22:00 – 05:59
Night
- Sleep0.22
- HRV0.20
- Temperature0.08
- Stress0.16
- Steps0.02
- Active Calories0.02
Sleep architecture and thermoregulation dominate overnight scoring.
§ 01 · Composition
One score. Ten weighted signals.
WVI is a weighted blend of ten sub-scores, each normalised to 0–100. The default weights sum to exactly 1.00.
0Sample WVI
- HRV0.16
- Stress0.14
- Sleep0.13
- Emotional Wellbeing0.12
- SpO₂0.08
- Heart Rate0.07
- Steps0.07
- Active Calories0.06
- Activity Load0.05
- Blood Pressure0.05
- Temperature0.04
- PPI Coherence0.03
Core signals
These four drive the majority of the score.
- HRV0.16
- Stress0.14
- Sleep0.13
Support signals
Physical readiness and oxygenation.
- Emotional Wellbeing0.12
- SpO₂0.08
Fine-tuning
Calibration layers against your personal baseline.
- Heart Rate0.07
- Steps0.07
- Active Calories0.06
- Activity Load0.05
- Blood Pressure0.05
- Temperature0.04
- PPI Coherence0.03
§ 02 · Adaptive
Same signals. Different day, different values.
The engine rebalances weights by time of day and exercise state. At night, recovery dominates. Morning: readiness takes over. During effort, oxygen and movement lead.
06:00 – 09:59
Morning
- HRV0.24
- Sleep0.18
- Stress0.15
- Steps0.04
HRV rebound and recovery readiness carry the morning readout.
10:00 – 17:59
Workday
- Stress0.20
- HRV0.18
- Steps0.10
- Active Calories0.08
- Activity Load0.08
Sympathetic load + movement dominate daytime scoring.
Any time, while training
Exercise override
- Activity Load0.12
- Active Calories0.10
- SpO₂0.12
- Heart Rate0.04
ACWR, calories and oxygenation take over; HR is down-weighted to avoid false penalties.
§ 03 · Levels
Seven bands. Dangerous → Superb.
Every WVI reading lands in one of seven levels. Each has a meaning — not just a colour.
90–100SuperbPeak state. Push, create, perform.
80–89ExcellentStrong reserves. Lean into the day.
65–79GoodSteady baseline. Maintain rhythm.
50–64ModerateMixed signals. Be intentional.
35–49LowConservation mode. Lighten load.
20–34PoorSystem strain. Prioritise recovery.
0–19DangerousWarning zone. Rest, hydrate, reassess.
§ 04 · Emotions
Eighteen states. Detected from biometrics alone.
The engine reads heart-rate variability, stress, pulse coherence, temperature and sleep. It picks a primary and secondary emotion every minute. Each emotion nudges WVI up or down.
positive7
+12%
Calm
positive
+15%
Relaxed
positive
+21%
Joyful
positive
+17%
Energized
positive
+14%
Focused
positive
+23%
Meditative
positive
+30%
Flow
positive
neutral1
+17%
Excited
neutral
negative6
-4%
Stressed
negative
-10%
Anxious
negative
-13%
Angry
negative
-6%
Frustrated
negative
-17%
Fearful
negative
-8%
Sad
negative
physiological4
+10%
Recovering
physiological
+3%
Drowsy
physiological
-20%
Exhausted
physiological
-15%
Pain
physiological
§ 05 · Detection
Three shapes. Every emotion built from them.
The engine does not classify you with a yes/no. It scores every candidate emotion with three fuzzy shapes ('more is better', 'less is better', 'bad on both sides'), then picks the one with the strongest fit.
More is better
sigmoidScore rises as the signal rises past the midpoint.
Used when a biometric is 'bad below, good above'. Example: HRV above 50 ms means better autonomic balance.
Less is better
sigmoid_invScore falls as the signal rises past the midpoint.
Used when lower values win. Example: stress index below 32 means calmer nervous system.
Bad on both sides
bellScore peaks at a target, drops if the signal is too low or too high.
Used for 'sweet spot' metrics. Example: heart rate about 10 bpm above resting is the flow-state zone.
§ 06 · Feedback
Emotions amplify. Up to +30%. Down to −20%.
When the engine picks a primary emotion, it applies a multiplier to the final WVI. Flow state and meditation boost your score. Exhaustion and fear dampen it. Magnitude scales with detection confidence.
