Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
B57 Bluetooth with 24-Hour Heart Rate Monitoring Smart watch
Available offers (7)
Current
Bluetooth with 24-Hour Heart Rate Monitoring
Alibaba
RUB 1,011.05
Available to order
Features
- Supplier-stated 24hrs heart rate monitoring
- Bluetooth connectivity
- Supplier-stated IP67 waterproof rating
General specs
- Model: B57
- Seller: Alibaba
- ID: 62292921983
- Model: B57
- Connectivity: bluetooth
- Heart Rate Monitoring: 24hrs
- Water Resistance Rating: IP67
- First listed by seller: September 22, 2026
If you are interested in more details, you can find full information on the seller's page.
RUB 1,011.05
Last price update: 9/22/26
Available to order
Shipping options
Delivery to 
Russia
Russia
Available
Model B57 smart watch with Bluetooth connectivity, an IP67 waterproof rating, and 24-hour heart rate monitoring.
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart watch Supplier-stated 24hrs heart rate monitoring
|
Smartwatch with Heart Rate Monitor Compatible with Android
|
Smart Watch / Sports Bracelet Water resistance rating: IP67
|
SYYTECH Z02 Heart rate monitoring
|
DT NO.1 DT88 Heart rate monitor
|
Sports Watch Smart Bracelet Supplier states an IP67 waterproof rating.
|
|
| Model | B57 | B57 | CF18 | Z02 | DT88 | |
| Price | RUB 1,011.05 | RUB 946.86 | RUB 1,267.83 | RUB 1,122.59 | RUB 1,765.33 | RUB 1,853.60 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 |
| Heart Rate Monitoring | 24hrs | Heart Rate Monitor | Heart Rate Monitor | Heart Rate | ||
| Product Type | Smart Watch, Sports Bracelet | Smart Watch, Smart Bracelet | Smartwatch | Sports Watch, Smart Bracelet | ||
Smart watch Supplier-stated 24hrs heart rate monitoring
RUB 1,011.05
When this device makes sense
Product confidence
Reviews
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.