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B57 blood pressure tracker fitness tracker waterproof heart rate Bluetooth smart bracelet
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B57 blood pressure tracker fitness tracker waterproof heart rate Bluetooth smart bracelet

- black

15.99 $16.99 6% OFF
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Main Features


1. Bracelet display function: time display, battery icon display, date display, week display, standard action function (step, distance, calorie) various sports modes (walking, running, cycling, jumping, badminton, basketball), football, Swimming), heart rate, blood pressure detection, oxygen detection in the blood, display sleep time, adjust brightness screen, music control.

2. Callback function: incoming call, SMS, QQ, WeChat callback (display content and name). Facebook, Whatsapp, Twitter, Skype and other foreign social software, alarm clocks (three sets of alarm clocks), reminders for sedentary reminders.

3. Other functions: intelligent anti-lost, remote photography, do not disturb mode, lift your hand to the bright screen, time format setting, restore factory settings, long press to reject incoming calls, select three clock interfaces, music control (previous song Support, next song, play/pause), weather display, etc.


2. Chip: NRF52832

3. Bluetooth: BT4.0

4. Compatible system: Android 4.4 and higher, IOS 9.0 or higher

5. Waterproof: IP67

6. Screen: 1.3 inch IPS color resolution: 240 * 240

7. Touch: One Touch

8. Battery: 180mAh

9. Charging: magnetic charging

10. Charging time: about 1.5H

11. Standby: about 25 days working time: about 7 days

12. Bracelet material: PC shell + plastic shell

13. Product Size: Approx. 48.9 * 34.5 * 11.7mm / 1.92 * 1.35 * 0.46in

14. Product net weight: about 25.7 grams

15. Support language APP: Ukrainian, Russian, German, Italian, Japanese, French, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean


1. Please charge before use!

2. Do not use the smart bracelet in sea water, hot water or hot water!

Packing List:

1 * bracelet

1 *Instruction

1 * charging cable


Waterproof Grade
Life Waterproof
Screen Type
Color LCD
Band Material
Application Age Group
Passometer,Fitness Tracker,Sleep Tracker,Message Reminder,Call Reminder
Touch Screen
All Compatible
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Customer Reviews

4.88 out of 5
  • 14
  • 2
  • 0
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See all 16 reviews Write a Review
  • Valdir de Oliveira Fonseca
    Ótimo relógio
    Ótimo custo benefício comparado com outros modelos, surpreendentemente funcional e cumpre com todas funções prometidas. Bateria dura bastante e a tela é ok, boa para personalizar! Frete bastante rápido, chegou antes do prazo!

    Jan 13,2020

  • Daniel
    Excelente !!!
    Gostei muito, relógio de altíssima qualidade, vale muito apena !
    Comprei da cor preta, agora é só se adaptar ao aplicativo.

    Dec 26,2019

  • Thais
    Ótimo custo benefício
    Smartwatch perfeito tanto para atividade física quanto para o dia a dia no trabalho por ser um modelo bem versátil. Me surpreendi bastante pelo baixo custo e ótima qualidade e eficiência. Não demorou muito para chegar.
    Vale muito a pena

    Dec 13,2019

  • hugonyland
    Produto OK
    Produto atende as características descritas. Aprovei. A entrega deixa um pouco a desejar por demorar muito, mas acredito que fuja das mãos da loja esse problema. De resto, produto veio bem embalado e a princípio funcionando muito bem.

    Dec 16,2019

  • Bruno
    the best watch in price range. Real cost benefit. thx gear best. i received in 25 days here in Brazil.

    Dec 27,2019

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