Rainbuvvy S666 Android Smartwatch: 1.57 inch IPS display
For the active professional who needs to stay connected without checking a phone, this smartwatch keeps you informed discreetly. It’s not just a fitness tracker; it’s your personal assistant for managing daily tasks and health on the go.
The 1.57 inch IPS display shows notifications clearly in sunlight, so you never miss an important message. With heart rate monitoring, you can track your fitness progress during workouts or monitor stress levels throughout the day. The NFC feature lets you make quick payments, and Bluetooth 5.0 ensures a stable connection to your phone. At 240 mAh, the battery lasts through long days, and the lightweight design feels comfortable all day without weighing you down.
Features
- Bluetooth 5.0
- Heart rate monitoring
- NFC
- Multi-language support
- Super lightweight smart bracelet
- 240 mAh battery
- 200x320 resolution
- Color options: black/green
- 1.57 inch IPS display
General specs
- Brand: Rainbuvvy
- Model: S666
- Seller: Joom
- ID: 680083ba1ea746ac99136b88
- Type: Smartwatch, Smart bracelet
- Brand: Rainbuvvy
- Model: S666
- Processor: RTL8762DK
- Display Size: 1.57 inches
- Display Type: IPS
- Color Options: Black, Green
- Weight Category: Super lightweight
- Battery Capacity: 240 mAh
- Operating System: Android
- Bluetooth Version: 5.0
- Health Monitoring: Heart rate monitoring
- Languages Support: Multiple languages
- Display Resolution: 200x320 pixels
- Connectivity Features: NFC
- First listed by seller: 2/15/26
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Russia
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| Brand | Rainbuvvy | Rainbuvvy | Zodvboz | Xiaomi | Rainbuvvy | SACOSDING |
| Model | S666 | GT66 | 2024 PRO | Watch | D09 | |
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| Price | $62.08 | $85.13 | $58.53 | $67.58 | $31.17 | $209.43 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | Feb 18, 2026 | Feb 14, 2026 | Dec 8, 2025 | Feb 14, 2026 | Feb 5, 2026 | Feb 18, 2026 |
| Display Type | IPS | AMOLED | AMOLED | |||
| Connectivity | NFC, Bluetooth 5.2 | Bluetooth, GPS, NFC | Bluetooth | |||
