Frequently Asked Questions
Products and wellness features
1. Are SAYDIAN wearables medical devices?
No. They are intended for general wellness and trend awareness, not diagnosis, treatment, cure, disease prevention, or emergency monitoring.
2. Which models support an air-pump wrist check?
W9S uses an inflatable wrist cuff. E8 and R7 do not.
3. Which models support an ECG snapshot?
W9S and E8 support a single-lead ECG snapshot. R7 does not.
4. Can a wearable replace an upper-arm monitor?
No. For medical decisions, use a clinically validated device recommended by a healthcare professional.
5. Why do repeat readings differ?
Fit, posture, wrist height, movement, timing, recent activity, caffeine, stress, and individual differences can affect a result.
Fit and daily use
6. How should I position an air-pump watch?
Use bare skin, support your arm, keep the wrist near heart level, sit quietly, and remain still.
7. How tight should a watch be?
Secure enough for stable sensor contact without discomfort or restricted circulation.
8. How should the R7 ring fit?
It should stay in place during normal movement without pinching. Finger size can change with temperature and time of day.
9. Can I wear it overnight?
Yes, if the fit is comfortable and the product instructions permit it. Remove it if you notice irritation or discomfort.
10. Is the device waterproof?
Check the exact rating on the current product page and guide. Water resistance is not the same as suitability for every water activity.
App, charging, and data
11. Why will the device not pair?
Charge it, enable Bluetooth, grant the required app permissions, keep the phone close, and pair through the recommended app rather than phone settings.
12. Why is data missing?
Check fit, battery, app permissions, Bluetooth, and sync status. Gaps can occur when the device is removed or charging.
13. How often should I charge it?
Charging time varies by model and use. Build a routine that avoids gaps during the periods you want to track.
14. Can I share data with a clinician?
You may bring screenshots or exported records if the app supports them, together with dates, context, and symptoms. Let the clinician interpret them.
15. How is my account data handled?
Review the privacy policy and the permissions requested by the companion app before use.
Orders and support
16. Where can I see shipping information?
Use the Shipping Policy link in the footer and your order confirmation.
17. How do returns work?
Review the current Refund Policy and contact support with your order number before returning an item.
18. How do I contact SAYDIAN?
Use the Contact page and include your model, order number when relevant, phone type, and a clear description of the issue.
19. What should I do if a reading worries me?
Do not rely on the wearable alone. If you have symptoms or urgent concern, seek appropriate medical help.
20. Where should I start?
Visit the Health Center, choose one topic, and build one repeatable routine before adding more metrics.