Rainbuvvy S666 Android Smartwatch
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.
Price History for seller Joom
Shipping options
United States
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| Brand | Rainbuvvy | Motast | LOKMAT | LOKMAT | ||
| Model | S666 | P99 | APPLLP 6 MAX | Pixel Watch 3 | COMET2 PRO | A70 |
| Color | ||||||
| Rating |
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| Price | $64.58 | $105.99 | $138.61 | $208.20 | $61.38 | $59.39 |
| Seller | Joom | Amazon | Banggood | Amazon | Banggood | Banggood |
| Update | Feb 10, 2026 | May 4, 2026 | Jun 5, 2026 | May 17, 2026 | May 9, 2026 | May 9, 2026 |
| Display Size | 1.57 inches | 1.96 inches | 2.16 inch AMOLED | |||
| Battery Capacity | 240 mAh | 1150mAh | 320mAh | 600mAh | ||
| Bluetooth Version | 5.0 | 5.4 | BT4.2 | BT5.0 | BT5.0 | |
| Health Monitoring | Heart rate monitoring | 24/7 heart rate, SpO2, Sleep tracking (deep/light sleep) | Heart Rate Monitor, Blood Pressure Monitor, Blood Oxygen (SpO2) Monitor, Women's Health, Sleep Monitor, Breath Training | Heart Rate Monitor, Blood Oxygen (SpO2) Monitor, Blood Pressure Monitor, Sleep Monitor, Sedentary Reminder | ||
| Charging Time | 1.5-2 hours | About 2-3 hours | About 2 hours | |||
| Operating Mode | Full Touch | Full Touch | Full Touch | |||
| Special Features | Information Reminder, Call Reminder, Message Reminder, APP Notification | Information Reminder, Bluetooth Call, Call Reminder, Message Reminder, APP Notification | Information Reminder, Call Reminder, Message Reminder, Reject Call Notification, Call, Text, and Smartphone App Notifications | |||
Rainbuvvy S666 1.57 inch IPS display
Reviews
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