Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
If you are interested in more details, you can find full information on the seller's page.
Model W4 is a smart watch / smart bracelet listed with waterproof construction and Bluetooth connectivity.
Suitable for men and women.
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
|
Smart watch with heart rate monitor, pedometer and fitness tracking Heart rate monitor
|
SYYTECH Z02 Heart rate monitoring
|
Fitness Tracker with Heart Rate Monitor Heart rate monitor
|
Waterproof Smartwatch with Heart Rate Monitor and Fitness Tracker Waterproof
|
Smartwatch with Heart Rate and Blood Pressure Monitoring Heart rate monitoring
|
Fitness tracker Water resistance: Waterproof
|
|
| Model | W4 | Z02 | B57 | W68 | Wearfit 2.0 | |
| Price | £8.33 | £10.59 | £14.38 | £8.78 | £14.76 | £10.07 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | |||
| Product Type | Smart Watch, Smart Bracelet | Smart Watch, Smart Bracelet | Fitness Tracker, Activity Tracker Watch, Sports Smart Bracelet | Smart Watch | Smartwatch, Smart Wristband Watch | Fitness Tracker, Smart Bracelet, Smart Watch |
| Water Resistance | Waterproof | Waterproof | Waterproof | Waterproof | Waterproof | |
| Heart Rate Monitoring | Heart Rate Monitor | Heart Rate | Heart Rate | |||
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.