KC89 1.8 Inch Round Shape Mobile Watch Long Lasting Vibration Reminder

Description
Model number: KC89
Screen size: 1.8-inches
Resolution: 360X360
System requirements: ios 9 and above, Andriod 4.40and above
Bluetooth version:5.3
Main control chip: JL7012F6
Gsensor: Minghao DA267
Heart rate: VC30F_S
Battery capacity: 760mAh high capacity high voltage
Charging method: magnetic charging cable
Motor: built-in vibration reminder
Waterproof level: IP68
Material: Zinc alloy + plastic
Watch size: 63*54.3*13.4mm
Strap width/material: 22mm/liquid silicone strap
Functions: AI voice assistant, Bluetooth calls, built-in mini games, calculator, heart rate, blood pressure, blood oxygen, sleep monitoring, all day heart rate measurement, step counting, calories, stopwatch, timer, turn your wrist to light up the screen, music control, alarm clock, search for mobile phone, 7 watch face UI switching (customizable watch faces), drinking water reminder, remote photo taking, female menstrual reminder, sedentary reminder, mobile phone search, multiple sports modes, brightness adjustment, off screen time setting, 8 menu styles, power saving mode, do not disturb mode, vibration intensity selection, time format, weather forecast, heart rate warning. etc

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.