What is the average lead time for orders?

The average lead time is within 15 workdays for both peak season and off-season orders.

What payment methods are accepted?

We accept T/T, PayPal, Western Union, and Money Gram as terms of payment.

What languages are supported on the watch and APP?

The watch supports 14 languages including English and Chinese. The APP supports over 30 languages including English, Chinese, European, and Asian languages.

2026 Multi-function Smart Bluetooth Bracelet with Flashlight SOS Call Sleep Monitor for Android iOS E571

Name: 2026 Multi-function Smart Bluetooth Bracelet with Flashlight SOS Call Sleep Monitor for Android iOS E571
Brand: Hong Kong Yushengchang Technology Co., Limited
SKU: 2278920355

Guangdong, ChinaHong Kong Yushengchang Technology Co., Limited

US$17.00

1 Piece

Product specifications

Strap Color

Sample price:US$17.00/piece.Request sample

Product profile

Customization

Available

Display

IPS

Usage

healthcare

Model NO.

E571

Material

Silicone

Feature

Bluetooth, Water Resistant

Waterproof

IP68 Waterproof

Main Chip

JL7013A

G-sensor

DA267

Optical Chip

VP555ER

Bluetooth version

5.3BLE

Screen Size

2.0-inch screen

Resolution

320*385 pixel

Battery Capacity

450mAh

Normal use

4-7days

Standby time

20+ days

Charging Type

Magnetic charging

Battery Type

High density li-polymer

Bracelet size

260*41*11MM

System

Android 8.0 and above, iOS 13.0 and above

APP

G band

Transport Package

Giftbox Package or Custom Package

Specification

CE, RoHS

Trademark

OEM/ODM

Origin

Shenzhen, China

HS Code

9102190000

Production Capacity

10000PCS/Day

Key features

Comprehensive Health Monitoring: Features ECG, blood oxygen, blood pressure, glucose, sleep, and heart rate tracking for full health analysis.

Emergency SOS & Flashlight: Equipped with SOS emergency call function and a strong flashlight for safety and convenience in dark environments.

Long Battery Life: 450mAh battery provides 4-7 days of normal use and over 20 days of standby time with magnetic charging.

Multi-Language Support: Supports 14 languages on the watch and over 30 languages on the APP, including English, Chinese, and European languages.

IP68 Waterproof Design: Rated IP68 waterproof, allowing for safe use in various weather conditions and daily water exposure.

Smart Connectivity: Compatible with Android 8.0+ and iOS 13.0+, featuring Bluetooth 5.3, call reminders, and social media integration.

Durable Material Construction: Made with plastic injection shell and electrode steel sheet, paired with a comfortable silicone strap.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season orders, ensuring timely delivery.

Company profile

Hong Kong Yushengchang Technology Co., LimitedGuangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2013-08-01Nearest Port: YanTian ShenzhenAverage Response Time: ≤5.28hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, FCA

AI-Powered supplier vetting

SummaryHong Kong Yushengchang Technology Co., Limited is identified as a China-based trading company established in 2013, with operations and manufacturing information centered in Shenzhen, Guangdong. Its stated product range focuses on GPS trackers, smartwatches, wearable devices, and smart AI glasses. The supplier reports CE, RoHS, GSMA/TAC, Anatel, and FCC-related certifications, a 103.0 m² manufacturing plant, three production lines, and 6–10 quality-control staff. It reports export activity since 2013 and that 90% of sales are from exports. The available information supports a positive assessment of certification coverage, product innovation, and stated production infrastructure. Evidence is insufficient to verify after-sales service, customization, or customer cases. Corporate identity and operating details are inconsistent across the records, including Hong Kong and Shenzhen legal/company references, so verification would be appropriate.

Supplier typeThe supplier is explicitly described as a Trading Company and Limited Company, while its product descriptions present it as a provider of GPS positioning and wearable technology. Records identify Hong Kong Yushengchang Technology Co., Limited and Shenzhen Yushengchang Technology Co., Ltd., indicating trading and Shenzhen operating/company information but not a single unambiguous legal structure across all records.

CertificationsThe supplier explicitly states that it has CE, RoHS test reports and certificates, GSMA/TAC certification, an Anatel certificate for Brazil, and an FCC ID. These stated certifications provide direct evidence of compliance-related documentation for its electronics and connected-device products.

R&D capabilityThe supplier states that it develops GPS positioning solutions, IoT and wearable products, Bluetooth smartwatches, smart AI glasses, and trackers for children, elderly users, vehicles, pets, and personal security. Its stated technical agility and broad connected-device portfolio support an affirmative assessment of product innovation capability.

Production capacityThe records identify a Shenzhen factory location, a 103.0 m² manufacturing plant, three production lines, and 6–10 quality-control staff. The supplier also reports production of GPS trackers, smartwatches, and smart AI glasses, plus export operations since 2013; these details provide explicit evidence of operating production capability, although the reported output information is inconsistently formatted.

Product Q&A

Q:What health features does the E571 bracelet support?

It supports ECG heart health analysis, non-invasive blood glucose measurement, blood oxygen, blood pressure, sleep monitoring, heart rate, body temperature, and women's health tracking.

Q:Is the smart bracelet waterproof?

Yes, it features IP68 waterproof rating, making it resistant to water splashes and suitable for daily wear.

Q:What are the battery specifications and usage time?

It has a 450mAh high-density li-polymer battery, offering 4-7 days of normal use and over 20 days of standby time with magnetic charging.

Q:Which operating systems are compatible with this device?

The bracelet is compatible with Android 8.0 and above, as well as iOS 13.0 and above.

Q:Does the bracelet have an SOS emergency function?

Yes, it includes an SOS emergency call function and a strong flashlight for safety purposes.