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PNNDSST Smart Health Ring for Women Men, Smart Ring Fitness Tracker for iOS Android, Heart Rate, Blood Oxygen, Blood Pressure, Sleep Monitoring,5ATM Waterproof, No Subscription Fee (Silver, 10#)
Brand: PNNDSST
Condition: Used
$2380
$3599
-34% Save $1219
Updated: 10 hours 28 mins ago
Description
1.CONFIRM SIZE BEFORE PURCHASING: Before purchasing your PNNDSST smart ring, we strongly recommend that you refer to the size chart and carefully measure the circumference of your finger. This will ensure you get the most comfortable wearing experience and easily avoid any unnecessary returns.
2.Full day monitoring function: This new smart ring from 2025 can track health indicators throughout the day. It supports precise measurement of blood oxygen, heart rate, and sleep monitoring, helping you to have a more accurate understanding of your physical condition. The design of LED display screen allows you to keep track of heart rate, step count and other data at any time without opening your phone, cultivating healthy lifestyle habits
3.REAL-TIME ACCURATE SLEEP & MOVEMENT MONITORING: The PNNDSST smart ring tracks your sleep quality and daily activities in real time. Built-in high sensitivity sensor, it can accurately monitor your sleep quality and record the length of deep and light sleep in detail. It also supports a variety of exercise modes, including walking, running, cycling, yoga, etc., and the smart ring can provide real-time data to help you monitor your progress, set goals, and make your workouts more scientific and effective.
4.Smart Gesture Control: this smart ring has a built-in motion gesture function, as long as you wear the ring you can control your cell phone through specific gestures, browse short videos, flip through e-books, take photos remotely, etc., experience the fun of touchless interaction.
5.【Fast Charging, Wide Compatibility】The smart ring comes with a portable charging case and can be charged via a magnetic USB cable or the charging case itself. A full charge takes just 2 hours, providing 3 to 5 days of battery life (frequent screen activation will drain the battery faster). Compatible with smartphones running Android 6.0 or iOS 11.0 and above.
6.No subscription fee, lifetime free trial: With the PNNDSST smart ring, you can use all the functions of the smart health monitoring application for free for life without paying any subscription fees. Easily help you improve your overall health status. It is also the best gift to give to family and friends.
Accessories in the box: smart ring, charging cable, charging compartment, instructions
Color: Gold, Black, Silver Product weight: 4 grams
Function: Heart rate, blood oxygen, blood pressure monitoring, remote control photography, multiple exercise modes, sleep monitoring
PNNDSST Smart Ring Keeps an Eye on Your Health
The PNNDSST Smart Ring is 5ATM rated waterproof, so whether you're washing your hands, taking a shower, or scuba diving you can be sure that it will work without worrying about compromising its functionality.
Equipped with wireless charging compartment, long battery life, all-day use with peace of mind
Color: Gold, Black, Silver Product weight: 4 grams
Function: Heart rate, blood oxygen, blood pressure monitoring, remote control photography, multiple exercise modes, sleep monitoring
PNNDSST Smart Ring Keeps an Eye on Your Health
The PNNDSST Smart Ring is 5ATM rated waterproof, so whether you're washing your hands, taking a shower, or scuba diving you can be sure that it will work without worrying about compromising its functionality.
Equipped with wireless charging compartment, long battery life, all-day use with peace of mind
Sold by
Amazon Warehouse
Official Amazon outlet for open-box & returned items
- Backed by Amazon's A-to-Z Guarantee
- 30-day return policy
- Ships from Amazon fulfillment centers
- Price verified on Amazon
Product Details
- SKU:
- awhd-us-b0fjl88ryv
- Model:
- B0FJL88RYV
- Country:
- US
- ASIN:
- B0FJL88RYV
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $12 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for PNNDSST products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.