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Gocomma B2 RFID Sports Smart Watch Fitness Tracker
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Gocomma B2 RFID Sports Smart Watch Fitness Tracker

- Green Yellow

Heart Rate Blood Pressure Oxygen Sleep Monitor IP67 Waterproof 1.3 inch Color Screen NFC Card
15.99 $24.25 34% OFF
    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Aug 24 - Aug 26, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
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  • interest-free You can enjoy a maximum of 0 interest-free installments, and may not enjoy this offer when placing orders with other products
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Gocomma B2 RFID Sports Smart Watch Fitness Tracker has built-in NFC card, which can brush NFC access control system such as smart door lock. It includes health monitoring: heart rate, blood pressure, blood oxygen saturation, sleep monitoring, etc. It supports motion monitoring in multiple sports modes, except for step counting. , mileage, calories, as well as running, hiking, cycling, and other modes. There are also a lot of daily practical functions such as social message push, call reminder, alarm clock, stopwatch and so on.

Main Features
● Record time and step
Time, date, week, step, mileage, calories
● NFC function
Support NFC card swipe function, you can brush NFC access control system such as smart door lock
● Health monitoring
Heart rate, blood pressure, blood oxygen, sleep monitoring
●Sports monitoring
Support multiple sports modes ( running, hiking, cycling, etc. )
● Smart reminder
Call reminder, massage reminder, support WeChat, Facebook, Twitter, WhatsApp, LINE, etc.
● Life assistant
Stopwatch, alarm clock, sedentary reminder, find mobile phone



Brand: Gocomma
Screen: TFT
Bluetooth Version: Bluetooth 4.0
Screen resolution: 240 x 240
Screen size: 1.3 inch
IP rating: IP67


Find phone: Yes
Groups of alarm: 8
Health tracker: Blood Oxygen,Blood Pressure,Heart rate monitor,Sleep monitor
Messaging: Message reminder
Other Function: Alarm,Bluetooth,Calendar,Stopwatch,Waterproof
Notification type: Facebook,Line,Twitter,Wechat,WhatsApp


Battery Capacity: 180mAh
Charging Time: About 2hours
Standby time: 30 days

Dial and Band

Band material: Silicone
Case material: ABS,PC
Shape of the dial: Round


Compatible OS: Android,IOS
Language: English,French,German,Hindi,Italian,Japanese,Korean,Polish,Portuguese,Russian,Simplified Chinese,Spanish,Thai,Traditional Chinese

Dimensions and Weight

Product weight: 0.0330 kg
Package weight: 0.1300 kg
Product size (L x W x H): 25.00 x 4.50 x 1.20 cm / 9.84 x 1.77 x 0.47 inches
Package size (L x W x H): 13.40 x 8.50 x 3.80 cm / 5.28 x 3.35 x 1.5 inches

Package Contents

Package Contents: 1 x Smart Watch, 1 x English Manual, 1 x Charging Cable
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow
Gocomma B2 RFID Sports Smart Watch Fitness Tracker Heart Rate Blood Pressure Oxygen Sleep Monitor 1.3 inch Color Screen NFC Card - Green Yellow

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Customer Reviews

4.54 out of 5
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  • 34
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See all 106 reviews Write a Review
  • Serge
    Yes (0) Color: Ash Gray
    Gocomma B2 RFID Sports Smart Watch
    A good smart bracelet, waterproof, a lot of modes and measurements, NFC. The charge lasts for almost two weeks, if you turn off the activation of the screen when you raise your hand - it will last even longer.
    Two main screens to choose from - switched randomly - nothing was written about it in the instructions (you have to hold the selection button for a long time to change).
    Information about calls and SMS is displayed with a delay of about 1-2 seconds. It is a pity that there is no choice in the application of alerts from Viber and Scype.
    Delivery as always fast in 10 days.
    Among the shortcomings: a slightly faint glow of the screen - poorly visible in the sun, small letters in alerts and no information about the charge and binding phone on the second screen.
    I would recommend to buy.

    May 11,2019

  • Tiago Diaz
    Yes (1) Color: Ash Gray
    Minhas recomendações
    Ótimo produto não tem muitos videos para fazer comparativos, sobre o produto porem estou surpreso com o produto, porque carreguei a bateria do aparelho deixei todos os app ativados para ver a duração da bateria.
    A bateria tem mais de 24 horas toda hora esta vibrando e a bateria é bem eficiente demorei um pouco para comentar para ver a duração, mas me surpreendeu.
    Estou maravilhado adorei e estou recomendando o vendedor e o produto.
    E sim muito resistente a suor e água, é leve confortável, e bonito.
    Faltou uma película de proteção vir junto de brinde e uma pulseira extra, fora isso super indico.

