WIFI/Bluetooth Support 4G Smart Watch with Nano SIM and Zinc Alloy Shell for Android 8.1

Description
Note:

1. This is the Eurasian version of the 4G smart watch, which supports 4G networks in Asia and Europe, the vast majority of telecommunication providers in the United States, Canada, Mexico and other country regions only support 3G networks.

2.This is an Android watch that does not need to be connected to a mobile phone APP. You only need to insert a SIM card or connect to WIFI to use it as an Android phone.

3.SIM Card Slot:

Inserting the sim card while the watch is on may cause the watch to not work properly.Make sure the watch is off before inserting the sim card.

4.It just support life waterproof,you can't put it into the water.

Features
CPU: SC8541E CoretexTM-A7MP Quad-Cord
Flash Memory(RAM+ROM): 2GB+16GB/2GB+32GB/4GB+64GB/4GB+128GB
Display: 2.02inch IPS round screen, resolution 320*385,
Heart Rate Sensor: BD1662 ultra-low power consumption, high-precision heart rate detection sensor
Pedometer: 3D G-sensor
RF Frequency Bands: GSM: B3+B5+B8
WCDMA: B1+B5+B8
LTE-FDD: B1/B3/B5/B7/B8/B20
LTE-TDD: B38+B39+B40+B41(100M)
WIFI: Support 2.4G Support 802.11b/g/n
BT: Support 4.2
Shell Materials: Zinc alloy+ABS+PC
Bottom: ShellPC+IML craft
Strap Materials: Silicon
Colour: Silver,Black,Red
Battery: 800mAh large capacity polymer battery
Charging: Magnetic charging
SIM Type: Support Nano SIM, to be inserted from watch side
Speaker: 0615 Speaker
Mic: Support
Motor: Support 0720 motor
O.S: Android 8.1
Product Size (mm) Body49.5+42.1+15.2MM Long strap: 120MM, Short strap: 80MM

Packing:

Smart watch*1
Charging Cable*1
Operation Instuction*1

Rainbuvvy is a vertically integrated smartwatch innovator based in China, operating both as the manufacturer behind global wearable brands and the creator of our own international smartwatch brand Rainbuvvy. With a dedicated team of 45+ engineers and industry specialists, we deliver OEM/ODM solutions, private label customization, and wholesale distribution for partners worldwide.

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Why Partner With Us?

Dual-Core Expertise
As both a brand owner and manufacturer, we understand market trends from dual perspectives:
Rainbuvvy Brand: Available on Amazon, eBay, Walmart.com, and regional e-commerce platforms across North America, Europe, and APAC.
B2B Solutions: 7+ years in R&D and bulk production of smartwatches with IP68/CE/FCC certifications.

Agile Customization
Negotiableunits for white-label orders with 45-day rapid turnaround
- Customizable hardware (watch faces, straps) & software (UI, health algorithms)
- Pre-loaded multi-language support for global markets

End-to-End Control
Ownership of the entire supply chain – from PCB design, mold development to quality assurance – ensures 30% faster prototyping and zero supply chain bottlenecks.

Data-Driven Innovation
Our Shenzhen-based lab continuously upgrades features based on 1.2M+ user data points collected from Rainbuvvy consumers, keeping your products ahead in:
▸ Health monitoring accuracy (heart rate, SpO2, sleep)
▸ Sports mode optimization (100+ activity profiles)
▸ Battery efficiency (up to 15 days per charge)

Global Footprint
• 20,000㎡ production facility with annual output of 800K+ units
• Serving 50+ distributors and brands across US, Germany, UAE, and Australia
• Warehouses in Los Angeles and Hamburg for faster regional delivery

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Your Next Step
Whether you're a startup seeking small-batch customization or an established retailer needing bulk supply, Rainbuvvy becomes your wearable tech arm.