Category
Multiplier
WVI effect
Flow
positive
×1.30
+30%
Meditative
positive
×1.23
+23%
Joyful
positive
×1.21
+21%
Energized
positive
×1.17
+17%
Excited
neutral
×1.17
+17%
Relaxed
positive
×1.15
+15%
Focused
positive
×1.14
+14%
Calm
positive
×1.12
+12%
Recovering
physiological
×1.10
+10%
Drowsy
physiological
×1.03
+3%
Stressed
negative
×0.96
-4%
Frustrated
negative
×0.94
-6%
Sad
negative
×0.92
-8%
Anxious
negative
×0.90
-10%
Angry
negative
×0.87
-13%
Pain
physiological
×0.85
-15%
Fearful
negative
×0.83
-17%
Exhausted
physiological
×0.80
-20%
| Emotion | Category | Multiplier | WVI effect |
|---|---|---|---|
| Flow | positive | ×1.30 | +30% |
| Meditative | positive | ×1.23 | +23% |
| Joyful | positive | ×1.21 | +21% |
| Energized | positive | ×1.17 | +17% |
| Excited | neutral | ×1.17 | +17% |
| Relaxed | positive | ×1.15 | +15% |
| Focused | positive | ×1.14 | +14% |
| Calm | positive | ×1.12 | +12% |
| Recovering | physiological | ×1.10 | +10% |
| Drowsy | physiological | ×1.03 | +3% |
| Stressed | negative | ×0.96 | -4% |
| Frustrated | negative | ×0.94 | -6% |
| Sad | negative | ×0.92 | -8% |
| Anxious | negative | ×0.90 | -10% |
| Angry | negative | ×0.87 | -13% |
| Pain | physiological | ×0.85 | -15% |
| Fearful | negative | ×0.83 | -17% |
| Exhausted | physiological | ×0.80 | -20% |
§ 07 · Smoothing
The engine is patient. It doesn’t flip every 30 seconds.
Inside a 5-minute window, the engine refuses to change the active emotion unless a new candidate scores at least 30% higher. This kills noise and false positives.
- T + 0 s
Active: Focused
Confidence 0.62. HRV stable, low activity, coherent pulse.
- T + 90 s
Challenger: Stressed (0.55)
Below the 30% advantage. Focused still wins.
- T + 180 s
Challenger: Anxious (0.68)
0.68 ÷ 0.62 = 1.10. Still under the 1.30 threshold.
- T + 260 s
Challenger: Anxious (0.85)
0.85 ÷ 0.62 = 1.37. Crosses 1.30. State flips.
- T + 300 s
Window resets
After five minutes the engine starts fresh. New candidates compete from zero.
§ 08 · Activity
64 activities. Grouped into 12 categories.
Beyond biometric state, the engine classifies what you are doing. Recovery, sleep, strength, mental effort each land on a different adaptive profile. A WVI of 72 after a deep-work session means something different than a 72 after a sprint workout.
Sleep
5- deep
- light
- REM
- nap
- falling asleep
Rest
7- resting
- sitting relaxed
- sitting working
- standing
- lying awake
- phone scrolling
- watching screen
Walking
5- stroll
- normal
- brisk
- hiking
- nordic walking
Running
5- jogging
- tempo
- interval
- sprinting
- trail
Cardio machine
4- cycling
- stationary bike
- elliptical
- rowing
Strength
5- weight training
- bodyweight
- CrossFit
- HIIT
- circuit
Mind-body
5- vinyasa yoga
- hot yoga
- pilates
- stretching
- meditation
Sports
7- football
- basketball
- tennis
- badminton
- swimming
- martial arts
- dancing
Daily
6- housework
- cooking
- driving
- commuting
- shopping
- eating
Physiological
7- stress event
- panic attack
- crying
- laughing
- pain
- illness
- intimacy
Recovery
4- warm-up
- cool-down
- active recovery
- passive recovery
Mental
4- deep work
- presentation
- exam
- creative flow
Other wearables
Collect everything.
They store terabytes, graph every signal, and leave you to interpret the mess. You still don’t know what to do tomorrow morning.
Wellex
Compresses it into one answer.
Twelve metrics. Eighteen emotions. Sixty-four activities. Weighted, smoothed, compressed into one number and one direction you can act on.