    Jun 19,2019

  • ima
    Yes (1) Color: Ash Gray
    4 estrelas
    o equipamento chegou sem problemas e na data prevista!
    serviço rápido.
    o equipamento corresponde à descrição e funciona na perfeição.
    a app Wearfit funciona mas com alguma limitações / bugs nas notificações.
    uso a app Wearfit 2.0, embora diga que não suporta o equipamento, as notificações e medições funcionam sem problemas.
    a distancia máxima permitida entre o telemóvel e o relgio não deverá ultrapassar os 10m.
    um outro ponto fraco é não deixar aumentar / diminuir a luminosidade do ecrã do relógio.

    Jun 26,2019

  • Barbara Malthus
    Yes (0) Color: Ash Gray
    Came with good packaged
    I just got the goods, and it looks stylish and seems with well-built quality, the packaging is very tight, so the watch come without any problem. The most impressed thing is the softness of the strap , and it is very comfortable to wear. I think I'll carry it with me every day.

    Apr 12,2019

  • Ingemar Kelvin
    Yes (1) Color: Ash Gray
    My friend like this gift
    I bought this watch for my friend, she likes it very much, very beautiful! It has many functions, such as record time and step, NFC function, support health & sports monitoring, smart reminder and so on. I think it really a good watch and for this price is definitely worth it.

    May 04,2019

FAQ for Gocomma B2 RFID Sports Smart Watch Fitness Tracker

  • What features does Gocomma B2 Smart Watch have?

    Time, step, heart rate, sleep, blood pressure, blood oxygen, multiple exercise modes, call and information push, unlock NFC smart door lock and other access control systems.
  • What sport modes does Gocomma B2 Smart Watch have?

    Running, climbing, riding.
  • Can the B2 NFC smart watch unlock smart door locks?

    As long as the smart door lock has the NFC card swipe function, it can be used after adding the “B2 NFC smart watch” user to the smart door lock.
  • B2 NFC smart watch can still unlock the door lock when there is no power?

    The B2 NFC smart watch can be used to swipe the smart door lock whether it is powered or not, and any interface of the watch can be used.
  • What is the App name of B2 smart watch?

    Wearfit, iOS phones and Android phones can be installed by searching for "Wearfit" in the App Store and Google Play. Or scan the code manual QR code to install it.
  • What are the OS requirements to use App?

    Android 4.4 or above,IOS 8.0 or above, Bluetooth 4.0.
  • How long the working time of it?

    30 days standby time, 10 days for normal using.
  • What is the waterproof level of it?

    IP67 waterproof level, can be worn to wash your hands, but please do not wear hot shower.
  • Is there a choice of several strap colors?

    There are two clolors: one gray, one green.
  • How can I choose the smartwatch that fits me the most?

    You can consider these points:

    ● OS & compatibility

    ● display material

    ● buttons or touch

    ● APP and features

    The detail suggestions you can read this post:

    Smartwatch buying guide :

  • What functions can be used when Bluetooth is off?

    Usually pedometer, sleep monitor, alarm and heart rate monitor still can be used without connecting to Bluetooth. Calling reminder, remote camera, find phone need Bluetooth connection.
  • I can't find wristband when I try to pair it with my phone. How to fix this?

    1. Please make sure the Bluetooth on your phone has been switched on, and keep wristband and your phone within 0.5 meter. After pairing Bluetooth.

    successfully, the Bluetooth communication range is less than 10 meters.

    2. Please check if the battery of wristband is running low.

    3. Please restart the Bluetooth connection.

  • Why the device cannot boot or start up properly?

    Please charge your new device for at least 10 minutes or more before the first usage, this ensures normal device boot and optimal operation.
  • Can this item be shipped to my country?

  • How to catch the best price on GearBest?

  • How many payments does GearBest support?

  • How to cancel the order on GearBest?

  • How to clean and maintain the smartwatch or smart band?

    Here is a specific guide for you.

    Smartwatch cleaning and maintenance manual

  • How to choose a smart band?

    You should consider the function and quality first, then take about the appearance. here is a specific guide for you.

    How to choose a smart band?

  • Where can I find the latest promotions on Gearbest?

    You can find out all Gearbest promotions here: Gearbest Promotion Collection.
  • Where can I get coupons on Gearbest?

    Find out all Gearbest coupons here: Gearbest Coupon Center
  • Which is the most affordable smart band on Gearbest 2020?

    The most affordable smart bracelet 2020 is Xiaomi Mi Band 5
  • View More

Customer Questions

  • All(2)
  • Product Information(2)
  • Stock Status
  • Payment
  • About Shipping
  • Others

Hello. I purchased your watch. Is it possible to change clock background or clock style or colors? Thanks

By Vladimir May-03/2019 06:18:01

Hello VladimirFor after sales issue, please go to our  Support Center here: a faster reply, please select the right question type.We kindly ask you to submit one ticket per topic(i.e order).We will reply you within 24 hours except on weekends and public holidays.

which app does it needs?

