Features/Activity & Energy

Want better Health? Get engaged with your Energy levels

Migliora i tuoi livelli di energia e il tuo sistema immunitario come mai prima d'ora grazie a un monitoraggio sofisticato, intuizioni facili da leggere e raccomandazioni sempre pertinenti.

EnergyRing 78%
Today 84energy score
Ready to train
Kira

Energy is high today. Good day for a run, if you want one.

HRV +12 msSlept 7h 33m
One day, as the ring saw it

Energy is spent across a day, not in a workout.

Movement intensity · 06:00 to 23:00

11,480steps

Minuti attivi

68

Calories

2,410

Punti cardio

42

VO₂ max

48

06:0010:0014:0018:0023:00
Everyday movement Run, detected automatically · 8.4 km Recovery windows

Nothing was started by hand. The run at 18:10 was recognised on its own, priced against the morning's energy score, and folded into the day's load.

Why it matters

Uno strumento potente per decisioni più intelligenti

Your energy levels aren't just about how you feel; it's about what's happening inside your body and mind as it adapts to daily stressors before you feel it. Circular gives you quantified metrics, so you make informed decisions each day.

82Move
64Zones
93Steps

Three daily targets, set from your own history rather than a round number someone picked.

Three parts to the score

Unisciti alla rivoluzione del fitness

84out of 100

Aumenta i tuoi livelli di energia

Il punteggio Energia è il risultato principale che rivela quanta energia hai accumulato per la giornata. È composto da vari marcatori notturni e diurni che ti permettono di valutare il tuo grado di vitalità e di sapere ogni mattina se puoi superare te stesso o se sarebbe meglio evitare attività intense e concentrarti sul riposo.

Sonnohigh
HRVhigh
Resting HRmid
Activity loadmid
Temperaturalow

Dati affidabili

Circular calcola i tuoi livelli di energia basandosi su molti fattori fisiologici: attività fisica, sonno, variabilità della frequenza cardiaca (HRV), frequenza cardiaca a riposo (RHR), variazione della temperatura, saturazione di ossigeno nel sangue e frequenza respiratoria. Tutti questi valori sono calibrati sul tuo livello di base, quindi il tuo punteggio è strettamente personalizzato.

Zone 1 · 6 min
Zone 2 · 11 min
Zone 3 · 18 min
Zone 4 · 6 min
Zone 5 · 0 min

Allenamento data driven

Getting the most out of training doesn't always require working harder: it requires working smarter. Quantify your physical activities and optimize your effort with heart rate training range.

How to read it

What each training zone is actually for.

Zones are set from your own maximum and resting heart rate, so the same run lands differently for two people — as it should.

Zone 1

Very light. Warm-up, cool-down, and the walking that fills most days.

Zone 2

Conversational. Builds the aerobic base most people are short of.

Zone 3

Steady effort. Where most runs and rides actually sit.

Zone 4

Threshold. Hard, sustainable for a while, expensive to recover from.

Zone 5

Maximum. Short intervals only — and the ring will price it tomorrow.

The science

Supportato dalla Scienza

La variabilità della frequenza cardiaca (HRV), la frequenza cardiaca a riposo (RHR), la saturazione di ossigeno nel sangue e la frequenza respiratoria sono molto discusse al giorno d'oggi. Sono utilizzate dagli atleti per ottimizzare il loro allenamento e da professionisti e individui che vogliono controllare il loro stato di salute generale. Sono studiate a livello globale per la loro correlazione con il nostro sistema nervoso autonomo e lo stress. La HRV è una metrica potente e affidabile che Circular può monitorare con facilità.

  • MeasuredHeart rate, HRV, SpO₂, breathing rate, skin temperature, motion.
  • DerivedEnergy score, activity load, training zones, VO₂ max estimate, cardio points.
  • PersonalEvery threshold comes from your own two-week calibration, then keeps updating.
  • WhereThe finger, where arteries sit closer to the surface than at the wrist.
  • WhenContinuously, including in the shower and the pool.
Pensato per l'uso quotidiano

The effect of your sleep on your energy and the effect of your activities on your sleep

By wearing Circular 24/7, you'll get feedback on every moment of the day. Kira will reveal how your body is responding to things like physical activity, rest, stress, travel, and work, so you can find the right balance and make smarter decisions when it comes to recovery or training.

Last night sets today's ceiling

Deep sleep, HRV and resting heart rate decide how much load today can absorb — which is why the energy score arrives with the morning, before you have done anything.

Today sets tonight's target

A hard session moves your wind-down earlier and raises the sleep you need. The ring says so in the evening rather than in hindsight.

The routine

Biohackera la tua strada verso il guadagno energetico

Make the most of your day by improving your energy

1

Track your energy levels each day and trends over time.

2

Understand your body and learn about the parameters that positively or negatively impact your energy levels and how it correlates with your sleep & activities.

3

Build better habits for better performance.

Questions

Before you train with it.

More in the help centre.

Walking, running, cycling and swimming are recognised without pressing anything. Anything else can be logged by hand, and the ring still counts the heart-rate cost.

Yes, though a barbell against titanium is hard on any ring. Many people move it to the other hand or take it off for heavy sets — the day's data closes the gap from heart rate either side.

It is recovery expressed as something usable: what you have available today, drawn from last night's sleep, your HRV, resting heart rate, temperature and the load you have been carrying.

Yes. Swims are detected, and the ring is made to be worn in water — showers, baths and swimming included.

It is an estimate from heart-rate response to known effort, useful as a trend rather than a lab number. Watch the direction over months, not the digit.

No. Activity, zones, VO₂ max, the energy score and Kira's recommendations are included with the ring, permanently.

Seguente

Anche il modo in cui dormi ha un grande impatto sulla tua energia

Learn how
Man on stone steps wearing the Circular Ring 2 in gold titanium
Conosci te stesso. Il cerchio si chiude.

Start with one day.

Wear it tomorrow and read what the day actually cost you.

Buy now Get a sizing kit
Man on stone steps wearing the Circular Ring 2 in gold titanium
Conosci te stesso. Il cerchio si chiude.

Start with one day.

Wear it tomorrow and read what the day actually cost you.