Technology — Synox

💚

Recovery

A daily readiness score from HRV, resting HR, sleep and the load you've banked — so you know whether to push or rest.

🌙

Sleep

Full sleep-stage breakdown, consistency and the nightly vitals that drive tomorrow's recovery.

🔥

Strain & load

Live heart-rate zones and a training-load model that keeps you between progress and burnout.

🫀

Cardio fitness

VO₂max and heart-rate recovery, rated for your age and sex — your form, trending over the season.

🩺

Body & health

Blood pressure, body composition, nutrition, hydration and cycle — with honest, educational guidance.

🍎

Apple Health native

Reads the metrics your Apple Watch already records; averages WHOOP & Oura when you connect them.

AI coach

Ask your body anything.

Synox's coach reads your real metrics and answers in plain language — no charts to decode.

› "Why am I tired today?" — grounded in HRV, sleep and load.
› "Am I overtraining?" — fatigue modelling that looks days ahead.
› "What should I do today?" — one clear, actionable answer.
› Plans your training week and drops it into your calendar.

Coach

Today

Recovery is low — keep it easy. Zone-2 40 min.

Why

HRV −18% vs baseline, sleep 5h50.

Heads-up

Overtraining risk in ~3 days at this load.

Goals & habits

Set your goals. We keep you on them.

Targets for steps, sleep, hydration, calories, weight or training — with flexible ranges, not rigid rules.

› Progress bars on your home screen from real data.
› Forgiving streaks with a weekly freeze.
› XP, levels and a medal collection.
› Reminders that nudge, celebrations when you hit a goal.

My goals

Steps

8,240 / 8,000

Sleep

6.2 / 7.0 h

Hydration

1.6 / 2.5 L

Numbers are easy.
Synox tells you what to do.

Recovery

Sleep

Strain & load

Cardio fitness

Body & health

Apple Health native

Ask your body anything.

Set your goals. We keep you on them.

See it on your own data.