By Leona rdo Apr-04/2019 04:10:23

Hello Leona,Thanks for your inquiry.Notification type: Facebook,Line,Twitter,Wechat,WhatsApp    Have a nice day.

2 Questions & Answers View All

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There are two key factors which will affect the time you receive your items.

Item processing time
After receiving your order,we require some time to test the product to ensure its quality.The exact processing time varies depending on the item.The average processing time is 3 working days.but this can also be affected by the item's stock status. For small quantity orders,the processing time is 1-3days while larger quantity orders may require 2-5days.
Shipping methods
China Warehouse:
Shipping Type Country or Region Arrive within 1-7 Days Arrive within 8-15 Days Arrive within 16-30 Days Arrive within 31-45 Days Average Time (Days)
Unregistered Air Mail or Registered Air Mail United States 0.52% 44.87% 49.88% 3.5% 18.13
Spain, United Kingdom, Italy, Germany, France & Portugal 5.18% 43.44% 48.34% 1.17% 15
Netherlands, Greece, Poland, Hungary, Slovakia, Czech Republic 2.96% 40.34% 52.54% 3.74% 18.66
Russia 0% 4.45% 84.41% 11.1% 28
Japan, Korea 0% 21.30% 68.80% 9.66% 17.75
Brazil 0% 0% 23.91% 72.09% 38.6
Turkey 0% 37.75% 59.05% 3.1% 20.33
Thailand, Singapore & Malaysia 0% 40.39% 56.12% 2.6% 16.2
Other countries 0.7% 38.79% 47.94% 8.56% 23.57
Priority Line United States 12.28% 79.05% 7.4% 0.52% 11.75
Spain, United Kingdom, Italy, Germany, France & Portugal 8.44% 66.56% 23.45% 0.45% 13.55
Russia 0% 3.48% 75.79% 20.04% 31
Brazil 2.21% 6% 61.29% 25.46% 30
Turkey 20.42% 77% 3% 0.08% 10
Australia 7.67% 86.60% 5.68% 0% 11
Korea 97.54% 1.57% 0.89% 0% 7
Japan 95.80% 2.09% 0% 0% 6.84
Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8.45
Other countries 22.33% 30.8% 27.62% 17.64% 18.65
Expedited Shipping ALL countries(EMS) 3.8% 46.8% 26% 15% 14.8
ALL countries(DHL) 65.8% 25.75% 3.86% 0.37% 6.72
GW Warehouse: Typically 3-5 days to the UK, 3-7 days to other European countries.
USA Warehouse: Generally, 3-7 days to a USA address.
ES Warehouse: Generally, 2-5 days to the Spain, 3-7 days to the Portugal.
Shipping from warehouse nearest to shipping address is faster. Additional charges may apply.
Note: This is a general guide and delays maybe caused force majeure, natural disasters, inclement weather, war, public holidays, and factors outside our control. Generally speaking, we offer free shipping for Gocomma B2 RFID Sports Smart Watch Fitness Tracker to United States (US, USA), United Kingdom (UK, GB), Germany, Italy, France, Spain, Portugal, Poland, Brazil, Russia, Japan, Greece, Austria, Hungary, Slovakia, Czech Republic, Ireland, Lithuania, Israel, Denmark, Norway, Sweden, Canada, Australia, Netherlands, Korea, Turkey, Mexico, Ukraine, Romania, Columbia, Thailand, Singapore, Malaysia etc. Please choose the shipping methods for the final price.

Payment accepts PayPal,Credit Cards,Wire Transfer,Westem Union, YandexMoney,Webmoney,Boleto,OXXO and BKM as secure payment methods.

The most convenient payment method in the world.
Wire transfer
For orders which exceed $1,500,please contact us at
Note: please email us the order number,the amount transferred along with currency type,and the exact date of the wire transfer.
Western Union
Please contact us at for details.
Note: please email us the following information after you have paid via Westem Union:
· Control Number(10 digits)
· The exact amount sent along with the currency
· Name of sender.
· Address of sender
YandexMoney、 Webmoney
With YandexMoney and Webmoney, it is convenient and safe for you to pay via credit card、wallet or cash
For Brazil customers, we accept Boleto: you only need to fill in the payment information, remember your Boleto Voucher information and pay it within 3 days at any Boleto stores.
For Mexico customers, we accept OXXO: you can choose OXXO payment on our website, and then remember your OXXO Voucher information and pay it within 3 days at any OXXO stores.

Do you want to bulk buy ? Please submit your wholesale inquiry below. Please note we usually don’t offer free shipping on wholesale orders, but the wholesale price will be a big bargain.

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