SSPARRA
The S1, your best allyfor everyday life
No subscription · 10 days of battery · 3 ATM waterproof
Discover the S1
Your heart is the engine.
The S1 is your dashboard.
One payment, nothing more
€99 once. No subscription, now or later.
Your data stays yours
SSPARRA has no access to your health and sleep data. We never look at it and we never sell it. The S1 records your measurements on the band, then syncs them to your app, and you stay in control through Apple Health or Google Fit. See the F24H app privacy policy for details.
Track your performance.
Follow your progress.
Become better.
Sleep, recovery and training load, session after session, with no subscription.
Perform
Sleep
Progress with the F24H app
Ease off before stress decides for you.
Entrepreneur? Tough periods are not won by sleeping less. With the S1 stress alerts, know when to slow down, and come back with more momentum.
Find your ideal time to go to bed and wake up feeling great, follow your progress day after day and become the best version of yourself.
Three measurements, one decision
Every morning, know whether to push or recover.
Sleep better
Light, deep and REM phases, and a score every morning.
Know when to recover
Heart-rate variability and resting pulse to gauge your form of the day.
Dose your effort
Heart-rate zones and training load to progress without burning out.
Pick your color
Same price: €99, free delivery.
What research says
Not reviews of the S1, but what science says about band-based tracking.
An open-access review on PubMed Central followed runners wearing a connected watch. It concludes that responses to training vary widely from person to person and are linked to endurance gains: tracking your own sleep and overnight recovery therefore helps adapt your sessions.
It also notes limits: watches are reliable for sleep duration and timing, less so for sleep-stage detail, and the sample was small. That is why we advise following your trends over several days.
How it works
Wear it
On the wrist, or on the arm with the armband for intense sessions. No screen, no notifications.
Sync
The S1 connects over Bluetooth to the F24H app. Compatible with Apple Health and Google Fit.
Improve
Follow your 6-month trends and adjust your sessions.
One payment
No subscription, now or later.
€99
- One-time payment
- Free delivery
- 10 days of battery life
- 3 ATM waterproof
- 100% French after-sales service
- 14-day returns
Frequently asked questions
Is a subscription needed?
No. The S1 and the F24H app are subscription-free.
Is delivery free?
Yes, free delivery with no minimum order.
How long does the battery last?
10 days, magnetic charging: up to 80% in 60 minutes.
Is it waterproof?
Yes, 3 ATM: splashes and showers.
Can I return it?
Yes, for 14 days after receipt.
Is after-sales service in French?
Yes, 100% French.
Is it a medical device?
No. It is a wellness and training tracking tool.
OUR STORY
Ten years of connected objects
SSPARRA started from a simple belief: technology that looks after you should not cost a fortune or lock you into a subscription.
Founded in 2016, the company has more than ten years of experience in connected objects. That experience taught us to choose reliable products and offer them at the fairest price.
Founded
The start of our story.
Years of experience
In connected objects.
Quality at the best price
Reliable products, fair prices.
Accessible technology
Our mission: make technology accessible.