking is silly inaccurate. Anything other than pure just HR is not right. So it's a HR tracker and for that, priced appropriate. It's a bit of a stretch to call it a smartwatch.