Your fitnai Command Center

DA ECHO is the companion app for your fitnai Smart Glasses. Connect in seconds, browse your footage, and share your best moments — all from your phone. No cables. No complicated transfers.

Shop fitnai Smart Glasses

Instant Pairing

Open DA ECHO and your fitnai glasses connect automatically via Bluetooth in under 3 seconds.

Footage Library

All your POV clips organized in one place. Browse, trim, and save directly from the app.

One-Tap Share

Send your best moments to TikTok, Instagram, or your camera roll with a single tap.

Step 1 — Capture

Press the button on your fitnai Smart Glasses to start recording. 1200P POV footage captured instantly, hands-free.

Step 2 — Connect

Open DA ECHO on your phone. Your glasses sync automatically in under 3 seconds via Bluetooth.

Step 3 — Share

Browse your clips, trim the best moments, and share directly to TikTok, Instagram, or your camera roll.

Download DA ECHO

Available on iOS and Android. Free with every fitnai Smart Glasses purchase.

Contact us for early access

Support

We're Here to Help

Have a question about your fitnai Smart Glasses? Browse our quick answers below, or head to our full FAQ page for more detail. You can also explore our technology page to learn more about how fitnai works.

Quick Answers

Is fitnai waterproof?

fitnai is water-resistant with IP54 protection — it handles sweat, dust, and light rain. It is not fully waterproof and should not be submerged in water.

Does fitnai support prescription lenses?

Yes. fitnai supports optional RX insert frames for prescription lenses. Contact us for details on ordering a custom RX insert.

How long does the battery last?

Up to 6 hours of open-ear audio playback. Battery life varies depending on camera, AI, and audio usage.

How do I view and save my recordings?

Download the DA ECHO App on your smartphone to review, save, and share your POV clips and photos.

How do I charge fitnai?

fitnai uses magnetic charging. Attach the magnetic charging cable to the charging area on the frame.

What is your return policy?

We offer 30-day free returns. If you're not satisfied for any reason, contact us within 30 days of delivery for a full refund. View full Refund Policy →

What warranty does fitnai come with?

All fitnai products include a 1-year limited warranty covering manufacturing defects.

View all FAQs →

Contact Us

Still have questions? Our support team is ready to help during business hours — Mon–Fri, 9:00–12:00 AM & 1:30–6:00 PM (Hong Kong Time, UTC+8), excluding public holidays.

Shop fitnai Smart Glasses →  |  About fitnai →  |  Our Technology →

Experience the Technology

fitnai Smart Glasses are engineered for athletes, adventurers, and anyone who refuses to slow down. See it in action.

Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.
Shop fitnai Smart Glasses

49.3g Ultralight

Titanium-reinforced frame. Lighter than most sunglasses.

IP54 Rated

Splash and sweat resistant. Built for real outdoor conditions.

6-Hour Playback

All-day battery for audio. Up to 2 hours of continuous video recording.

Open-Ear Audio Engineering

Traditional earbuds block ambient sound — dangerous when cycling or running in traffic. fitnai's directional open-ear speakers project sound directly into your ear canal without sealing it, keeping you aware of your surroundings at all times.

Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.

AI Vision — See the World Differently

fitnai's onboard AI can identify landmarks, translate foreign text, and recognize objects in your field of view — all without taking your phone out. Powered by a dedicated AI co-processor for real-time response.

Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.

EIS — Smooth Footage, Every Terrain

Electronic Image Stabilization (EIS) corrects for vibration and sudden movement in real time. Whether you're on cobblestones or mountain trails, your footage stays smooth and watchable.

Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.

1200P Crystal-Clear POV

Most action cameras sacrifice resolution for size. fitnai doesn't. Our custom optical module captures 1200P footage at 30fps — sharp enough to read road signs, identify trail markers, and relive every detail of your ride.

Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.