




The WHOOP Fitness Band 4.0 costs Rs 77,239 today, its lowest price in the last 46 days.
Last checked 6 Nov 2026, 12:35 am
Each shop's price at the end of each day, over the last 47 days.
Tap or hover over the chart to see every shop's price that day.
Understanding your health and fitness at this level has been impossible—until now. WHOOP measures the data that makes the biggest impact on your performance, from sleep to stress to strain and recovery. And no other wearable lets you try it before you buy it.
You’ll receive a WHOOP device, Onyx SuperKnit band, wireless & waterproof battery pack, and full app access. Try the only wearable that tracks the metrics that matter, and coaches you on ways to unlock your best.
01Sign up for Your Trial
Sign up today and we’ll prepare your new or expertly inspected pre-owned WHOOP 4.0 device, brand new SuperKnit band, and wireless battery pack for shipment.
02Download the WHOOP App
03Watch The Data Roll In
04Commit to Unlocking Your Best
During the first 4 days, your WHOOP will calibrate to your body’s unique biometric patterns. After your WHOOP has gotten to know you, you’ll start to receive personalized coaching and feedback about your sleep, strain, recovery, stress, and more.
WHOOP is designed by the world’s leading human performance experts and used by elite athletes, doctors, and more. It’s professional-grade technology designed for every day, and for every one, no matter where you are in your health journey.
WHOOP has a minimalist, screen-free design to help you focus when it matters most–without any pings, distractions, or unnecessary bells & whistles.
WHOOP also auto-detects activity, so you can ‘start and stop’ without tapping any screens.
WHOOP measures the metrics scientifically proven to make the most significant impact on your health. It also outperforms other leading wearables delivering over 99% heart rate and HRV tracking accuracy and gold-standard sleep tracking.
Performing every day requires an understanding of the relationship between your physical exertion, mental load, and your body’s ability to bounce back. From sleep to stress, and steps to recovery, WHOOP captures everything to coach you towards your best performance.
Improve recovery, boost your immune system, and make performance gains with better quality sleep. WHOOP measures all four types of sleep with lab-level accuracy, and will suggest optimal bedtimes based on what your body needs to recover.
PRESS
100% of members with a goal to improve their sleep agree that WHOOP is helping them reach their goal
01Track your sleep stages
WHOOP tracks all four stages of sleep — slow wave sleep (SWS), REM, light, and awake — with near-perfect accuracy. Each stage serves a different purpose in your recovery.
EXPLORE HOW
02Understand your sleep need
03Optimize your sleep performance
04Build your optimal sleep schedule
05View your sleep trends
STRAIN
Whether you’re out for a run, delivering a work presentation, or doing yard work, WHOOP measures all of the physical and mental demands put on your body. The result is a Strain Score that represents your body’s total daily exertion.
STRAIN
94% of members who set a training goal agree WHOOP helped them achieve it
01How we measure strain
WHOOP calculates the exertion you put on your body on a scale of 0 to 21. The score measures both cardiovascular and muscular load and can be affected by things like exercise, work, anxiety, running errands, parenting, and more. See strain for every activity, or for the whole day.
EXPLORE HOW
02Breakdown your activity details
04Build power with Strength Trainer
RECOVERY
The WHOOP Recovery Score measures how your body is adapting to the stresses of training, lack of sleep, illness, or your menstrual cycle. The more recovered you are, the more your body is signaling it’s ready to take on more. The less recovered you are, the more your body is telling you it’s best to take it easy.
RECOVERY
66% of members with a goal to improve their recovery saw higher average recovery scores
01How we calculate recovery
WHOOP calculates your recovery on a scale of 0 to 100% during your sleep, looking at your heart rate variability (HRV), resting heart rate, respiratory rate, SpO2, sleep performance, and skin temperature to see how your body is adapting to physiological and psychological stress. The biggest influence is by far your HRV but it also considers your health, behaviors, stress levels, hydration, and more.
02Know your body’s readiness
03See trends over time
WHOOP JOURNAL AND INSIGHTS
Input over 140 behaviors like caffeine consumption, morning sunlight, bluelight glasses, or nursing an infant into your personalized WHOOP Journal to see what habits specifically help and hurt your recovery.
WHOOP calculates the impact these behaviors have on your biometric trends to recommend which behaviors you should do more of to unlock your very best.
STRESS MONITOR
WHOOP is the only wearable that helps pinpoint your stressors with a real-time Stress Score. WHOOP also offers science-backed breathwork techniques to activate your parasympathetic response and feel instantly calmer.
01How we measure stress
Stress Monitor measures your heart rate and HRV in the moment as an indicator of your physiological response to stress. That reading is compared to your 14-day baseline to calculate a Stress Score between 0 and 3, taking into account any motion to distinguish known stressors, like exercise, from other stressors.
02How to manage your stress
03See trends over time
The WHOOP Health Monitor gives you a constant view of your key vitals like heart rate, blood oxygen, skin temperature, and more, so you can understand your baseline, get alerted when your metrics deviate, and share data with your healthcare team.
And you can influence our next big breakthrough. WHOOP Labs studies everything from the impact of menstrual cycles on fitness, circadian rhythm, to meditation—all day, every day in our very own dedicated lab in the heart of Boston.
The price of WHOOP Fitness Band 4.0 in Sri Lanka is Rs 77,239 at 1 shop.
37left.lk lists WHOOP Fitness Band 4.0 prices from 1 shop in Sri Lanka on one page.
WHOOP Fitness Band 4.0 is out of stock at every shop in Sri Lanka.
The lowest price today, Rs 77,239, is the lowest it has been in the last 46 days. It has stayed about the same over the last 30 days.