Smart Bracelet, Subscription-Free 24/7 Health Tracking, Heart Rate, SpO2, HRV & Sleep Tracker with IPX8 Waterproof, Wearable Activity & Fitness Tracker, 7-Day Battery, 2 Bands (Black)
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- – 6-month term
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Wednesday, Apr 15
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Color: Black
Features
- Precision Health Tracking, No Monthly Fees: Get accurate, continuous monitoring of your heart rate, HRV, SpO2, and stress levels without the hidden costs or mandatory subscriptions common with other premium trackers. During intermittent fasting, you can closely monitor your heart rate and stress levels to understand the physiological responses during this specific dietary adjustment phase, thereby avoiding harm caused by extreme eating behaviors.
- Enhanced Sleep & Female Health Insights: Our advanced sensor reliably tracks deep, light, and REM sleep cycles. It reveals how afternoon coffee and alcohol affects sleep quality, helping you adjust your schedule based on data to achieve ultimate precision and efficiency in managing your physical metrics. Effortlessly track your menstrual cycle, continuously monitor resting heart rate, and effectively alleviate physiological anxiety during pregnancy for peace of mind.
- Dynamic Fitness & Path Tracking: Seamlessly track your workouts with 12 dedicated sports modes, including running, cycling, and yoga. Our built-in tracker accurately maps outdoor activities, eliminating the need for your phone to estimate distances or relying on inconsistent auto-detection. For athletes seeking to enhance athletic performance and physical recovery, smart fitness trackers can help optimize training plans through data quantification and prevent overtraining.
- Waterproof Durability & Extended Battery: Dive into your fitness routine worry-free with an IPX8 waterproof rating, perfect for swimming laps or showering. Experience true freedom from daily charging with a reliable 7-day battery life, so your tracker is always ready when you are, unlike devices that die unexpectedly. This tracker features a compact 0.7-inch display and the screen only displays the time. It's ideal for seeking a distraction-free lifestyle.
- Ultimate Comfort & Style with Interchangeable Bands: Say goodbye to bulky, itchy, or ill-fitting bands. Our lightweight, minimalist design comes with two premium interchangeable strapsa sleek Zinc Alloy for everyday elegance and a comfortable Silicone for intense workoutsensuring a perfect fit without skin irritation or constant adjustments.
- Give the Gift of Peace of Mind: This "Digital Health Assistant" provides 24/7 vitalsideal for heart surgery recovery, hypertension, or pregnancy safety. Its a guardian for elderly parents, letting you remotely track BP and activity to ensure safety from afar. For office workers, real-time stress and sleep insights help conquer sub-health and anxiety. Simple, stylish, and life-savingthe perfect gesture for those you care about most.
- Ultra-slim, protecting your whole family: The B8 Smart Band features an ultra-slim body, measuring just 2.8 mm thick.It utilizes Bluetooth 5.3 connectivity technology, allowing you to remotely control your phone's camera to take photos with a simple wrist flick. Its lightweight, minimalist design seamlessly integrates into your daily life. You can share health data with family members via the NX Wear app, keeping you informed about their well-being at all times.
Operating System: NX Wear
Special Feature: Activity Tracker, Bluetooth 5.3 Chip, Dial thickness 2.8 mm, IPX8 Waterproof, Multisport Tracker
Battery Capacity: 33 Milliamp Hours
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Ion
GPS: GPS Via Smartphone
Shape: Rectangular
Screen Size: 0.7 Inches
Brand: CCHEEN
Operating System: NX Wear
Additional Features: Activity Tracker, Bluetooth 5.3 Chip, Dial thickness 2.8 mm, IPX8 Waterproof, Multisport Tracker
GPS Geotagging Functionality: GPS Via Smartphone
Water Resistance Level: Waterproof
Clasp Type: Hidden Clasp
Supported Application: NX Wear
Water Resistance Depth: 10 Meters
Language: English
Shape: Rectangular
Style Name: Minimalist
Color: Black
Battery Capacity: 33 Milliamp Hours
Battery Cell Type: Lithium Ion
Screen Size: 0.7 Inches
Item Weight: 142 Grams
Brand: CCHEEN
Model Name: B8
Target Audience: Unisex Adults
Model Number: B8
Built-In Media: Charging Cable, Instruction Manual, Silicone Band, Zinc Alloy Band
Wearable Computer Type: Activity Tracker
Manufacturer: CCHEEN
Warranty Description: 3 Year Manufacturer
Connectivity Technology: Bluetooth
Wireless Compability: Bluetooth
Compatible Devices: Smartphone
Compatible Phone Models: Android Devices, iOS Devices
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 15
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Color: Black
I’m honestly so impressed with this smart bracelet! It has everything I was looking for in a fitness tracker without the hassle of paying for a subscription. The 24/7 health tracking is incredibly helpful. I love being able to monitor my heart rate, SpO2, HRV, and sleep all in one place. The sleep tracking is surprisingly detailed and has helped me better understand my habits, and the activity tracking keeps me motivated throughout the day. It’s also super comfortable to wear, and I appreciate that it comes with two bands so I can switch up the look. The battery life is a huge win it easily lasts close to a full week, which makes it perfect for everyday use without constantly worrying about charging. Plus, the waterproof feature gives me peace of mind when I’m washing hands or caught in the rain. Overall, this is an amazing value for the price. If you want a reliable, easy-to-use fitness tracker with no hidden fees, this is definitely the one to get!
