About this item

• 2.88 inch HD Large Screen: High-definition and comfortable 2.88 inch TFT full touch large screen with 480*640 resolution, sensitive touch, smooth operation experience, smoothly play the apps you need. Bring a unique and innovative visual experience.
• lndependent SIM card: The Smart watch built-in SlM card slot, support full Netcom 4G network and WiFi wireless fast Internetaccess. Support video call, text message, voice call and other functions, high-speed and stable network connection, easily handle important information on your wrist. (Note: The package does not include a SIM card.)
• Dual Camera & GPS: Using 13.0MP+5.0MP COMS high-sensitivity sensor, colorful and detailed, support for photography and video chat. Built-in GPS positioning navigation. Real-time reception of GPS/GLONASS satellite signals,precise trajectory, independent positioning and navigation.
• Android 11.0 OS: Equipped with the new Android 11.0 operating system,with an octa-core CPU and 4GB+64GB,6GB/128GB configuration,it runs at extreme speeds, allowing you to play mainstream mobile games without lag, helping you rule the battlefield.
• Long Standby: Equipped with 2300mAh polymer lithium battery, coupled with a deeply optimized energy-saving system, eliminating the trouble of frequent charging.
• Original Charger: B0FC2GXW85 Original Wristband: B0F2H7YFBP
• ✅ Design Philosophy of Smartwatches: Please dont mind. Operates as a standalone system, just like a mini smartphone, therefore does not support app connectivity. And the package does not include a SIM card.

S999 Android 11 Smartwatch with 2.88-Inch Display

Key Features

• 6GB/128GB Storage & Built-in GPS Navigation
• 2300mAh Long-lasting Battery with Waterproof Protection
• 13MP Rear Camera for High-Quality Photography
• 2.88-Inch Quad-Core Display for Vivid Visuals
• Heart Rate & Blood Oxygen Monitoring for Health Tracking
• Android 11 OS with 4GB/6GB RAM for Smooth Performance

Comprehensive Functionality

This smartwatch supports manual language selection, call answering and making, phonebook access, SMS messaging, third-party app downloads, video calls, photo capture, alarm clock, calendar, calculator, voice recording, local music playback, weather updates, voice search, step counting, multiple exercise modes, phone location finding, stopwatch, music control, raise-to-wake display, watch face customization, and message notifications.

Technical Specifications

Model	S999 Smart Watch
Display	2.88" TFT Touch Screen, Rectangular Full Touch
Resolution	480×640 pixels
RAM/ROM	4GB+64GB / 6GB+128GB
SIM Card	Nano SIM
Network	2G/3G/4G Internet Connectivity
Operating System	Android 11.0
Frequency Bands	GSM: 850/900/1800/1900 WCDMA: B1/B2/B5/B8 TD-SCDMA: B34/B39 LTE-FDD: B1/B2/B3/B5/B7/B8/B12/B17/B20 LTE-TDD: B38/B39/B40/B41(100MHz)
Camera	2.0MP + 8.0MP
Bluetooth	5.0 (Effective distance >10m in open environment)
Heart Rate Sensor	Tianyi Hexin hrs3300
Battery Capacity	2300mAh
WiFi Support	2.4GHz/5GHz
GPS	GPS + GLONASS
Battery Life	Up to 5 days
Charging Method	Magnetic Charging
Charging Time	Approximately 3 hours

Material & Dimensions

Watch Case	Aluminium Alloy
Button	Aluminium Alloy
Strap Material	Silicone
Head Size	77.2×53.6×15mm
Strap Size	32mm width, Total Length: 288mm, Adjustment Range: 190-270mm

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.

---

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

---

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.