F21 Universal Smart Bracelet Color Screen Sports Bracelet Fitness Tracker IP68 Waterproof Bluetooth For IOS Android Smart Watch

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Availability: in stock
Color: 01 02 03
Ships From: China United States SPAIN Russian Federation France
Price:  US $35.45
Sale Price:  US $24.46
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45 days Money back 45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery On-time Delivery
Guarantees: On-time Delivery 60 days


Product model: F21

App operating system: above IOS8.0, Android4.4

The main function

Heart rate monitoring, blood pressure, step counting, distance, calories, sleep monitoring, stopwatch, countdown, incoming calls

Reminder (call number/name), information reminder, alarm clock reminder, anti-loss reminder, sedentary reminder,

Female menstrual function reminder, remote photography, raising the wrist bright screen

Gsencor sensor: kxtj3-1057

Main control: nRF 52832

Heart rate sensor: 100 million light pd70-01c -TR7

Vibration reminder: motor vibration reminder

Waterproof grade: IP68

Supported languages: English, German, Russian, Japanese, French, Korean, Portuguese, Spanish, Italian, Persian, Vietnamese

Size: 1.14″ 135*240

Type TFT

Connection mode: bluetooth BLUE 4.0

Size: 47*24*13mm

The whole machine: 260 * 24 * 13 mm

Other operations: single touch, raise the wrist to light up the screen

Battery: polymer lithium ion battery

Standby time: 7-10 days

Charging mode: magnetic absorption charging line

Charging time: about 2 hours


Applicable systems: android, apple iOS

Applicable people: universal

Screen size: 1.14

Material: OLED

Battery capacity: 170mAh

Product weight: 28G

Wear mode: wristband type

Port: USB 2.0

Wireless distance: 5m(inclusive)-10m(inclusive)

Communication function: not supported

Material: silica gel

Color: black with gray, black with green, black with red

Package Included:

1* bracelet,

1* charging cable,

1* instruction manual


This is a sports bracelet without voice call function


Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $35.45
Sale Price:  US $24.46
from AliExpress