S18 4G Mini Cellphone 2.95'' 2+16GB MT6737 Dual SIM 5MP Rear Camera Android 9.0 Type-C

Description
Model number: S18
Screen: 2.95inch screen resolution 480*854
Chip: MT6737
CPU speed: 1.3 GHz
Camera: 2MP front, 5MP rear
Battery: 1400mah built-in polymer battery
SIM card: dual card dual standby
RAM: 2GB
ROM: 16GB
External TF card slot: Yes,up to 128GB
Button backlight: No
Side keys: yes
Bluetooth: Yes
FM radio: No
Charging type: Type-C
Headphone jack: none
OTG: None
Speaker: AAC
Receiver: Yes
Mobile phone size: 90.4*45.8*12.2 mm
Functions: Dual SIM,T FLASH card,Wi-Fi,GPS,MP3,MP4,BT,voice record,video record,alarm,calculator,calendar,LED Torch,G-Sensor,Side Keys,Multi-language, etc.

Network frequency band:
GSM: 900/1800/850
WCDMA: 850/900/2100
FDD: B1/B3/B5/B7/B8/B20
TDD: B38/B39/B40

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.