Amazon KEREEP  
KEREEP Smart Ring, Wearable Fitness Sleep Tracker for Men Women, Support 6-7 Days Battery Life - Your Healthy Assistant, Size 10
SMART RING FOR YOUR DAILY READINESS - Measure your fingers before buying. Smart Ring Health Tracker data can easily track your sleep, activity, body temperature and more through the mobile app without any subscription fees. Data is updated every 6 months, please update to the latest firmware version.
YOUR INSTANT HEALTH ASSISTANT - Years of deep cultivation of smart wearable technology, KEREEP Smart Ring with built-in the latest chip, using the latest instant capture technology to provide accurate vital signs data. Continuously improve the product based on 20,000+ users' experience. For sports or aviation use only, not for medical use.
SENSELESS WEARING FOR EASY SLEEP - Don't like wearing a watch to bed? You deserve one smart ring. Made of lightweight, skin-friendly, high-strength titanium, barely felt but durable. Provide you with monthly/weekly/daily reports of various sleep stages, such as deep sleep, REM sleep, light sleep and awake, targeted to improve your sleep quality.
IPX8 & WIDELY COMPATIBLE - Water-resistant to 330 feet, our smart ring is not afraid to swim and can be worn in the shower. The smart ring supports Android 5.0 and iOS 10.0 and above. Currently only supports synchronizing your health data with Google fit, technicians are working on seamless integration with more apps.
1 HOUR CHARGE, 7 DAYS BATTERY LIFE - Truly wireless charging technology that takes only 1 hour to charge and lasts up to 7 days. Supports adding different groups and member accounts to share health data reports with family and friends. Ideal gift for birthday, Valentine's Day, Mother's Day, Father's Day, Thanksgiving, Christmas or New Year.
KEREEP Smart Ring, Wearable Fitness Sleep Tracker for Men Women, Support 6-7 Day
Amazon Garmin  
Garmin Forerunner 265S Running Smartwatch, Colorful AMOLED Display, Training Metrics and Recovery Insights, Whitestone and Neo Tropic 42 mm
Brilliant AMOLED touchscreen display with traditional button controls; lightweight design in 42 mm for smaller wrists
Up to 15 days of battery life in smartwatch mode and up to 24 hours in GPS mode
As soon as you wake up, get your morning report with an overview of your sleep, recovery and training outlook alongside HRV status, training readiness and weather (data presented is intended to be a close estimation of metrics tracked)
Plan race strategy with personalized daily suggested workouts based on the race and course that you input into the Garmin Connect app and then view the race widget on your watch; daily suggested workouts adapt after every run to match performance and recovery
Training readiness score is based on sleep quality, recovery, training load and HRV status to determine if you’re primed to go hard and get the most out of your workout (data presented is intended to be a close estimation of metrics tracked)
30 plus built-in activity profiles include running, triathlons, cycling, open-water swimming and more
Using indicators such as HRV status, recent exercise history and performance, get insight into overall effort with training status — and know whether you’re training productively, peaking or strained (data presented is intended to be a close estimation of metrics tracked)
Safety and tracking features, including incident detection (during select outdoor activities) and Assistance, send a message with your live location to emergency contacts when paired with your compatible smartphone; requires setup and your smartphone to be in an area with network coverage where data connectivity is available
Multi-band GNSS with SatIQ technology provides superior positioning accuracy in challenging environments while also optimizing the device’s battery life
Never miss a call or text from your paired Android or Apple smartphon
Garmin Forerunner 265S Running Smartwatch, Colorful AMOLED Display, Training Met
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