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Reviewed in the United States on April 6, 2026 by Andreina Paque
Color: Black
The media could not be loaded. I really liked this smart bracelet. It’s lightweight, comfortable, and looks nice on the wrist—not bulky at all. I’ve been using it every day and it works very well for tracking activity, sleep, and heart rate. The battery lasts quite a long time, which is a big plus since I don’t have to charge it constantly. It’s also easy to use and connect to the phone.For the price, I feel like it offers more than I expected. A great option if you want something practical for everyday
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Reviewed in the United States on April 7, 2026 by Daniel Ferrin
Color: Silver
This smart bracelet offers a clean and straightforward approach to health tracking without requiring any ongoing subscription. It provides continuous monitoring for metrics like heart rate, SpO2, HRV, and sleep, making it a practical option for those who want basic insights into daily wellness without extra costs. The design is lightweight and minimal, which makes it comfortable to wear throughout the day and even overnight. The slim profile doesn’t feel bulky, and the included interchangeable bands make it easy to switch between a more casual or slightly more polished look depending on the situation. Tracking features cover the essentials well. It monitors activity, supports multiple workout modes, and provides general data that can help you stay aware of your daily habits. Sleep tracking gives a useful breakdown of rest patterns, which can be helpful for building a more consistent routine over time. Battery life is another strong point, lasting several days on a single charge, so there’s no need to recharge constantly. The waterproof design also adds flexibility, allowing it to be worn during workouts, in the rain, or even while showering. The display is intentionally simple, mainly showing core information like time, which keeps distractions to a minimum. While it doesn’t offer the advanced interface or app ecosystem of more premium devices, it stays focused on delivering essential tracking in an easy-to-use format. For those looking for a lightweight, low-maintenance fitness tracker that covers the basics without added fees or complexity, this smart bracelet is a practical and user-friendly choice.
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Reviewed in the United States on March 26, 2026 by Rhonin
Color: Silver
I really like this smart bracelet because it helps me understand my health in a simple and easy way, and I do not need to pay any monthly fees which makes it a great value for the price. It tracks my heart rate, stress, sleep, and other important things all day and night, and the information feels accurate and useful for daily life. I like how it shows different sleep stages because it helps me see how my habits affect my rest, and it makes me want to improve my routine. The fitness tracking is also very good because it can follow different activities like walking and exercise, and it gives helpful data that makes workouts better. The bracelet is very light and comfortable, and it comes with two bands so I can change the style depending on what I am doing, which is very nice. It is also strong and waterproof, so I do not worry about using it in the rain or while washing hands, and it feels durable enough for everyday use. The battery lasts a long time, so I do not need to charge it often, which is very convenient. It is very easy to use because everything is simple to understand, and connecting it to the app was quick and smooth. I also like that I can share health information with family, which makes it feel more safe and caring. Overall, this bracelet is very useful, easy to use, comfortable, and gives a lot of helpful features for a good price, making it a great choice for anyone who wants to take better care of their health.
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Reviewed in the United States on March 22, 2026 by Kate
Color: Silver
This smart bracelet is a simple, no-fuss fitness tracker. It tracks heart rate, blood oxygen, HRV, and sleep without needing any monthly subscription. Everything is free to use in the app. It's lightweight and comfortable to wear all day and night. The IPX8 waterproof rating means you can wear it in the shower or while swimming without worry. The battery lasts about 7 days on a full charge, which is nice. It comes with two bands, so you can swap colors or have a spare. The display is clear and easy to read, even in sunlight. The app pairs easily and shows your data in a simple layout. It tracks steps, calories, and activity, but it's not as detailed as more expensive fitness watches. For basic health and activity tracking without paying a monthly fee, it's a great value. It does what it promises and does it well. If you want something simple, affordable, and subscription-free, this bracelet is a solid choice.
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Reviewed in the United States on April 6, 2026 by AmazonCustomer
Color: Black
Not a very good appliance to keep track of sleep. I sleep 8 hours and this tells me I slept 3. It does keep track of steps but the calendar is not set to correct day and there is no way to correct this. Heart rate and O2 seem to be watched accurately. This is very small and lightweight. Happy it came with a sports band but a cheap one. I put another on it (it take a 16mm band by the way). All in all it is just OK but for the money and no subscription fee it is worth it.
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Reviewed in the United States on April 2, 2026 by M.Cass