Kalsten | Smart Bracelet Blood Pressure Monitor - ECG, Heart Rate, Oxygen Saturation & Sleep Tracker - FDA approved
This advanced smartwatch is loaded with features tailored to suit your modern lifestyle. With immediate EKG evaluations and continuous heart rate and blood pressure monitoring, you can stay aware of your health. Additionally, it provides comprehensive HRV and EKG insights, supported by a detailed analysis using the Lorenz scatter plot.
The device includes a specialized cycle tracker designed to meet women’s health needs. By receiving notifications from platforms like Facebook, WeChat, and others, you can stay connected and access important alerts effortlessly!

This smartwatch is constructed from high-quality silicone, ensuring remarkable comfort and long-lasting performance. The flexible and sturdy band fits your wrist perfectly, providing a pleasant wearing experience throughout the day.

With features such as to-do lists, reminders, sleep and activity monitoring, and more, this smartwatch is an ideal companion for those looking to blend innovative technology with outstanding comfort.
Specifications:
- Battery: 130 mAh (included)
- Standby time: 10 days
- Waterproof rating: IP67.
- Compatible operating systems: Android 4.4 and above, iOS 8.0 and above
- Bluetooth version: 4.0
- Heart rate monitoring: Yes
- Blood pressure tracking: Yes
- EKG tracking: Yes
- Functionality: EKG superconductive powder metallurgy electrode
- Charging method: Direct USB plug charging

This smartwatch provides heart rate tracking, water resistance, and a variety of features.
The approximate dimensions of the smartwatch are 25 cm x 1.9 cm x 1.25 cm (9.84" x 0.75" x 0.49").
Wristband length: approximately 15-16 cm/5.91"-6.3"
Free standard shipping on all orders. No minimum purchase.
- Ships to: United States
- Processing: 1–4 business days (Mon–Fri)
- Transit: 5–10 business days
- Total delivery time: 6–14 business days
- Order cut-off: 5:00 PM PST
You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.
See our full Shipping Policy.
You have 14 days from delivery to request a return.
- Email support@open.shop with your order number to start a return.
- Items must be unused, complete, and in their original packaging.
- Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
- Damaged, defective or incorrect items: we cover all return and replacement costs.
- No restocking fees.
- Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
- Refunds are issued within 7 business days of inspection.
See our full Return Policy.
Questions about your order or our products? We're happy to help.
Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands
Email: support@open.shop
Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)
We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.
For quick answers, visit our FAQ page or use our Contact Form.