KaiSai TK9 Health Tracker Ring: Sleep monitoring
For the active professional who wants health insights without another screen to check, this smart ring tracks your wellness discreetly. Wear it during your morning run or while managing a busy workday to monitor sleep patterns and activity levels seamlessly.
Beyond typical fitness tracking, it offers a minimalist approach to health awareness. The LED display provides quick glances at your data, and the IP68 waterproof rating means you never need to remove it—whether you're washing hands or caught in the rain. The antibacterial coating ensures comfort during long wear, making it ideal for daily use.
With up to 4 days of battery life and magnetic charging, it fits effortlessly into your routine. Compatible with Android 9.0+ and iOS 10.0+, it syncs easily to your phone for detailed insights. This ring helps you stay informed without distraction, supporting a balanced lifestyle.
Features
- Waterproof IP68
- Multiple sports modes
- LED digital display
- 15-day standby time
- Bluetooth 5.0 connectivity
- Sleep monitoring
General specs
- Brand: KaiSai
- Model: TK9
- Seller: Joom
- ID: 6900cab7a8348b01a7ed0297
- Size: 6
- Weight: <num1>, <num2>
- Material: Titanium Alloy
- Battery Life: 7–10 d
- Connectivity: Bluetooth
- Display Type: None
- Charging Time: <num_from>, <num_to>
- Inner Diameter: 16.5
- Charging Method: Magnetic
- Battery Capacity: <num1>
- OS Compatibility: Android, iOS
- Storage Capacity: <num1>, <num2>
- Water Resistance: IP68
- Bluetooth Version: 5.3
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
KaiSai TK9 Black Sleep monitoring
|
Smart Ring Vital Health Tracker with Charging Case Silver Comprehensive health monitoring
|
Anarow R10M Black All-day health monitoring
|
Anarow R10M Gold
|
Samsung SM-Q509NZKAXAR Black No app subscription required
|
Anarow R10M Silver Continuous heart rate monitoring
|
|
| Brand | KaiSai | VNEXFU | Anarow | Anarow | Samsung | Anarow |
| Model | TK9 | R10M | R10M | SM-Q509NZKAXAR | R10M | |
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| Price | $157.29 | $29.99 | $139.99 | $139.99 | $399.99 | $57.13 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 19, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 |
| Size | 6 | 8 | 9 | 9 | 9 | 8 |
| Weight | <num1>, <num2> | 99.22 | 99.22 | |||
| Material | Titanium Alloy | Titanium | Silicone | Titanium | ||
| Battery Life | 7–10 d | 3–5 d, 7–10 d standby | 7 d | 3–5 d, 7–10 d standby | ||
| Charging Time | <num_from>, <num_to> | 1 | 1 | |||
| Battery Capacity | <num1> | 400 | 400 | |||
| OS Compatibility | Android, iOS | Android, iOS | Android 5.1+, iOS 8+ | Android | Android 5.1+, iOS 8+ | |
| Water Resistance | IP68 | IP68 | 5ATM | 5ATM | IP68 | 5ATM |
