Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
Coucur Y66 Y66 Fitness Tracker Running Watch
Features
- Answer and make calls with Bluetooth 5.3
- 24/7 health monitoring including heart rate and sleep
- 110+ sports modes with real-time data tracking
- IP68 waterproof for swimming and sweating
- 1.96-inch HD touch screen with 200+ watch faces
- Long battery life up to 7 days use
General specs
- Brand: Coucur
- Model: Y66
- Seller: Retailer
- ID: B0FWQX51GV
- GPS: None
- Battery Life: 7
- Connectivity: Bluetooth
- Display Size: 1.96
- Display Type: HD
- Sports Modes: 110
- Standby Time: 30
- OS Compatibility: Android, iOS
- Water Resistance: IP68
- Bluetooth Version: 5.3
- First listed by seller: January 16, 2026
If you are interested in more details, you can find full information on the seller's page.
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Shipping options
Delivery to 
United States
United States
Available
This smartwatch is for the active person who wants to stay connected without being glued to their phone. Whether you're on a morning run or in a meeting, it lets you handle calls and notifications discreetly. The two-way audio works clearly, so you can answer a call from your wrist without fumbling for your phone—it's perfect for when your hands are full or you're mid-workout.
Beyond basic tracking, it acts as a personal health companion. The heart rate monitor doesn't just log numbers; it helps you spot trends in your stress levels throughout the week, encouraging healthier habits. With over 110 sport modes, it adapts to any activity, from hiking to swimming, thanks to its IP68 waterproof design. The long battery life means you can wear it for days without worrying about charging, making it a reliable part of your daily routine.
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ISKOVI W03 Black
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| Brand | Coucur | DUSONLAP | Fempoin | Soudorv | Coucur | ISKOVI |
| Model | Y66 | MT65 | Y66 | T70 | Y66 | W03 |
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| Price | €14.27 | €13.38 | €10.70 | €21.41 | €44.62 | €20.36 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 18, 2026 | Mar 21, 2026 | May 8, 2026 | May 14, 2026 | Mar 18, 2026 | Apr 20, 2026 |
| GPS | None | None | None | Built-in | None | |
| Battery Life | 7 | 7 | 5, 7 | 5, 7 | 7 | |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth |
| Display Size | 1.96 | 1.85 | 1.96 | 1.91 | 1.83 | 1.91 |
| Display Type | HD | AMOLED | AMOLED | TFT | HD Touchscreen | TFT |
| Sports Modes | 110 | 110 | 112 | 110 | 120 | 120 |
| Standby Time | 30 | 30 | 30 | 30 | 30 | |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS |
| Water Resistance | IP68 | IP68 | IP68 | IP68 | IP68 | IP68 |
| Bluetooth Version | 5.3 | 5.3 | 5.0 | 5.3 | 5.3 | |
| Health Sensors | Heart Rate | Heart Rate | Heart Rate | |||
When this device makes sense
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