Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
B57 IP67 Fitness Tracker Fitness Tracker Smartwatch with Heart Rate and Blood Pressure Monitoring
Available Options
Current
IP67 Fitness Tracker
Alibaba
€9.66
Available to order
Features
- Heart rate monitoring
- Blood pressure monitoring
- IP67 water resistance rating
Product details
General specs
- Model: B57
- Model: B57
If you are interested in more details, you can find full information on the seller's page.
€9.66
Last price update: 9/22/26
Available to order
Shipping options
Delivery to 
United States
United States
Available
The B57 is a fitness tracker smartwatch with heart rate monitoring and blood pressure monitoring. Its stated water resistance rating is IP67.
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Fitness Tracker Smartwatch with Heart Rate and Blood Pressure Monitoring Heart rate monitoring
|
BRIM V11 Supplier-stated IP67 water resistance rating.
|
BRIM Karen M V11 IP67 water resistance rating.
|
Sport smartwatch fitness tracker Blood pressure monitoring
|
Smart Watch / Sports Bracelet Water resistance rating: IP67
|
Fitness Tracker / Smart Bracelet Watch IP68 water resistance rating
|
|
| Brand | BRIM | BRIM | KOSPET | |||
| Model | B57 | V11 | V11 | magic | CF18 | P70 |
| Color | ||||||
| Rating | ||||||
| Price | €9.66 | €15.71 | €15.28 | €11.41 | €13.87 | €21.75 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 | Sep 28, 2026 |
| Waterproof Rating | IP67 | IP67 | IP67 | IP67 | IP67 | |
Fitness Tracker Smartwatch with Heart Rate and Blood Pressure Monitoring Heart rate monitoring
€9.66
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.